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    seX & whY

    seX & whY explores how biological sex and gender influence our brain, body, and behavior. Dr. Jeannette Wolfe showcases some of this fascinating science to help us better understand ourselves and each other.
    enJeannette Wolfe41 Episodes

    Episodes (41)

    LGTBQI Health-related Issues Part 1

    LGTBQI Health-related Issues Part 1

    Show Notes for Episode Thirteen of seX & whY: LGTBQI Health-related Issues Part 1

    Host: Jeannette Wolfe
    Guests: 

    • Dr Elizabeth Samuels Assistant Professor of Emergency Medicine Warren Alpert School of Medicine at Brown University
    • Dr Michelle Forcier
    • Professor of Pediatrics at Warren Alpert School of Medicine at Brown University and Director of Gender and Sexual Health Services 

    This is the first of a three-part series that will cover LGTBQI health related issues. This podcast focuses on some basic definitions and general principles surrounding the care of gender non-conforming children and adolescents. It also discusses some of the gender affirming hormonal and surgical options available to patients. 

    Resources that we discussed

    The link to USCF’s Center of Excellence for Transgender Health

    The link to the American Academy of Pediatrics statement on transgender and gender diverse children.

    The link to the Gender Unicorn  

    Basic definitions

    Biological Sex 

    • This is related to our innate sex chromosomes and hormones

    Gender 

    • Influenced by biological sex and sociocultural constructs

    Gender Identity

    • How an individual internally perceives themselves within the norms and expectations of society in which they live

    Gender Expression

    • How an individual presents their gender publicly via mannerisms, appearance and clothing, etc

    Gender Asserting

    • How an individual perceives themselves and desires to be viewed by the world 

    Gender Affirming

    • Hormones, procedures or clothing that align with asserted gender

    Gender Dysphoria

    • The distress a person may experience when their gender identity is not aligned with their assigned sex

    Hormones commonly used

    • To stall puberty
      • Gonadotropin-releasing hormone (GnRH) analogues
    • Transmen
      • Testosterone
    • Transwomen 
      • Estradiol (and possible spironolactone or finasteride)

    Gender affirming surgeries

    Transwomen

    • breast augmentation
    • orchiectomy
    • feminizing vaginoplasty
    • reduction thyrochondroplasty
    • voice surgery

    Transmen

    • hysterectomy
    • oophorectomy
    • vaginectomy
    • metoidioplasty (clitoral release and enlargement)
    • phalloplasty/scrotoplasty
    • masculinizing chest surgery (“top surgery”)

    Gender non-conforming health related issues that can occur in transgender and gender non-conforming patients

    • Tucking of scrotum and penis that can lead to trauma/inflammation, infection, reflux
    • Estradiol related thrombosis
    • Testosterone related uterine bleeding
    • Infection or emboli from body sculpting injections 

    Take home points

    • When someone identifies themselves as transgender that simple means that their gender identity does not align with their assigned sex. It doesn’t mean that they have necessarily had specific surgeries or that they are taking certain hormones.
    • Gender identity is distinct from an individual’s sexual preference. 
    • Some younger kids can experience their gender identity in a more fluid manner. This can often make it more difficult to predict what their gender identities will be later on as adults. Supporting and respecting these kids for where they are, and understanding that their gender identity may or may not later change, is important for their social and psychological development. 
    • As kids reach puberty their gender identity is generally less fluid and more permanent, for kids and their families who our struggling with gender identity, puberty blockers are an option to give people more time to process information and make decisions 
    • Currently there are multiple gender affirming treatments available to trans-individuals, including hormonal treatments and different types of surgeries some of which may become important when a transgender individual becomes a patient in our emergency department

    Next month we will focus on how we can deliver better care to transgender and gender non-conforming patients in our emergency departments.

    Sex and Gender Differences in CPR Part 3

    Sex and Gender Differences in CPR Part 3

    Show Notes for Episode Twelve of seX & whY: Sex and Gender Differences in CPR Part 3

    Host: Jeannette Wolfe
    Guest: Dr Justin Morgenstern

    Here is a link to Justin Morgenstern’s awesome First10EM blog site where you can find an excellent review of the two papers that we discussed today: Perman’s DNR paper and Huded’s Cleveland Clinic Study on gender gaps in 30 day survival after ST elevation myocardial infarctions.

    Here are some take home points for this podcast: 

    • We don’t know what we don’t study and when we don’t consider sex and gender as legitimate variables, we can inadvertently miss opportunities to improve the health of all of our patients.
    • There appears to be lots of sex-based differences in cardiac electrophysiology
      • females are more prone to AV nodal re-entrant arrhythmias, sick sinus syndrome, prolonged QTc and postural orthostatic tachycardia syndrome
      • males are more prone to AV block, early repolarization, Brugada’s syndrome, accessory pathway-mediated arrythmias, idiopathy ventricular arrhythmias and dangerous arrythmias associated with arrhythmogenic right ventricular cardiomyopathies
    • In many ways, biological sex represents a much “cleaner” variable to study in that most of us have a sex specific chromosomal pairing and hormonal cocktail that allows us to be more easily placed into a binary male or female category.
    • Biological sex differences are often detected and treated by tweaking technology- adjusting the results of a blood test or using a different type of imaging modality to account for sex based physiologically differences.
      • Biological sex is akin to the variable of age- its importance is related to context. Although a 15 year and 50-year-old may get the same evaluation for an ankle sprain they should not get the same evaluation for chest pain. Similarly, how females and males react to any particular treatment may or may not be associated with a clinically important difference.
      • As the science of earnestly studying males and females side by side is still so new, we are just beginning to understand where differences actually exist and in what contexts they are clinically relevant.
    • As the influence of gender can be quite subtle and often involves many touchpoints, recognizing and fixing gender-based differences can be challenging. For example, here is how an individual’s gender might influence what happens to them if they have a heart attack.
      • Whether they live alone
      • If and when they call an ambulance
      • If they come in by car, how quickly they are triaged
      • Where they are geographically placed in the department
      • How they describe their symptoms
      • How their symptoms are perceived by providers (which in turn may be confounded by provider gender)
      • How quickly an EKG is done
      • How comfortable they are with procedural consent
      • How quickly they go to the cath lab
      • When and what type of medications they are prescribed
      • Who they are referred to for follow up
      • Whether they are compliant with their new meds or appointments
      • Whether they are referred to and participate in cardiac rehab
    • Currently, I suspect that most of us in medicine would likely acknowledge that there are some legitimate examples out there of gender and race- based health inequities. The next step, however, requires an acknowledgement that those inequities are not just happening somewhere else, but that they have also likely creeped into our own practices. This can be difficult because it directly threatens our explicit belief that we deliver “the same” excellent care to all of our patients.
    • Recognizing and mitigating gender disparities, especially those related to implicit bias, requires deep self-reflection along with an individual and organizational commitment to actually want things to change.
    • Solutions include wide-spread “no-blame” educational forums and the development of technical safeguards to help reduce unintentional bias. For example, the creation of default “opt in” disease specific order sets and operational checklists.

    Here is a table that shows outcome data from Bosson’s JAHA paper from LA County data base that we briefly mentioned on the podcast.  

     

    Men

    Women

    CPR

    41%

    39%

    shockable

    35%

    22%

    STEMI

    32%

    23%

    Cath

    25%

    11%

    TTM

    40%

    33%

    Survival/CPC 1-2

    24%

    16%

     

    Other studies discussed.

    European study that examined sex-differences in atrial fibrillation study

    Danish study on cardiac arrests in people less than 35 with 2 to one ratio of men to women

    Korean eunuch study suggesting that a historical lineage of castrated males outlived several socioeconomically matched peers, supporting the concept of a disposable soma theory.

    Cleveland Clinic informational sheet on arrhythmias in women

    Study that suggests more women than men die or go to hospice after an intracranial hemorrhage and brings up idea of gender-based differences in “social capital” contributing to this difference

    EOL choices in advanced cancer patients showing gender differences in palliative care and DNR preferences

    Sex and Gender Differences in CPR Part 2

    Sex and Gender Differences in CPR Part 2

    Show Notes for Episode Twelve of seX & whY: Sex and Gender Differences in CPR Part 1 & 2

    Host: Jeannette Wolfe
    Guest: Dr Justin Morgenstern

    Two big databases surrounding cardiac arrest

    • Cares- Cardiac Arrest Registry to Enhance Survival which is based on information from national EMS data input via the NEMSIS national EMS information system
    • ROC- Resuscitation Outcomes Consortium (ROC) 2011-2015. The ROC is a network of National Institutes of Health -funded clinical trial network evaluating out of hospital cardiac arrests that collects data from 11 different sites around the United States

    Here are two great articles that cover this material in depth

    What we know

    • Over 350,000 people will have a cardiac arrest this year
    • Men account for about 2/3 of OHCA
    • About 20-25% will occur in public place
      • Men are proportionately more likely to collapse in public place than women (19% versus 8.4% in one study)
    • About half of cardiac arrests are witnessed (about 37% by layperson and 12% by EMS)

    (46% vs 52%  in one study)

    • Bystander CPR doubles to triples rates of survival
    • Rates of bystander CPR are highly variable and depend heavily upon where you live and its demographics with CPR being less likely to be started in predominately minority and lower socioeconomic communities. Overall, it appears that about 35-40% or cardiac arrests will get bystander CPR
    • Where you live is also dramatically associated with your rates of leaving the hospital neurologically intact.
      • One study that examined 132 different counties showed, depending upon the county,  functional recovery rates ranging from 0.8%-20% (which again, is likely heavily influenced by  variations in CPR and AED use.)
    • CARES data bank stats suggest that out of hospital cardiac arrest (OHCA)
      • 28% live to hospital
      • 8% leave neurologically intact
    • Usually less than 20% of initial rhythms of OHCA are shockable
      • though sex difference here also

    (one study 29% men vs women 16% with initial shockable rhythm)

    • Per one survey  about 2/3 of people has some type of CPR training with 20% being currently trained
      • CPR training noted to be lower amongst Hispanics, elderly, lower income, less formally educated
    • Of those trained in CPR only about 1/3 of people will actually step up and do it when indicated

    First study

    Gender disparities among adult recipients of bystander cardiopulmonary resuscitations in the Public from Audrey Blewer in Cir Cardiovasc Qual Outcomes 2018

    Primary study question- is there an association between an individual’s biological sex and the likelihood they will receive bystander CPR

    Resuscitation Outcomes Consortium (ROC) 2011-2015

    This was a retrospective analysis of data collected in a prospectively for several clinical trials in out of hospital cardiac arrests from 7 of these sites.

    Exclusion:

    Traumatic arrest

    Occurs in a residential institution or hospital

    Less than 18

    CPR initiated by someone who was not a layperson (police EMS doc)

    The variable they used in logistic regression modeling included whether event was witnessed, location, layperson CPR, time of event, and basic demographics including age, race, gender

    Nontraumatic out of hospital cardiac arrests

    19331 events

    Mean age 64

    63% male

    17% public location (3297)

    82% private (15788)

    Overall 37% received CPR (38% of men and 35% of women)

    If collapse occurred in public place

    • 45% of men and 39% of women

    If collapse occurred in private place

    • 36% of men and 35% of women received CPR

    Overall: Males had 29% increased odds of survival

    Bottom line: If you have a OHCA in public you are about 6% more likely to receive CPR if you are a man than a woman

    This is not the only study showing gender differences in CPR here is a   Netherland study and an avatar study which also highlight these differences.

    There are also studies suggesting subtle gender differences in EMS treatment of chest pain/cardiac arrest:

    Ok so why is that happening?

    So first let’s talk about some general barriers to stepping up and doing CPR in public-

    A 2008 study by Swor in Annals of EM interviewed almost 700 bystanders to an OHCA. Although about ½ of the bystanders had previous CPR training only about 20% actually started doing CPR.

    Cited barriers to doing CPR included:

    - feeling of panic (reported by about 38% )

    - concern of doing it incorrectly (9%)

    - concern they could cause harm (1%)

    - reluctance to do mouth to mouth (1%)

    In another study which surveyed community members from areas in which there were low rates of bystander CPR to understand why the rates were so low, answers included:  

    - fear of getting sued

    - emotional overtones of the situation

    - lack of knowledge

    - situational concerns 

    A different study suggested that disagreeable physical characteristics- read dentures and vomit-  might hamper CPR initiation.

    Overall you are more likely to step up and do CPR if

    • CPR training within last 5 years (OR 6.6)
    • in public (OR 3.1)
    • see them collapse (OR 2.3);
    • bystander has greater than a high school education (OR 2.0)

    So the next question is, are these the reasons why there is a gender difference in who gets bystander CPR or are there additional factors to consider.

    Second study

    Public Perceptions on Why Women Receive Less Bystander Cardiopulmonary Resuscitation than Men in Out of Hospital Cardiac Arrest

    Perman Circulation 2019

     Primary Question- what are the public perceptions as to why women are less likely to get bystander CPR?                                            

    Methods- Electric survey via Amazon’s crowdsourcing platform- Mechanical Turk. Participants were English, >18 and familiar with CPR principles

    Mechanical Turk- have “master users” people achieve this rate by apparently having a history of completing other surveys out appropriately in the past (essentially successfully answering planted “attention” surveys which suggests that they are actually reading the surveys)

    Participants were asked 11 multiple choice questions and one free text- “ Do you have any ideas on why women may be less likely to receive CPR than men when they collapse in public?” Free text responses were coded and major themes were identified by using an inductive qualitative method.  

    548 subjects

    542 completed surveys

    average age 38

    equal number of males and females about 1% of participants were transgender

    81% White 7% Black 6% Asian 3% Hispanic

    45% college diploma

    ½ were trained at some time in CPR (top reasons for training were cited a work or volunteer related requirement)

    24 had actually done CPR on a collapsed person-

    Three major themes evolving:

    1) Sexualization of woman’s bodies (40% of men mentioned versus 29% of women)

         - fear of making incidental contact with a woman’s breast

    “I think that people are afraid to touch the breast region, so hesitate to administer CPR”

         - fear of being wrongfully accused of sexual abuse

    “Bystanders, especially male bystanders, may be afraid to touch women especially in the chest area... anxious that their help my be unnecessary and therefore touching may be misconstrued”

    “Men are afraid of seeming like perverts”

    2) Perception that women are weaker and frailer and thus at greater risk for injury if CPR was not really needed

    “People might be afraid of hurting them since women tend to be smaller and more fragile looking than men

    3)  Misperception of what actual distress looks like in females

    ”They are not known to have as many heart attacks in public, they are known to be healthier”

     “ Maybe people assume they are being dramatic and overreacting so CPR isn’t needed” 

    Interestingly in the open- ended responses it was frequently implied by use of pronouns that the bystander initiating CPR would be a man. Along these lines, this European paper hints that gender related issues may also influence who steps up to start CPR.

    My (liberal) summary of paper:

    “Look I’m not super thrilled about the idea of touching a woman’s breast and quite frankly I’m a little scared about being accused of sexual assault.  And also, if I’m honest, I’m a little suspicious that the woman might be collapsing from something less serious, because most cardiac arrests seem to happen in guys. Finally, if I do start CPR on a woman and they really didn’t need it, I’m afraid I might accidentally physically hurt her.

    Five take home points

    • As more than 60% of cardiac arrests do not get bystander CPR, please consider sending out these CPR videos from the American Heart Association and The British Heart Foundation to friends or family members to teach and/or reinforce basic CPR principles as good CPR doubles to triples survival rates.
    • There are innate biological sex differences associated with out of hospital cardiac arrests including: 2/3 of cardiac arrest occur in men who collapse on average collapse about 7-10 years earlier than women. Men are also more likely to have an initial shockable rhythm.
    • Gender related issues, which can notoriously sneak under the radar if we don’t intentionally look for them, can also impact cardiac arrests. The study we talked about today suggested about a 5-6% absolute differences in public bystander CPR rates with men receiving more CPR. Concerningly there is similar research suggesting gender based inequities of both the EMS and hospital management level of cardiac arrest and we will continue this discussion in part 2 of our series. Although more deductive research is needed, there are hints that some of these gender related CPR differences are rooted in concerns surrounding sexuality, perceptions about fragility and misconceptions that collapsing women are unlikely to be having a cardiac arrest.
    • The first step to gender- based gaps in cardiac arrest is to simply validate they exist. If you teach CPR, recognize and normalize that for some learners, invading someone’s personal space can feel totally awkward and then encourage them to mentally rehearse different scenarios in which they visualize themselves successfully starting CPR.  Using tools like the womanikin can help.
    • As it appears that only about 30% of people who already know CPR, will actually step up to do it, we must work on ways to close this gap. Considering the introduction of stress inoculation and introducing things like Mike Lauria’s breath, talk, see and focus technique holds promise.

    Other references

    High Sensitivity Troponin and Gender Differences in treatment after ACS

    North Carolina’s Heart Rescue Intervention

    Article about CPR and Good Samaritan laws

    Sex and Gender Differences in CPR Part 1

    Sex and Gender Differences in CPR Part 1

    Show Notes for Episode Twelve of seX & whY: Sex and Gender Differences in CPR Part 1 & 2

    Host: Jeannette Wolfe
    Guest: Dr Justin Morgenstern

    Two big databases surrounding cardiac arrest

    • Cares- Cardiac Arrest Registry to Enhance Survival which is based on information from national EMS data input via the NEMSIS national EMS information system
    • ROC- Resuscitation Outcomes Consortium (ROC) 2011-2015. The ROC is a network of National Institutes of Health -funded clinical trial network evaluating out of hospital cardiac arrests that collects data from 11 different sites around the United States

    Here are two great articles that cover this material in depth

    What we know

    • Over 350,000 people will have a cardiac arrest this year
    • Men account for about 2/3 of OHCA
    • About 20-25% will occur in public place
      • Men are proportionately more likely to collapse in public place than women (19% versus 8.4% in one study)
    • About half of cardiac arrests are witnessed (about 37% by layperson and 12% by EMS)

    (46% vs 52%  in one study)

    • Bystander CPR doubles to triples rates of survival
    • Rates of bystander CPR are highly variable and depend heavily upon where you live and its demographics with CPR being less likely to be started in predominately minority and lower socioeconomic communities. Overall, it appears that about 35-40% or cardiac arrests will get bystander CPR
    • Where you live is also dramatically associated with your rates of leaving the hospital neurologically intact.
      • One study that examined 132 different counties showed, depending upon the county,  functional recovery rates ranging from 0.8%-20% (which again, is likely heavily influenced by  variations in CPR and AED use.)
    • CARES data bank stats suggest that out of hospital cardiac arrest (OHCA)
      • 28% live to hospital
      • 8% leave neurologically intact
    • Usually less than 20% of initial rhythms of OHCA are shockable
      • though sex difference here also

    (one study 29% men vs women 16% with initial shockable rhythm)

    • Per one survey  about 2/3 of people has some type of CPR training with 20% being currently trained
      • CPR training noted to be lower amongst Hispanics, elderly, lower income, less formally educated
    • Of those trained in CPR only about 1/3 of people will actually step up and do it when indicated

    First study

    Gender disparities among adult recipients of bystander cardiopulmonary resuscitations in the Public from Audrey Blewer in Cir Cardiovasc Qual Outcomes 2018

    Primary study question- is there an association between an individual’s biological sex and the likelihood they will receive bystander CPR

    Resuscitation Outcomes Consortium (ROC) 2011-2015

    This was a retrospective analysis of data collected in a prospectively for several clinical trials in out of hospital cardiac arrests from 7 of these sites.

    Exclusion:

    Traumatic arrest

    Occurs in a residential institution or hospital

    Less than 18

    CPR initiated by someone who was not a layperson (police EMS doc)

    The variable they used in logistic regression modeling included whether event was witnessed, location, layperson CPR, time of event, and basic demographics including age, race, gender

    Nontraumatic out of hospital cardiac arrests

    19331 events

    Mean age 64

    63% male

    17% public location (3297)

    82% private (15788)

    Overall 37% received CPR (38% of men and 35% of women)

    If collapse occurred in public place

    • 45% of men and 39% of women

    If collapse occurred in private place

    • 36% of men and 35% of women received CPR

    Overall: Males had 29% increased odds of survival

    Bottom line: If you have a OHCA in public you are about 6% more likely to receive CPR if you are a man than a woman

    This is not the only study showing gender differences in CPR here is a   Netherland study and an avatar study which also highlight these differences.

    There are also studies suggesting subtle gender differences in EMS treatment of chest pain/cardiac arrest:

    Ok so why is that happening?

    So first let’s talk about some general barriers to stepping up and doing CPR in public-

    A 2008 study by Swor in Annals of EM interviewed almost 700 bystanders to an OHCA. Although about ½ of the bystanders had previous CPR training only about 20% actually started doing CPR.

    Cited barriers to doing CPR included:

    - feeling of panic (reported by about 38% )

    - concern of doing it incorrectly (9%)

    - concern they could cause harm (1%)

    - reluctance to do mouth to mouth (1%)

    In another study which surveyed community members from areas in which there were low rates of bystander CPR to understand why the rates were so low, answers included:  

    - fear of getting sued

    - emotional overtones of the situation

    - lack of knowledge

    - situational concerns 

    A different study suggested that disagreeable physical characteristics- read dentures and vomit-  might hamper CPR initiation.

    Overall you are more likely to step up and do CPR if

    • CPR training within last 5 years (OR 6.6)
    • in public (OR 3.1)
    • see them collapse (OR 2.3);
    • bystander has greater than a high school education (OR 2.0)

    So the next question is, are these the reasons why there is a gender difference in who gets bystander CPR or are there additional factors to consider.

    Second study

    Public Perceptions on Why Women Receive Less Bystander Cardiopulmonary Resuscitation than Men in Out of Hospital Cardiac Arrest

    Perman Circulation 2019

     Primary Question- what are the public perceptions as to why women are less likely to get bystander CPR?                                            

    Methods- Electric survey via Amazon’s crowdsourcing platform- Mechanical Turk. Participants were English, >18 and familiar with CPR principles

    Mechanical Turk- have “master users” people achieve this rate by apparently having a history of completing other surveys out appropriately in the past (essentially successfully answering planted “attention” surveys which suggests that they are actually reading the surveys)

    Participants were asked 11 multiple choice questions and one free text- “ Do you have any ideas on why women may be less likely to receive CPR than men when they collapse in public?” Free text responses were coded and major themes were identified by using an inductive qualitative method.  

    548 subjects

    542 completed surveys

    average age 38

    equal number of males and females about 1% of participants were transgender

    81% White 7% Black 6% Asian 3% Hispanic

    45% college diploma

    ½ were trained at some time in CPR (top reasons for training were cited a work or volunteer related requirement)

    24 had actually done CPR on a collapsed person-

    Three major themes evolving:

    1) Sexualization of woman’s bodies (40% of men mentioned versus 29% of women)

         - fear of making incidental contact with a woman’s breast

    “I think that people are afraid to touch the breast region, so hesitate to administer CPR”

         - fear of being wrongfully accused of sexual abuse

    “Bystanders, especially male bystanders, may be afraid to touch women especially in the chest area... anxious that their help my be unnecessary and therefore touching may be misconstrued”

    “Men are afraid of seeming like perverts”

    2) Perception that women are weaker and frailer and thus at greater risk for injury if CPR was not really needed

    “People might be afraid of hurting them since women tend to be smaller and more fragile looking than men

    3)  Misperception of what actual distress looks like in females

    ”They are not known to have as many heart attacks in public, they are known to be healthier”

     “ Maybe people assume they are being dramatic and overreacting so CPR isn’t needed” 

    Interestingly in the open- ended responses it was frequently implied by use of pronouns that the bystander initiating CPR would be a man. Along these lines, this European paper hints that gender related issues may also influence who steps up to start CPR.

    My (liberal) summary of paper:

    “Look I’m not super thrilled about the idea of touching a woman’s breast and quite frankly I’m a little scared about being accused of sexual assault.  And also, if I’m honest, I’m a little suspicious that the woman might be collapsing from something less serious, because most cardiac arrests seem to happen in guys. Finally, if I do start CPR on a woman and they really didn’t need it, I’m afraid I might accidentally physically hurt her.

    Five take home points

    • As more than 60% of cardiac arrests do not get bystander CPR, please consider sending out these CPR videos from the American Heart Association and The British Heart Foundation to friends or family members to teach and/or reinforce basic CPR principles as good CPR doubles to triples survival rates.
    • There are innate biological sex differences associated with out of hospital cardiac arrests including: 2/3 of cardiac arrest occur in men who collapse on average collapse about 7-10 years earlier than women. Men are also more likely to have an initial shockable rhythm.
    • Gender related issues, which can notoriously sneak under the radar if we don’t intentionally look for them, can also impact cardiac arrests. The study we talked about today suggested about a 5-6% absolute differences in public bystander CPR rates with men receiving more CPR. Concerningly there is similar research suggesting gender based inequities of both the EMS and hospital management level of cardiac arrest and we will continue this discussion in part 2 of our series. Although more deductive research is needed, there are hints that some of these gender related CPR differences are rooted in concerns surrounding sexuality, perceptions about fragility and misconceptions that collapsing women are unlikely to be having a cardiac arrest.
    • The first step to gender- based gaps in cardiac arrest is to simply validate they exist. If you teach CPR, recognize and normalize that for some learners, invading someone’s personal space can feel totally awkward and then encourage them to mentally rehearse different scenarios in which they visualize themselves successfully starting CPR.  Using tools like the womanikin can help.
    • As it appears that only about 30% of people who already know CPR, will actually step up to do it, we must work on ways to close this gap. Considering the introduction of stress inoculation and introducing things like Mike Lauria’s breath, talk, see and focus technique holds promise.

    Other references

    High Sensitivity Troponin and Gender Differences in treatment after ACS

    North Carolina’s Heart Rescue Intervention

    Article about CPR and Good Samaritan laws

    Interview with Dr. Cara Tannenbaum, Part 2

    Interview with Dr. Cara Tannenbaum, Part 2

    Show Notes for Podcast Eleven, Part 2 of seX & whY

    Host: Jeannette Wolfe

    This is a continuation of my interview with Dr. Cara Tannenbaum, Professor in the Faculties of Medicine and Pharmacy at the Université de Montréal in Canada, and Scientific Director of the Institute of Gender and Health of the Canadian Institutes of Health Research

    Our discussion and the following table is centered around this recent review article by Dr. Tannenbaum found in Pharmacology Research 2017

    Type of experiment

    Traditional way

    Better way

                     Stem cells

    -Male cells

    -Unknown sex of stem cells

    -Problems: in immortal cell lines the integrity of in vivo sex chromosomes diminishes over time and can complicate the identification of sex- based differences.

    Similarly, although normal female cells have two X chromosomes- one from the mother and one from the father- one of those chromosomes is usually turned “off”. With Stem cells however, after multiple reproductive cycles there can get something called “X skewing” in which instead of some cells turning off the maternal chromosome and others the paternal one, there is overrepresentation of one line.

    Conversely in “X escape”, the second X chromosome is no longer getting inactivated and this can cause trouble because too much X gene is getting expressed (for example this could lead to significant autoimmune problems) 

    Use and record results of both male and female cell lines

    Know sex & of donor     

    -       Include cell lines with finite life spans

    -       Add sex hormones to XX and XY cell

    -       X chromosomes house genes that influence: cellular growth, metabolism and immunity

    -       Y chromosomes contain genes beyond SRY (which makes testosterone), and if loss Y chromosome increased risk of Alzheimers and certain cancers

    Gendered Innovations group in Korea has actually labeled sex of commercial cell lines

     

                     

    Lab animal

    Standard use of male animals

    -80% of traditional research done on males

    -Females felt to be too variable due to estrous cycle* (average of 4 days)

    Inclusion of female animals**

    -analyze data by sex

    -include factorial designs that allow for the identification of age or hormonal influence in outcome

    -Consideration of housing conditions that can lead to hormonal fluctuations

    Phase trials

     

     

    Change began with The NIH Revitalization

    Phase 1 and 2

    Currently it is believed that women still make up less than 25% of Phase 1

    Include sex and age as independent variables

     

    Further query if discovered sex differences are due to sex-based differences in pharmacokinetics (how our body’s characteristics like our weight or liver function influence the drug) or pharmacodynamics (how the drug influences our body) 

    Phase 3 trials

    As it was believed that outside the reproductive organs that males and females were physiologically the same,  most studies focused on males and thus side effects in females were often missed or underappreciated  

     

     

    Report and analyze data by sex and age

     

    Use updated statistical models to calculate appropriate sample sizes prior to starting study so that any identified differences are likely to represent valid findings  

     

    Further explore hormonal states of study participants. For example, if they are pre or post menopausal, pregnant, or if they are taking hormones such as estrogen or testosterone.

     

    56% of participants in drug trials submitted to FDA in 2018 were women

    Phase 4

    As this is further analysis of a drug after it hits the market, it can take a long time to pick up sex-based differences.

    Poster child of this is Ambien in which dosing adjustment for women took 20 years

    Analyze results from “real world” use of drug and its side effects by sex and age

     

    Go back to lab to identify etiology of discovered sex or age differences

     

    Adjust dosing when important differences are discovered

    Click here for a paper that nicely summarizes the reasons behind why females were underrepresented in scientific research during the 20th century.

    Other points   

    • Important variables to consider when talking about biological sex
      • Sex chromosomes
        • X chromosome contains 1669 genes
        • Y chromosome contains 426 genes
      • Sex hormones
        • We all have testosterone, progesterone and estrogen it is the ratios that differ between men and women
        • Hormones influence us in two ways
          • The cocktail of hormones our brain is exposed to during prenatal and pubertal development leads to permanent wiring changes in the brain.
          • The fluctuating blips of hormones caused by multiple different triggers (like the estrous cycle or dominance posing) can lead to transient wiring changes.
          • Depending upon specific context organizational and activational hormones can potentially influence outcome data
          • There are new study designs that can help identify potential hormonal based differences that do not require an excessive sample size or budget
        • Age
        • Gender

    What we do (and what society allows us to do) influences our epigenetics and future gene expression.

    For example, our gendered professions- men work more in coal mines and women in nail salons- can influence stuff we are exposed to which in turn can influence are future gene expression.  This is further complicated by males and females having potentially different DNA modifications after exposure to the same insult. Ultimately this can make it tricky to sometimes distinguish what is a sex- based difference versus a gender one.

    • The X chromosome has 1669 known genes on it and the Y chromosome 426 genes

    Miscellaneous

    2017 Tetris study on decreasing PTSD intrusive thoughts after C-section.

    Interview with Dr. Cara Tannenbaum

    Interview with Dr. Cara Tannenbaum

    Show Notes for Podcast Eleven of seX & whY

    Host: Jeannette Wolfe

    Interview with Dr. Cara Tannenbaum, Professor in the Faculties of Medicine and Pharmacy at the Université de Montréal in Canada, and Scientific Director of the Institute of Gender and Health of the Canadian Institutes of Health Research

    Definitions

    Biological Sex- chromosomes, hormones, reproductive anatomy, usually binary

    Gender- social and cultural construct- falls on a spectrum

    Historically factors that limited the inclusion of women in clinical trials.

    • Belief that outside of reproductive zones, males and females were the same
    • Dogma that the female estrous cycle screwed up data and that male animals produced “cleaner” results
      • Two interesting facts: 1) Many female rodents’ entire estrous cycle is only 4 days!; and 2) We now know that male animals also have significant hormonal fluxes and that overall they are actually just as variable as females- see review
    • Concern after the worldwide thalidomide nightmare* and the public backlash from the discovery of several unethical government sponsored clinical trials, that fetuses (along with prisoners and children) needed extra protection from the potential of unnecessary harm by participation in a research trial. This led to regulatory protection via the Common Rule. As any women of child-bearing age could theoretically become pregnant, they (and ultimately by cultural proxy all women) were essentially excluded from most human trials and early clinical phase drug trials from 1970’s to the mid 1990’s.
      • To read and an inspiring story as to why most of American was saved from the limb-shortening horrors of thalidomide, read here. (Essentially, FDA scientist Dr. Oldham Kelsey refused to sign off on its application, even amidst considerable pressure from the drug company, due to concern of inadequate evidence.)

    Interesting sex and gender differences in car crashes

    • Crash dummy 101
      • Historically crash dummy is Hybrid III which is 5’9’’ 170 pounds representing an average male
      • Hybrid III female model- 5’ 110 pounds
      • Other models- used by NHTSA
      • Why injury patterns may be different between men and women
        • Differences in baseline anthropometric measures (like height)
        • Biomechanical differences (women more prone to whiplash due to differences in neck muscular)
        • Mechanical design (Smaller adults sit closer to steering wheel and increase risk of lower extremity injury, and are more vulnerable to side impact since more of their head is in front of window)
      • NASS CDS data
        • Weight annual sample of US 5000 police reported tow away crashes
        • Collects data on
          • Occupant demographics (Age, sex, weight, BMI; Restraint use; Injuries obtained (via medical records and interviews) standardized into an abbreviated injury scale (AIS). It examines fatality and whole body and regional injuries, on a 1-6 scale of severity
          • Vehicle properties (Type, model year)
          • Crash conditions (Estimated speed, mechanism of impact)

    What we know from NHTSA data and Insurance Institute for Highway Safety

    • Overall, males represent about 70% of overall fatalities for crashes
      • Greatest gender differences is in 20-29 age group
      • Men more likely to have alcohol involved in accident
    • On average men drive about 5000-6000 miles/yr more than women
      • Women more likely to work closer to home
        • Crashes more likely to be low speed and to occur in more congested areas
      • If a man and a woman are both in car
        • Males more likely to be driver
      • Summary of Bose study Vulnerability of female drivers involved in motor vehicle crashes: An analysis of US population at risk.
        • Question they asked- for a comparable crash do male and female drivers sustain similar rates of injuries.
          • Examined injury outcomes in men and women using 1998-2008 NASS CDS data set
          • For a comparable crash, women had 47% percent greater chance of being severely injured than men (had a higher risk of chest and spine injuries)
          • Of note the researchers controlled for weight and BMI

    Other evidence that the clinical relevance of studying different sized and biomechanical models in crashes is important is shown by data obtained in 2011 after the NHTSA changed their safety star ratings to include testing of a female sized dummy in the front passenger seat. Many cars found their ratings go down, for example the 2011 Sienna minivan saw its ratings for passenger frontal crashes go from 5 star to 2 after it was shown that at 35mph that 20-40% of female dummies were killed or seriously injured compared to the industry average of 15%.

    Underscoring the “literal” blind spots that can occur if you don’t consider factors associated with diversity in study design, a recent study from Georgia Tech suggested that some of the visual recognitions systems used that are critical for self-driving car safety may not adequately recognize dark skinned faces showing a 5% increased chance of error in recognition compared to that of fair skinned faces. Of note, there is a significant lack of gender and racial diversity in the self-driving car technology teams and in artificial intelligence/tech research overall.

    Who makes up the team influences what gets studied, click here for a recent Lancet article and here for a Nature Human Behavior one both  showing that sex-related outcomes are far more likely to be reported in medical research consisting of diverse teams.

    Take home points

    • Including the variables of biological sex and gender in research results in better science and has led to the discovery of huge knowledge gaps that need to be closed if we want to optimize the care of all of our patients
    • Our historical medical research model has been predominately based on the study of male animals. There are multiple reasons for this including a true belief that: outside our reproductive zones that men are women are exactly the same; using males animal produces cleaner data; and including women of child bearing age in clinical research trials exposes women to unnecessary risks without significant benefit. We now know that all these reasons are fundamentally flawed. Every cell has a sex and the differences between men and women outside their reproductive zones are often quite clinically important. Studying males and females side by side helps us to optimize the care of both sexes. In women it allows us to double check that therapies that were originally developed in men actually work in women and have the same benefit/side effects profiles. And for men, in instances when it is discovered that women have more favorably outcomes, it allows us to go back to the lab, figure out why there is a difference and then to use that knowledge to develop new therapies to help men.
    • To move the scientific community and its deeply ingrained culture to a new model that incorporates the variables of sex and gender will require a comprehensive multi-targeted approach. Key considerations include- engagement, education, skill building around research methodology and analysis, mentoring and funding incentivization. Of note Institutional review boards, journal editors, grant reviewers and conferences directors have great power to jump start this transition by including an expectation of sex and/or gender inclusion in submission requirements.
    • As we live in an ever increasingly complex world, now more than ever, it is essential that we pay attention to who is actually doing the research and developing new technologies. A diverse world requires diverse teams.

    Next month we will look at the science pipeline from bench to bedside to identify opportunities to do better science.

    How to Give Better Feedback

    How to Give Better Feedback

    Show Notes for Podcast Ten of seX & whY

    Host: Jeannette Wolfe

    Guests: Adam Kellogg, Associate residency directory and medical education fellowship director UMMS - Baystate and Mike Gisondi, Vice-chair of education at Stanford

    Topic: How to Give Better Feedback

    What is bad feedback -

    • Vague
    • Nonactionable
    • Feedback on non-malleable attributes - like gender, age
    • Sandwich model
    • Done in public place in front of peers

    Know what role you are playing (from Thanks for the Feedback)

    • Cheerleading: encouragement
    • Coach: real time pointers
    • Evaluator: comparison of performance to peers or expected benchmark

    We are most effective giving and receiving feedback if expectation of roles match up - ie a novice putting in their first central line needs a coach not an evaluator. 

    Radical Candor- Develop as a Leader and Empower your Team by Kim Scott

    • Caring personally
    • Challenging directly

    Feedback formula by Lisa Stefanar KSE leadership

    • Ask permission
    • State intention (be a better doctor)
    • State behavior
    • Describe impact
    • Inquire about learner experience
    • Identify desired change 

    General tips

    • Feedback is also received best if the learner has a sense of belonging and a believe that you recognize their potential
    • Is it the right time (asking them helps)
    • Praise in public, give tough feedback in private
    • Label it - as in “I’d like to give you feedback, is now a good time?”
    • If you anticipate that you might get emotional during feedback, prepare and practice a response. For example, “I obviously have a powerful response to this information could we please take a 5 min break and regroup”
      • Emphasize your desire to hear feedback
      • If needed ask for clarification
    • If you are giving feedback and the other person becomes emotional
      • Consider using “Name and Tame strategy
        • “Last time I gave you feedback, I noticed that you did…….. and I have to tell you, honestly now I’m a little more hesitant. As I want you to be the best doc you can be, is there a particular way that would work best for you to receive feedback?”
      • Switch-tasking- many times conversations can change
        • Recognize which conversation you are going to tackle
          • The one about a specific behavior
          • The one about an emotional tag 

    Suggested books

    Thanks for the Feedback- Douglas Stone Sheila Heen

    Radical Candor by Kim Scott

    Articles by Mike Gisondi and Lisa Stefanac and the Feedback Formula

    https://icenetblog.royalcollege.ca/2018/10/02/the-feedback-formula-part-1-giving-feedback/

    https://icenetblog.royalcollege.ca/2018/10/23/the-feedback-formula-part-2-receiving-feedback/ 

    Wise feedback intervention: https://www.apa.org/pubs/journals/releases/xge-a0033906.pdf

    Harvard Business School article on gender differences in receiving feedback https://hbr.org/2016/04/research-vague-feedback-is-holding-women-back

    Harvard Business School article with deals with managing emotional response to feedback

    https://hbr.org/2016/09/how-to-give-feedback-to-people-who-cry-yell-or-get-defensive

     

    Gender Differences in Resident Evaluation

    Gender Differences in Resident Evaluation

    Show Notes for Podcast Nine of seX & whY

    Host: Jeannette Wolfe

    Guests: Dr. Dan O’Connor, Dr. Anna Mueller

    Topic: Gender Differences in Resident Evaluation

    Welcome back to Sex and Why. In this episode I am joined by Dr. Dan O’Connor, a dermatology resident at Harvard and co-founder of Monte Carlo software that makes apps for medical educators, and Dr. Anna Mueller, who is a medical sociologist and Professor in the Department of Comparative Human Development at the University of Chicago. They are here to discuss their research showing gender disparities in evaluations of emergency medicine residents. 

    First study

    Comparison of Male vs Female Resident Milestone Evaluations by Faculty During Emergency Medicine Residency Training. JAMA Internal Medicine 2017

    This study examined data from a real time milestone evaluation app used on emergency medicine residents. It involved 356 residents (66% male 34% female) and 285 faculty (68% male and 32% female) at 8 different sites and included over 33,000 evaluations. They showed that although male and female residents had similar evaluations during their first year of training, by their 3rd year male residents were evaluated statistically higher across all 23 core competencies and this occurred regardless of the gender of the evaluator.

    Second study

    Gender Differences in Attending Physicians’ Feedback to Residents: A Qualitative Analysis. Journal of Graduate Medical Education 

    This follow up study was done to better understand why there are gender differences in the evaluations and focused on a qualitative analysis of comments written about third year residents at one of the above program sites. It involved analyzing and creating summaries of individual residents (who had at least 15 written evaluations) and included an analysis of over 1000 comments on more than 45 residents.

    General findings:

    • Evaluations often contained personality related comments even when the task that was being evaluated was objective or technical
    • Men, compared to women, appeared to have more comments associated with praise versus criticism around these personality related comments
    • Men appeared to have more concordant feedback by evaluators concerning how to improve in areas in which they struggled
    • Women received more discordant feedback about ways to do things better in areas in which they struggled especially surrounding issues about autonomy and leadership
    • Evaluators perceived that women were less likely than men to receive feedback appropriately.
    • Evaluators were more likely to include encouraging comments concerning “a sense of belonging” to male residents

    Steps moving forward

    • Take a deep breath- this is difficult stuff to discuss and it can easily feel like an attack upon our character.
    • Come to terms that this data is real and legit. This topic is incredibly important and we need to consciously move past our own visceral discomfort of it to find better ways to teach and evaluate the next generation of doctors.
    • Do a private audit of your own evaluations
    • Be more objective in suggestions for improvement
    • Reinforce a sense of belief in ability and of belonging

     Stay tuned for next month in which we will tackle feedback.

    Dayal, A., O’Connor, D. M., Qadri, U., & Arora, V. M. (2017). Comparison of Male vs Female Resident Milestone Evaluations by Faculty During Emergency Medicine Residency Training. JAMA Internal Medicine, 177(5), 651. https://doi.org/10.1001/jamainternmed.2016.9616

    Mueller, A. S., Jenkins, T. M., Osborne, M., Dayal, A., O’Connor, D. M., & Arora, V. M. (2017). Gender Differences in Attending Physicians’ Feedback to Residents: A Qualitative Analysis. Journal of Graduate Medical Education, 9(5), 577–585. http://www.jgme.org/doi/10.4300/JGME-D-17-00126.1

    Additional studies we talked about

    MRI study about political views- evaluated how individuals with definitive political views may process contradictory information differently than individuals with more flexible mindsets.  Kaplan, J. T., Gimbel, S. I., & Harris, S. (2016). Neural correlates of maintaining one’s political beliefs in the face of counterevidence. Scientific Reports, 6, 39589. Retrieved from http://dx.doi.org/10.1038/srep39589

    Thoracic surgery study that suggests that male surgical fellows may actually receive more advanced operative experience than their female matched peers

    Meyerson, S. L., Sternbach, J. M., Zwischenberger, J. B., & Bender, E. M. (2017). The Effect of Gender on Resident Autonomy in the Operating room. Journal of Surgical Education, 74(6), e111–e118. https://doi.org/10.1016/j.jsurg.2017.06.014

    JAMA study perceiving gender differences in implicit bias in academic medicine

    Jagsi  R, Griffith  KA, Jones  R, Perumalswami  CR, Ubel  P, Stewart  A.  Sexual harassment and discrimination experiences of academic medical faculty.  JAMA. 2016;315(19):2120-2121. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5526590/

    The Influence of Testosterone and Cortisol on Decision Making, With Neuroscientist Dr. John Coates

    The Influence of Testosterone and Cortisol on Decision Making, With Neuroscientist Dr. John Coates

    Show Notes for Podcast Eight of seX & whY

    Host: Jeannette Wolfe

    Guests: Dr. John Coates

    Topic: The Influence of Testosterone and Cortisol on Decision Making, With Neuroscientist Dr. John Coates

    Dr. John Coates is a neuroscientist and author of The hour between dog and wolf- how risk taking transforms the body and mind.  He is an ex-trader and now runs Dewline Research. He studies how subtle unconscious changes in an individual’s physiology can shift their decision making and is particularly interested in the roles of testosterone and cortisol.  He is specifically focused on how the fluctuation of these hormones might influence volatility in the stock market. As it appears that both successful traders and emergency medicine are required to make high impact decisions in novel and often unpredictable situations, I think there is much we can learn from his work and I am thrilled he could join us for this discussion.

    Before we delve in, I’d like to remind folks that my interest in this material is to better understand how individuals and teams can optimize their performance under stress. The material we are covering in this podcast- the possible influence of sex hormones on decision making- is undoubtedly going to make some listeners uncomfortable. I truly believe, however, that this topic is important and deserves an honest and curious appraisal. To be absolutely clear, I do not believe that there is a better sex equipped with a better brain, rather that there are simply different neurobiological ways that different brains use to approach and complete similar tasks. My goal here, is for us to develop better insight into how we individually react under different high stress scenarios. Hopefully, we can then use this information to explore new ways to play up our individual strengths and mitigate potential vulnerabilities. Let’s get started.

    Over the years, Dr. Coates and his team have  conducted some pretty interesting “field work” studies especially his 2008 study on London short traders. In that study his team took twice daily saliva samples in 17 male traders over an 8 day period and found:

    • Both cortisol and testosterone levels varied greatly throughout the study
      • Mean daily cortisol levels increased as much as 400%
      • Afternoon cortisol levels increased as much as 500% (in an unstressed individual cortisol typically peaks in the early morning.)
    • Elevated AM testosterone levels correlated with afternoon profitability
    • Elevated cortisol levels correlated with market volatility (but interestingly not with simple losses)

    Since then he has done several additional studies and concludes that the only way to really understand the bubbles and crashes of the stock market is by better understanding the human physiology of the traders.  Here are some of his take home points.

    • An individual’s risk preference is probably far more dynamic than previously believed and is impacted by subtle, unconscious, shifts in physiology
    • Individuals can have different risk preferences in different domains (participate in dangerous hobbies but are conservative with their finances)
    • Individuals with increased interoceptive awareness may be quicker to recognize anomalous blips of data buried within piles of “expected” information. This may contribute to the phenomenon of a “gut instinct”
    • Hormonal fluctuations likely contribute to risk preferences
      • Increasing testosterone levels likely shifts risk preferences to make individuals more open to riskier endeavors
        • Young males in competitive situations may be particularly vulnerable as they have significantly higher levels of baseline testosterone than women and older men
        • This risk shift is likely even more dramatic in individuals taking unnecessary testosterone supplementation (which is now a 2 billion dollar industry with 2/3 of the individuals who use testosterone not having a medically indicated reason for taking it.)
      • Increasing cortisol levels (in particular chronically increased levels) likely shifts risk preferences in the opposite direction and makes individuals act more risk adverse.
      • As these hormonal shifts are occurring unconsciously, it is difficult for individuals themselves to recognize their behavioral shift and depending upon the situation external safeguards (perceptive team members, monitoring systems) could be helpful.

      

     “Winner’s Streaks”

    - In the research community there is still some controversy as to whether this phenomenon even exists or if such streaks simply represent statistical outliers that are selectively remembered due to their unusualness.

    - Coates strongly believes that winner’s streaks are real and are crucial to understanding behavior under certain circumstances.

    - There is good data in the animal kingdom to suggest that if two male animals are in a competition and if their size, motivation (i.e. being hungry versus well fed) and baseline aggression are all controlled, that the animal who wins that encounter will be statistically more likely to go on and win their next competitive encounter.

    Some theories as to why this might occur:

    • Actual competition gives each opponents and idea of how they might stand in future altercations
    • Winners self-perception of their strengths increases, and they become more comfortable with additional confrontation
    • The initial victory may physically increase the winner’s resources allowing it to go into its next encounter with an advantage (i.e. access to more food increases its size)
    • A potential physiological contributor to a winner’s streak may be real time fluctuations in an individuals’ testosterone levels (and possibly a change in the sensitivity of their testosterone receptors). Although many things can cause fluctuations in testosterone levels, two things that appear to consistently elevate it are competition and winning.

    Over a period of time, consistently elevated testosterone levels might offer an advantage by increasing:

    • muscle mass
    • hemoglobin/oxygen capacity
    • confidence, persistence and increased risk taking
    • desire to seek out novelty

    Like most hormones, however, testosterone’s effects likely plot out on an inverted U shape curve in that depending on the circumstances:

    • small increases of testosterone levels might be advantageous as a slight increase in risk tolerance may lead to increased reward
    • at some point, however, risk becomes excessive and becomes a disadvantage
      • in animal research this may lead to:
        • patrolling of unrealistically large areas
        • increasing exposure to dangerous situations
        • increasing fighting
        • neglecting parental duties
        • loss of energy stores
      • Research in humans shows that increasing testosterone levels
        • Increases risk preference
        • Quickens reaction time
        • Defaults to automatic thinking
      • In high levels, especially if given exogenously can lead to
        • Euphoria
        • Mania
        • Impulsivity
        • Sensation seeking

     

    Specific research done by Coates and his team

     

    Tennis experiment

    Question addressed: Are “winning streaks” a real phenomenon or simply statistical outliers?

    What they did- Looked at large data base of historical tennis matches in which players who were similarly ranked went into an extended tiebreaker involving more than 20 points in the first set and in which the winner was determined by only two points. (They did this to essentially try and show that on the day of their competition that not only were both players similarly ranked but that they were also playing at a similar level- i.e. both were having a “good day”)

    Results- Men (N=235 matches) who won their first set were 60% more likely to win second set but no significant difference in second set victory was found amongst women (N= 140), suggesting that this might be driven by testosterone as women have about 5-10% level of men. 

     

     

    Cortisol study

    In this study Coates and his team were interested in how an acute and a chronic elevation in stress hormones might affect risk preference. Using data from one of their previous studies which showed that during a period of increased market volatility that traders had a 68% increase in their daily cortisol levels, they went back to the lab to try and replicate this finding and then test decision making in a more controlled environment.  

    What they did: randomized double-blind placebo controlled cross over-study involving 20 men and 16 women. In treatment arm, volunteers were given weight- based hydrocortisone 3x a day for 8 days to mimic cortisol increases seen in traders. All participants played a lottery style game in which they could choose an option in which they had a lesser chance of winning but a higher pay out if they did, or a less risky option in which they had an overall increased chance of winning but at a lower expected payout. The game was played after acute and chronic dosing.  

    Findings- they did not find a difference in risk preference amongst volunteers after they received their initial hydrocortisone (as an aside, the literature on risk preference after acute cortisol increase is somewhat inconsistent) but in this study they did find that after 8 days of taking exogenous steroids that individuals became much more risk adverse and that men were affected more so than women.

     

    Thoughts as to why chronically elevated steroids change our decision making

    • Physical changes occur in the hippocampus that impair normal functioning (neurogenesis is suppressed and dendritic spines are reduced )
    • Similarly, changes also occur in the prefrontal cortex
      • Negatively affect working memory
      • Decrease attentional control
      • Impair behavioral flexibility
    • The amygdala, on the other hand, revs up, causing increased dendritic connections and increase corticotropin releasing hormone gene expression

     

    • Bundled all together this may lead to:
      • Increased focus on imagined threat
      • Increased risk of anxiety, depression, and learned helplessness
      • Shift to habitual behavior and decreased motivation to try novel action

     

    Using this data, Coates theorizes that prolonged periods of financial uncertainty in the stock market likely cause traders’ cortisol levels to increase and stay increased leading to an aversion to risk or an “irrational pessimism” that left unchecked can lead to a bear market.

     

    Finally, attached below is a reference to a recent review article that Dr. Coates wrote summarizing his theories as to the relationship between cortisol and testosterone on bull and bear markets and emphasizing the importance of field work in scientific discovery and refinement. 

     

    To learn about some complementary research being done at Wharton check out this interview with Gideon Nave and Amos Nadler in which they discuss their recent work evaluating decision making in men using exogenous testosterone. They found that that although certain cognitive functions appeared unaffected (like doing math problems), men who were given testosterone gel were more likely to rely on their gut instinct when answering questions. Which, again, depending upon the circumstances could be potentially helpful or harmful.

     

    Coates, J. M., & Herbert, J. (2008). Endogenous steroids and financial risk taking on a London trading floor. Proceedings of the National Academy of Sciences of the United States of America, 105(16), 6167–72. https://doi.org/10.1073/pnas.0704025105

    Kandasamy, N., Hardy, B., Page, L., Schaffner, M., Graggaber, J., Powlson, A. S.,Coates, J. (2014). Cortisol shifts financial risk preferences. Proceedings of the National Academy of Sciences of the United States of America, 111(9), 3608–13.

    Page, L., & Coates, J. (2017). Winner and loser effects in human competitions. Evidence from equally matched tennis players. Evolution and Human Behavior. https://doi.org/10.1016/j.evolhumbehav.2017.02.003

    Coates, J., & Gurnell, M. (2017). Combining field work and laboratory work in the study of financial risk-taking. Hormones and Behavior, 92, 13–19. https://doi.org/10.1016/j.yhbeh.2017.01.008

    seX & whY Episode 7 Part 2: Sex and Gender Differences in Concussions

    seX & whY Episode 7 Part 2: Sex and Gender Differences in Concussions

    Show Notes for Podcast Seven of seX & whY, Part 2

    Host: Jeannette Wolfe

    Guests:

    Dr. Neha Raukar, Emergency and Sports Medicine Physician

    Katherine Snedaker, Executive Director of Pink Concussions

    Topic: Sex and Gender Differences in Concussions

    This is part II of our discussion about concussion with Katherine Snedaker and Neha Rauker.

    Today’s podcast focuses on recovery and prevention.

    Here are the take home points:

    • Concussion research is rapidly changing, and it is important to stay up to date on the literature
      • There is a large NCAA study whose results should be released soon
    • Concussion treatment has to be individualized as symptoms can vary tremendously both within and between the sexes. Overall, however, women appear to be at greater risk for having an increased clustering of symptoms and a prolonged recovery
    • Cocoon therapy (being isolated in a dark room with no stimulation) is out and has been replaced by the concept of “relative rest” which is the idea that you can do activities that don’t exacerbate symptoms
    • Screen time has pros and cons
      • Cons
        • the contrast of light between the screen and the environment and scrolling can lead to vestibular irritation
        • Much of the activities associated with “screen time” also increase cognitive demands
      • Pros
        • It often helps people stay connected with their social circles which can decrease feelings of isolation and depression
      • The new FDA blood test does not test whether or not someone has a concussion, it tests for specific proteins (UCH-L1 and GFAP) that are released by the brain into the blood after a severe injury and correlates with the likelihood of finding an intracranial bleed on CT.
      • Prevention research and intervention targets multiple different levels including:
        • Overall awareness
        • Equipment- both in design and in proper fit
        • Training of coaches/trainers
        • Rule Enforcement
        • Locker room culture
      • Although sports related concussions get the most press, traumatic brain injuries lead to more than 2.8 million (2013 CDC data) emergency visits per year with car accidents, physical assaults and falls being big contributors.
      • There is currently a large gap in treatment access and ownership for non-sports related TBI

    Thank you again to my guests!

    seX & whY Episode 7 Part 1: Sex and Gender Differences in Concussions

    seX & whY Episode 7 Part 1: Sex and Gender Differences in Concussions

    Show Notes for Podcast Seven of seX & whY, Part 1

    Thank you for Alyson McGregor for correctly pointing out that although the NIH, as of January 2016, does require its basic scientists to include both males and female animals in their grant proposals it is not called the “Research for All Act”. The Research for All Act of 2014 is actually a bill sponsored by Congressman Jim Cooper of Tennessee that would require, among other things, that the FDA have access to subgroup analysis of data by sex prior to granting expedited approval of a new product. As of now, this bill has not passed.

    Host: Jeannette Wolfe

    Guests:

    Dr. Neha Raukar, Emergency and Sports Medicine Physician

    Katherine Snedaker, Executive Director of Pink Concussions

    Topic: Sex and Gender Differences in Concussions

    Take home points

    • The research behind traumatic brain injury is rapidly evolving as technology advances are allowing us to better understand how the human brain works and the nuances between male and female brains
    • We still have a long way to go because most of the basic science surrounding traumatic brain injury has been conducted on male animals
      • In 2015 the NIH passed The Research for All Act that requires NIH funded basic science to include both male and female animals or be able to justify their exclusion
    • Men, compared to women, have an overall greater incidence of traumatic brain injury and this is likely associated with differences in risk tolerance and exposure to activities associated with potential injury
    • In situations in which risk exposure is the same- like playing basketball or soccer- after sustaining the same impact, women appear to have a lower neurobiological threshold to obtain a traumatic brain injury than men
    • Definitive/proportionate reasons for these differences are not fully understood, however possible factors include:
      • Weaker neck muscles
      • Decreased neurobiological threshold for injury
      • Hormonal differences
      • Reporting bias- this theory is quite controversial and it was emphasized throughout the podcast that many athletes, especially at elite levels- will underreport symptoms regardless of their biological sex
    • Hormonal influences- it appears that a woman’s vulnerability to traumatic brain injury may vary depending upon where she is within her menstrual cycle (with injury during the luteal phase leading to increased concussive symptoms) or whether or not she is on oral contraceptives (with some evidence that women on OCPs having decreased symptoms).
    • Symptoms of concussion can be broken down into different categories:
      • Cognitive- issues with memory/concentration/fogginess
      • Emotional- anxiety, irritability/sadness
      • Somatic- headaches/ light noise sensitivity/nausea and vomiting
      • Vesitibular/Ocular- balance, eye tracking
      • Sleep

    References:

    http://www.pinkconcussions.com/science/concussion-info/

    Collins, C.L., Fletcher, E.N., Fields, S.K. et al. Neck Strength: A Protective Factor Reducing Risk for Concussion in High School Sports J Primary Prevent (2014) 35: 309. https://doi-org.ezproxy.library.tufts.edu/10.1007/s10935-014-0355-2

    Covassin T, Moran R, Elbin RJ. Sex differences in reported concussion injury rates and time loss from participation: an update of the National Collegiate Athletic Association Injury Surveillance Program from 2004-2005 through 2008-2009J Athl Train. 2016;51:189-194.

    Wilcox, B. J., Beckwith, J. G., Greenwald, R. M., Raukar, N. P., Chu, J. J., McAllister, T. W., … Crisco, J. J. (2015). Biomechanics of head impacts associated with diagnosed concussion in female collegiate ice hockey players. Journal of Biomechanics, 48(10), 2201–2204.

    Wunderle K, Hoeger KM, Wasserman E, Bazarian JJ. Menstrual phase as predictor of outcome after mild traumatic brain injury in womenJ Head Trauma Rehabil. 2014;29:

    seX & whY Episode 6: New Rules for Women

    seX & whY Episode 6: New Rules for Women

    Show Notes for Podcast Six of Sex & Why

    Hosts: Jeannette Wolfe and Dr. Anne Litwin PhD

    Topic: New Rules for Women

    In this episode, Dr. Anne Litwin PhD joined me to discuss the findings of her book New Rules for Women. This book highlights the results of her extensive research on the challenges women can face when working with other women in a professional environment. Dr. Litwin, through her in-depth interviews of women across the globe and working in different industries, began to notice a pattern of expectations or so called “friendship rules” that women often carry into the workplace and innocently set them up for inevitable conflict.

    The key components of the rules are as follows:

    • Equality
    • Loyalty
    • Listening
    • Sharing Confidences

    The real kicker, however, is that it is actually considered taboo to talk about them.  Litwin claims that as these rules are so deeply ingrained into females as young girls, that by the time they enter the workplace they are simply assumed truths.

    These rules set up a catch 22 as the very nature of most work environments is competitive and hierarchical. As such, women may often find themselves in positions in which they are not “equal” and not able to unconditionally back each other up. The result is that the friendship rules will predictably get broken and if unchecked, potentially leave women feeling unsupported, backstabbed or disillusioned with other women.

    Fortunately, there are a few suggestions to better manage these relationships.

    • Break the taboo and actual talk about the inevitable catch 22 of women working together.
    • Make a commitment to resist the temptation of indirect aggression and agree to handle conflict in a direct fashion.

    Some suggested wordsmithing:

    you are a strong woman and I want to support you, there are going to be times when due to our different job descriptions that we will inevitably face conflict, I ask that when this happens that we agree to work through them in a professional respectful manner so that we can continue to support each other and do our jobs to the best of our abilities.”  

    as we have different roles, there are going to be times in which I am going to have to put on my “professional” hat to do my expected job. To avoid confusion or misunderstanding, I will try and be as transparent as possible when I need to adopt that role.”

    • Pre-empt anticipated conflict such as:
      • competition for promotion
      • predicted disagreement during meeting
      • hierarchical roles on a team under stress

    Try to discuss expectations up front and identify new ways, understanding the above constraints, in which you can continue to support each other.

    • Recognize and address blooming dysfunction early on (though it is usually helpful to wait until the emotional sting of a situation has passed). This helps to avoid the “stockpiling” of perceived wrongs and to hopefully realign the relationship.
    • Double check perceptions, it is possible that a woman may be acting in a way that is constrained by an organizational system and not necessarily their preferred choice.
    • In teams, be clear about the shared goals of the team and delineate specific ways in which members of the team are expected to behave and communicate to fulfill these goals.

    Resources

    Anne Litwin's New Rules for Women

    Joyce Benenson's Warriors and Worriers

    Douglas Stone's Thanks for the Feedback

    Check back in mid-March for the release of my “X- the Skidmark Talk”  from the archives of the 2017 Feminem FIX national meeting.

    seX & whY Episode 5 Part 3: Stress Response

    seX & whY Episode 5 Part 3: Stress Response

    Show Notes for Podcast Five of Sex & Why

    Host: Jeannette Wolfe
    Guest Host: Justin Morgenstern

    Topic: Stress Response - Part 3

    Tricks for optimizing performance under stress

    Preloading

    • Over train and begin to focus on how to recover from mistakes
    • Invest in mindfulness
      • Meditate
        • Increases your awareness of your own physiological stress response
        • Can help you train to go back and forth from narrow to broad focus
      • Be Awed
        • Have gratitude for what is going right
      • Use a transition mantra as you walk into work and move from your personal to your professional life
      • Appreciate the power of emotional contagion
        • Your mood influences your team’s performance
        • Acknowledge and celebrate team’s saves and successes
      • Create safe communities in which you can talk and walk through difficult cases without shame or judgement
    • Maximize environmental advantages
      • Have the right equipment and know where it is 

    In the moment

    • When you are becoming aware of stress- acknowledge its presence and recognize that you can face it as a threat or a challenge and then deliberately and emphatically choose challenge
    • Chunk down overwhelming situations into immediate next actions, when in doubt go to the head of the bed and check oxygen connections and monitor leads
    • Access mental crutches- simple pneumonics, resource cards, or a favorite app to jumpstart your thinking until your frontal lobe comes back on line
    • Consider cognitive reframing and brief emotional detachment
    • Keep a talisman in your pocket- use for either spiritual strength or physical distraction
    • Use Mike Lauria’s pneumonic BTSF (Beat The Stress Fool)
      • Breath
        • Tactical breathing and controlling the breath
      • Talk
        • Positive self-talk
      • See
        • Visualize successful completion of the task
      • Focus
        • Use a trigger word
      • Tips for breathing
        • Consciously slow your exhalation
        • Belly breath in which your abdomen expands with inhalation
      • Armor for negative thoughts
        • Thank your brain for trying to keep you safe
          • “Thank you brain for trying to watch my back, but I’ve got this”
        • Recognize your thoughts as being “just thoughts”
          • Change “I can’t do this” to “I’m having a thought that I can’t do this and fortunately most of my thoughts don’t equate actual reality”
        • Identify and label your patterns
          • “oh yay, I do this sometimes when I get stuck, but I can choose to do X, Y or Z instead” (repeating if needed.)
        • Internally shout at yourself (to snap out of an internal loop) and then remind yourself that you are trained and capable
        • Repeat a repetitive negative thought in a strange accent
        • Sing a repetitive negative thought
        • Refer to yourself as a third person
        • Touch something in front of you and describe its shape/temperature and texture
        • Acknowledge that you are stressed but decide to just do it anyways
      • Tricks for focus words
        • Consider single word describing next critical action (“drape”, “needle”)
      • After the stressful event
        • Anticipate parasympathetic backlash
        • Consider cognitive offloading
          • Have a check list
          • Use time outs
            • Creates a shared mental model of critical actions
            • Allows for information exchange
            • Reinforces value of team
          • Appreciate that cortisol spiking may subtly shift your tolerance for risk and could potentially impact clinical decision making
          • Take a break
            • Eat and drink something (preferably without caffeine)
            • Emotionally recharge
          • After the shift
            • Work Out
            • Play Tetras- (this was a new one for me and I’ve attached a reference below)

     

    Selected Resources

    Meditation App- Insight Timer

    Justin Morgenstern’s Performance Under Pressure blog: https://first10em.com/2017/03/13/performance-under-pressure/

    Adrian Plunkett’s SMACC talk https://www.smacc.net.au/2017/02/learning-from-excellence/

    Recent Tetra study: Horsch A, et al: Reducing intrusive traumatic memories after emergency caesarean section: A proof-of-principle randomized controlled study. Behaviour Research and Therapy, 2017 https://doi.org/10.1016/j.brat.2017.03.018

    Lauria, M. J., Gallo, I. A., Rush, S., Brooks, J., Spiegel, R., & Weingart, S. D. (2017). Psychological Skills to Improve Emergency Care Providers’ Performance Under Stress. Annals of Emergency Medicine. https://doi.org/10.1016/j.annemergmed.2017.03.018

    Parkin, B. L., Warriner, K., & Walsh, V. (2017). Gunslingers, poker players, and chickens1 :Decision making under physical performance pressure in elite athletes. Progress in Brain Research (1st ed., Vol. 234). Elsevier B.V. https://doi.org/10.1016/bs.pbr.2017.08.001

    Markway B, Stop Fighting your Negative Thoughts, Psychology Today May 7 2013 https://www.psychologytoday.com/blog/shyness-is-nice/201305/stop-fighting-your-negative-thoughts  

     

    seX & whY Episode 5 Part 2: Stress Response

    seX & whY Episode 5 Part 2: Stress Response

    Show Notes for Podcast Five of Sex & Why

    Host: Jeannette Wolfe

    Topic: Stress Response

     

    For Acute Care Medicine and Introduction to Sex and Gender Based Medicine CME Cruise Opportunity click here

     

    Part 2 on biological sex differences in the stress response with special guest Justin Morgenstern

    We started out with a discussion on different ways to frame potential sex and gender based research using a method described by  Dr. M McCarthy

    A full discussion of this framework can also be found on my website

    McCarthy MM et al, The Journal of Neuroscience: the official journal of the Society for Neuroscience. 2012;32(7):2241-2247.

    There appears to be a significant amount of individual variation in how some individuals respond to and recover from similar stresses. Some of these differences may be influenced by our biological sex. Understanding how we react and respond to stress and how this may perhaps differ from other individuals around us may help us better communicate and lead under stressful situations.

    Study #1

    This was a follow up study to an infamous study the same team did three years before in which they looked at sex differences in reward collection on a computer balloon game (Balloon Analogue Risk Task or BART). In this game, players got 30 balloons and the farther they pumped them up the more points they got however, each balloon was also set to randomly pop somewhere between 1- 128 pumps and if the player popped their balloon before they cashed it in they lost points for that balloon. Study participants were randomized to control vs stress condition (placing hand in neutral versus ice water for 3 min) and then played the game. They found that in neutral conditions there was no significant difference in risk taking (number of pumps 39 for women versus 42 for men, but under stress women decreased their pumping to 32 while men increased to 48).

    In this 2012 study, Lighthall’s group adjusted its protocol so that BART could now be played in an MRI scanner. Unfortunately, the new BART design subtly changed the game because now instead of going through 30 balloons, participants played the game for a set amount of time with unlimited balloons. This inadvertently added a second strategy to get lots of points as the new design allowed participants to get points by either pumping additional air into an individual balloon or rapidly moving through a greater number of balloons while pumping only a few pumps per balloon. Stress intervention was again either a cold or neutral temperature water bath and after submersion the researchers collected cortisol samples and scanned participants while they played the game.

    Results- no difference in control conditions (room temp water) between men and women in number of balloon pumps or points earned

    But under stress men acted more quickly and got increased rewards while women appeared to slow down their reaction time and decrease their rewards.

    Men had higher baseline and stimulated cortisol but there was no difference b/w men and women in the amount of cortisol change between baseline and stressed condition.

    Under basic non stress conditions- during the control testing it appeared that overall men and women utilized the same brain regions to complete the balloon task (i.e. suggesting that males and females approach the task by using similar neural strategies), however once stressed men and women seemed to use different areas of their brain. Men used their dorsal striatum and anterior insula more. Anterior insula has been associated with switching tasks from a riskier to a safer option (and in both sexes higher activity in this region correlated with higher collection rate) and the dorsal striatum is believed to be associated with obtaining predictable rewards and with integrating sensory, motor, cognitive and emotional signals.

    Did not find that men had increased risk taking in this study but it may have been masked in that there was now a lower risk strategy available to them that still was associated with an increased reward (pumping balloon a small amount and quickly cashing in to get to next balloon).

    Concept discussed is that under stress men may possible go into type one systemic thinking (automatic) while women may favor type 2 (deliberate cognitive inquiry).

    Lighthall, N. R., Mather, M., & Gorlick, M. A. (2009). Acute stress increases sex differences in risk seeking in the balloon analogue risk task. PloS One, 4(7), e6002. https://doi.org/10.1371/journal.pone.0006002

    Lighthall, N. R., Sakaki, M., Vasunilashorn, S., Nga, L., Somayajula, S., Chen, E. Y. Mather, M. (2012). Gender differences in reward-related decision processing under stress. Social Cognitive and Affective Neuroscience, 7(4), 476–84. https://doi.org/10.1093/scan/nsr026

    Study #2: 

    Goal to determine if:

    • Under equal subjective sensations of stress (i.e. men and women objectively rate their subjective level of stress the same on a 1-10 point scale) do men and women use the same brain circuitry to process stress or do they use different circuitries.

    What they did:

    • Collect cognitive, psychiatric, and drug use assessments on 55 men and 41 women aged 19-50
      • Exclusions TBI, psychoactive meds, history of substance abuse, preg, DSM-IV mental health disorder and currently menstruating or oral contraceptive use (to try and mitigate additional hormonal influences)
    • Over course of 2-3 sessions put them into a MRI scanner and asked them to visualize neutral or stress inducing images (this technique has previously been validated and involved the subjects own audiotaped accounts of stressful –rated as greater than 8 on 1-10 Likert scale- or neutral experience) which was later played back to them in MRI scanner
    • Asked them to rank their level of stress
    • Looked to see which areas of the brain lit up under different conditions

    Results

    Men and women appeared to have different strategies for guided visual tasks in general regardless of whether listening to neutral or stressful recordings:

    Men:

    More likely to light up areas associated with motor processing and action.

    Caudate, midbrain, thalamus, and cingulate gyrus and cerebellum

    Women:

    More likely to light up areas associated with visual processing, verbal expression and emotional experience

                Right temporal gyrus, insula and occipital lobe

    Women were also more likely to increase their HR regardless of condition (likely from having increased autonomic arousal- though other studies suggest that women have increased HR at baseline compared to men in general)

    Under stress men and women had firing in opposite directions:

    Men dampened while women increased firing in:

    Dorsal Medial pre-frontal cortex, parietal lobes (including inferior parietal lobe and precuneus region) left temporal lobe, occipital area and cerebellum.

    Believed functions of these different regions

    Dorsal medial frontal cortex – executive functioning of cognitive control, self-awareness of emotional discomfort, strategic reasoning, and regulation

    Precuneus- part of the parietal lobe associated with self-referential and self-consciousness

    Inferior parietal lobe- cognitive appraisal and consideration of response strategies (also area often associated with mirror imaging)

    Left temporal gyrus- processes verbal information

    Occipital area- processes visual information

    Cerebellum- besides coordinating motor movement also is involved in emotional and cognitive processing 

    “Taken together, the observed differences in these regions suggest that men and women may differ in the extent to which they engage in verbal processing, visualization, self-referential thinking, and cognitive processing during the experience of stress and anxiety.”

    They also suggest that under stress men may feel anxious due to “hypoactivity” while women may feel stress due to “hyperactivity” in above noted regions.

    Conclusion:

    • Men and women use different neural strategies under stress even with similarly reported stress levels

     This research is still clearly in its infancy but suggests that under stress some men, may turn down activity in areas of their brains involved in executive functioning and that this might increase their vulnerability to impulsivity. Conversely, under stress some women may actually turn up activity in these regions that could lead to excessive rumination and possibly depression. The authors then extrapolate their data to suggest that men and women might possibly benefit from different stress reduction techniques in that some men might benefit more from cognitive behavioral therapy which enhances frontal lobe firing and some women from mindful meditation which dampens it. 

    Seo, D., Ahluwalia, A., Potenza, M. N., & Sinha, R. (2017). Gender Differences in Neural Correlates of Stress-Induced Anxiety. Journal of Neuroscience Research, 125, 115–125.

    Study #3

    This study literally looks at what conditions men and women might seek out increased physical interaction with their dog after an agility competition. The background here is that in 2000 Dr. SE Taylor questioned whether the flight of fight response which has classically been described as a “universal” stress response, was actually applicable to both males and females. She questioned how realistic it was for a female who might be physically smaller and less muscular than her male peer to successfully fight or run away from a potential attacker. She suggested an alternative response of “tend and befriend” which suggests that under stress that women may naturally migrate towards their children as well as others within their intimate circle with the belief that a larger group may offer protection and a pooling of resources. Additional support for this theory is the idea that oxytocin, which has receptors throughout the brain and is usually found in higher amounts in women, may be released during this affiliative behavior and help to dampen the physiological cortisol stress response.

    This study was done to see if men and women seek out physical contact with another being (in this case their dog) in similar fashion when they are stressed. They chose to study human contact with a dog versus an interaction with another human to try and mitigate the influence of any “gender expectation” violations. Which in English means that if Rob would normally seek out Carol when he is stressed, he might decide not to do so in public (and in this case being videotaped) because he doesn’t want to appear “less masculine”. As public affection with one’s dog is considered less gender biased, the authors chose this interaction as a marker for affiliative behavior. 

    What they did: Videotaped and took cortisol saliva levels from 93 men and  91 women after they had run their dog through a competitive agility course. Recording and samples were taken as participants waited for their official score (although subjectively most participants pretty much already knew whether or not their dog had scored high enough to move on.) The researchers measured cortisol levels and how much participants petted their dog while waiting for this score.

    Results:

    • 36 of results excluded because dogs did not finish course and were disqualified
    • Overall there was no sex difference in total affiliative behavior
      • Of first 180 seconds of video tape women petted dog on average 27 seconds and men 25 seconds
    • When men and women perceived they lost, their cortisol level increased more than those who perceived they had advanced.
    • Differences occurred however as to when men and women were more likely to pet their dogs
      • Women petted them more when they sensed defeat- an additional 12 seconds compared to women who had won
      • Men petted them more when they sensed victory- an additional 7 seconds when compared to men who had lost

    Conclusions: women sought out affiliative behavior when they lost, men sought it out when they won.

    Justin and I use this paper as a discussion point as to understanding how two people may get exposed to the same stressor and respond quite differently and importantly how they sort of bounce back from a stressful situation may also differ. This paper suggests that emotional debriefing after stressful experiences may be more helpful to some individuals than others.

    For more on the stress response please see Justin’s new post on First10EM

    Sherman G, Rice L, Shuo Jin E, et al: (2017) Sex differences in cortisol’s regulation of affiliative behavior. Hormones and Behavior 92, 20- 28

    seX & whY Episode 5 Part 1: Stress Response

    seX & whY Episode 5 Part 1: Stress Response

    Show Notes for Podcast Five of Sex & Why

    Host: Jeannette Wolfe

    Topic: Stress Response

    This Podcast focuses on the basics of the acute human stress response. Please see Dr Morgenstern’s excellent write up:

    Performance Under Pressure Review: https://first10em.com/2017/03/13/performance-under-pressure/

    Components of stress response

    • Trigger
    • Speed of activation
    • Magnitude of response
    • Time to return to baseline

    Things that affect cortisol response

    • time of day
    • health
    • genetics
    • personality
    • early pre-natal/childhood stressors- epigenetics can change DNA expression
    • current stressors
    • smoking
    • if female- where you are in cycle or use of OCP
    • interaction with testosterone

    Sensation of psychological stress is not always associated with physiological stress (i.e. cortisol stress response)

    Conversely in psychological studies in which subjects get exogenous steroids (i.e take a hydrocortisone pill) although there are often associated behavioral changes from the steroids participants rarely feel anxious.

    Somewhat ironic that women report more psychological stress but that men die on average 7 years earlier

    Things that reliably trigger physiological stress:

     Demands >>> Resources

    • Unpredictability
    • Uncontrollability
    • Novelty

    Learning on stress is U shaped curve

    • A little stress helps things stick more
    • As stress increases harder to draw 

    Some suggested sex differences:

    In general women have higher baseline HR than men (despite this, women are believed to have a higher parasympathetic baseline tone)

    Triggers:

    • Men may be more vulnerable to stressors that trigger dominancy/hierarchy
    • Women may be more vulnerable to stressors that trigger social isolation

    Free Cortisol is the active form and men appear to have higher free cortisol levels

    Women may be more sensitive to acth- similar cortisol level with less trigger.

    Men more likely to respond to threat of hierarchy, women social exclusion

    Stress resiliency:

    Time to respond, magnitude of response time until return to baseline

    To what, how quickly, how much, how long. 

    Studies discussed in podcast

    Alexander, G. M., Wilcox, T., & Woods, R. (2009). Sex differences in infants’ visual interest in toys. Archives of Sexual Behavior, 38(3), 427–33. https://doi.org/10.1007/s10508-008-9430-1

    Ali, Amir; Subhi, Yousif; Ringsted, Charlotte; Konge, Lars. Gender differences in the acquisition of surgical skills : a systematic review. /I: Surgical endoscopy, Vol. 29, Nr. 11, 11.2015, s. 3065-3073.

    Deane, R., Chummun, H., & Prashad, D. (2002). Differences in urinary stress hormones in male and female nurses at different ages. Journal of Advanced Nursing, 37 , 304–310.

    Shane MD, Pettitt BJ, Morgenthal CB, Smith CD (2008) Should surgical novices trade their retractors for joysticks? Videogame experience decreases the time needed to acquire surgical skills.
    Surg Endosc 22:1294–1297

    Theorell Tores, On Basic Physiological Stress Mechanisms in Men and Women: Gender Observations on Catecholamines, Cortisol and Blood Pressure Monitored in Daily Life. Psychosocial Stress and Cardiovascular Disease in Women, DOI 10.1007/978-3-319-09241-6_7  Published 2015 pp 89-105

    Turecki, G., & Meaney, M. J. (2016). Effects of the Social Environment and Stress on Glucocorticoid Receptor Gene Methylation: A Systematic Review. Biological Psychiatry, 79(2), 87–96. https://doi.org/10.1016/j.biopsych.2014.11.022 

    Yael, Sofer, et al. "GENDER D. S. F. C. H. L. I. M. . E. P. (2016). (2015). Original Article GENDER DETERMINES SERUM FREE CORTISOL: HIGHER LEVELS IN MEN EP161370.OR. Endocrine Practice. https://doi.org/10.4158/EP161370.OR 

    White MT, Welch K (2012) Does gender predict performance of novices undergoing fundamentals of laparoscopic surgery (FLS) training? Am J Surg 203:397–400

     

    seX & whY Episode 3: Priming and Performance

    seX & whY Episode 3: Priming and Performance

    Can unconscious cues cause changes in behavior and performance? Can subtle cues can affect behavior and team performance? 

     

    Show Notes for Podcast Three of Sex & Why

     “Behavior” Pod

    Hosts: Jeannette Wolfe and Simon Carley

    Topic: Unconscious Bias

    Major Question: Can unconscious cues cause changes in behavior and performance?

    Riskin Study

    Examined the effect of rude statements on team diagnostic and procedural performance.

    What they did: Had NICU providers (nurses and doctors) first go through a simulation and then attend a workshop on team “reflexivity” (i.e. team training). The workshop was taught by a neonatologist who said that he was “collaborating” with an American expert who was ostensibly watching via webcam.

    At the end of the workshop, the coordinating neonatologist told the teams that the expert wanted to greet them and he then “dialed” up the expert (in reality this triggered a prerecorded message). The groups were randomized to hear either a neutral message in which the expert commented that he had been working with a lot of Israeli hospitals, or a rude message in which the expert commented that he had “observed a number of groups from other hospitals in Israel and compared with the participants he had observed elsewhere, he was not impressed with the quality of medicine in Israel.” 

    Both groups then underwent a standardized written and procedural simulation case involving a neonate with rapidly progressing necrotizing enterocolitis. Ten minutes into the simulation the American “expert” spoke again with the control group hearing another neutral comment and the rude group hearing that although the expert liked some of what he saw during his visit to Israel that he hoped that he would not get sick in Israel and implied that most “wouldn’t last a week” in his own department. The teams then continued to complete the case.

    The simulations of both the control and rude teams were then evaluated by blinded observers who reviewed written documents and team videos. Participants were rated on diagnostic performance, procedural performance, information sharing and help-seeking.

    Results: 33 NICU providers were randomized to control group and 39 to rude statement group forming a total of 24 teams.

    Diagnostic and procedural performance along with information sharing and help seeking behavior declined statistically significantly in the rude group. 

    Table 1

    Statistically significant differences in procedure performance

    Procedure

    Control-neutral phone calls

    Mean (1-5 scale)

    Intervention- rude phone calls

    P value

    resuscitation performed well

    3.05

    2.49

    .002

    Verified tube placement well

    3.56

    2.85

    .0005

    Ventilated well

    3.43

     

    3.01

    .002

    Asked for right lab tests

    3.78

    3.24

    .01

    Good general technical skills

    3.17

    2.61

    .002

    Overall procedure

    3.26

    2.77

    .0002

    Table 2

     

    Statistically significant differences in diagnostic performance

     

    Variable

    Control- neutral phone calls

    Intervention-rude phone calls

    P value

    Diagnosed shock

    2.88

    2.08

    .003

    Diagnosed NEC

    3.08

    2.62

    .041

    Diagnosed deterioration

    4.05

    3.54

    .006

    Suspected bowel perf

    2.6

    1.94

    .012

    Diagnosed cardiac tamponade

    3.18

    2.15

    .001

    Overall Diagnostic

    3.18

    2.65

    .0003


    Theory behind findings- At individual level rudeness can impair access to working memory (which is important for analysis, planning, and execution) which can then contribute to suboptimal task execution. At the team level, performance is further decreased because less information is shared (potentially limiting diagnostic considerations) and procedures may become more difficult because individuals stop asking for help.

    Ultimately this study suggests that when an attribute (in this case being an Israeli physician/nurse) is challenged, behavior can be impacted. This has huge implications for how physician professionalism can directly affect patient care.

    Shih Study:

    This study is wonderful in its simplicity, it takes individuals who possess two attributes that are associated with opposing stereotypes (in this case Asian and female) and asks if their behavior (performance on a math test) is able to be manipulated depending upon which attribute is subtly cued.

     Shih asked a group of Asian college females to take a math test. Prior to taking the test she randomized the women into three groups.  In the first group, participants were subtly primed to identify with their “female” identity by asking them gender demographics and targeted questions about single sex versus coed dorm living. In the next group, women had their ethnic identity triggered by asking about relatives and languages spoken at home. And in the final group women were asked generic questions that avoided implicit triggering of either gender or ethnic attributes. The measured outcome was accuracy= number of test questions right/number attempted

     Results: Women who had their Asian identity triggered scored highest on the tests, the neutral group scored in the middle and the female identity primed scored the worst with statistical difference (p<.05) between ethnic and female triggered scores.   (Of note, the mean SAT scores for Asian women in the study was 750 with the general average scores that year being 508)

    Importantly in this study results showed:

    * the women were unaware of both the specific attribute that was being primed or the purpose of the study

    * no difference in motivation (i.e. Asian group did not consciously try harder)

    *no difference b/w the three groups in believe of how well they did

    * no difference b/w the three groups in their overall assessment of math competency 

    Maass study:

    This is one of my favorite studies because it objectively shows that subtle gender cues or “primes” can actually trigger significant differences in performance.

    What they did:  had chess players matched by ability level play three games of internet chess. Each pair was composed of a man and women who (unknowingly) played all three games of chess against each other. In the control game, each player was given a gender neutral name, in the second and third games players were given a priming statement about international chess being a male dominated game and that the researchers were evaluating potential contributing factors. Players were then told that in the last two games one game would be played against someone of their same sex and the other played against someone of the opposite sex.

    Results:

    42 pairs of men and women 

    Control game and primed game in which players believed they were playing against someone of same sex- games essentially split (i.e. no statistical difference in who won.)

    Primed game in which women believed they were playing against a man: women lost 75%

    So what happened here? Were men positively primed by information that suggested a natural advantage (receiving a  “stereotype lift”) and then able to play up and crush women? Or conversely, were women underperforming because they were negatively primed (experiencing a “stereotype threat”) and because in their minds the game’s stakes suddenly got raised as their performance would ultimately be compared to the stereotype? Well, the researchers believed that the differences were not because men changed their playing tactics but because women altered their game style. Instead of playing to win (goal directed), they began to play not to lose (failure avoidance) which is actually believed to be a separate motivational system. Ironically, playing more cautiously actually caused women to lose more games.

     Discussion:

    What we can learn from these studies: Subtle cues can affect behavior and team performance. Unconscious bias is real and there are ways to mitigate it.

    What is unconscious bias?

    - A deeply rooted subliminal belief that reinforce the norms of the dominant majority within a society

    - May be at odds with conscious beliefs

    - Is ubiquitous (affects both men and women)

    Priming

             A cue that triggers either a conscious or unconscious awareness of a specific attribute and that can subsequently affect behavior positively, negatively or not at all.  

    Priming variables:

    Specific situation

    Salience of prime:  blatant, subtle or simply “in the air” (ubiquitously present) 

    Number of different attributes being triggered (gender versus gender and race)

    Who is triggering threat (self, in group, outgroup)

    If threat is directed specifically toward self or larger group

    If threat is believed to be “fixed”- (this comes out of Carol Dweck’s  Mindset work in which individuals who have a fixed mindset believe that certain abilities are innate and you either have them or don’t, versus a “flexible” mindset in which it is believed that abilities can be obtained through deliberate and consistent effort)

    *** Somewhat ironic, stereotype threat appears to be most powerful in individuals who have deep associations with the specific triggered attribute and in those who are most motivated to do well.

     (Hoyt 2016)

    Examples of priming:

    Asking demographics before testing

    Comment about lack of diversity when you are only individual with specific attribute at meeting

    Adverse effects of stereotype threat-

    • Underachievement

    -   Loss of confidence

    -   Disengagement/Avoidance

    -   Adoption of “reactance” response, purposefully acting directly opposite of the expected stereotype (this may or may not be adaptive depending on situation i.e. blatantly priming can trigger a I-see-what-you-are-doing-and-I’m-not-going-to-let-you-get-away-with-it performance boost, or it can backfire as seen in some studies in which women try to negotiate similarly to men.

    Theories as to why there are behavioral changes associated with unconscious bias and stereotype threat:

    • Physiological stress- decreasing working memory
    • Increasing anxiety
    • Increasing thought intrusion
    • Overthinking previously automatic behavior

    Ways to decrease stereotype threat

    For individuals

    • Simply recognize
      • Understanding that situational anxiety may reflect stereotype threat and not incompetence (Maas study showed that under right mindset women could perform on par with men.)
    • Separation of attribute from task
      • “X” is challenging for everyone no just people with specific trait
    • Identify with individuals with same attribute who have been successful
      • Demonstrate that success is possible
      • Buffers threat (though in certain cases can backfire if the individual cannot realistically identify with the role model leading to feelings of inadequacy.)
    • “Positively” prime yourself
      • Remember a personal experience that was associated with professional success
    • Consciously embrace a flexible mindset

    For organizations

    • Validation that individual is qualified to do task
    • Create external environmental cues that welcome inclusion and create “identity” safe environment
      • Encouraging people to volunteer for “easy” leadership opportunities, emphasizing no experience is needed
      • Emboldening jr residents to step up to care for critical patients reminding them they will receive appropriate back up if needed
    • Commit to breaking down silos- in medicine this is critically important, as different identity groups often take potshots at each other which can ultimately lead (at least in medicine) to decreased collaboration and increased medical errors
      • it should not be “us versus them” rather “us with them to take care of patients”.
    • Increase diversity- having a single individual with a specific trait in a group is quite different than having several other group members also share that same trait. When there is just a single individual, other group members may unconsciously process that individual’s suggestions as being aligned with or opposed to associated stereotype versus seriously considering its stand-alone legitimacy.

    _________________________

    More Specific Gender Examples

    Gender examples:

     (Murphy 2007) women attending a major STEM conference in which gender imbalance was subtly primed felt isolated and disengaged at meeting

    (Cheryan 2009) Stated interest in computer science decreased if women were exposed to a stereotypical male computer science environment (room with Star Trek poster and video games) than if exposed to more gender neutral space. 

    -   Distancing self from identification of attribute (women being unsupportive of other women)

    Success story of positive priming

    Harvey Mudd College’s computer science experience

    Maria Klawe, president of Harvey Mudd University wanted to increase gender balance amongst computer science majors so she did three things

    • Affirmation
      • Personally contacted high potential female students women who were accepted into Harvey Mudd
    • Created enhanced opportunity in non-threatening environment
      • Required every freshman to take a computer science class but importantly divided students into two classes depending upon whether or not they had had previous experience (thus avoiding having novices feel out of their league if seated next to an expert)
    • Promoted exposure to role models
      • Invited women considering a computer science major to attend the national Grace Hopper conference so that they young women had first hand exposure to successful women programmers.
    • Results: Harvey Mudd increased percentage of female programmers from less than 15% to 40%

     

    To test you own unconscious gender bias go to https://implicit.harvard.edu/implicit/user/agg/blindspot/indexgc.htm

    Cheryan, S., Plaut, V. C., Davies, P. G., & Steele, C. M. (2009). Ambient belonging: how stereotypical cues impact gender participation in computer science. Journal of Personalityand Social Psychology, 97(6), 1045–60. http://doi.org/10.1037/a0016239

    Hoyt C, Murphy S: Managing to clear the air: Stereotype threat, women, and leadership. The Leadership Quarterly Vol 27, Issue 3 June 2016 pp 387-399

    Maass, A., & Ettole, C. D. (2008). Checkmate ? The role of gender stereotypes in the ultimate intellectual sport, 245(April 2007), 231–245. http://doi.org/10.1002/ejsp

    Riskin, A., Erez, A., Foulk, T. A., Kugelman, A., Gover, A., & Shoris, I. (2015). The Impact of Rudeness on Medical Team Performance : A Randomized Trial, 136(3).

    http://doi.org/10.1542/peds.2015-1385

    Shih, Margaret, Pittinsky, Todd L and Ambady, N. (n.d.). Stereotype Susceptibility: Identity Salience and Shifts In Quantitative Performance. Psychological Science January 1999 vol. 10 no. 1 80-83

    • Wayne N, Vemillion M, Uijtdehaage S, Gender differences in leadership amongst first-year medical students in the small-group setting Academic Medicine, 85 (8) (2010), pp. 1276–1281

    Harvey Mudd Experience (NY Times April 2, 2012) http://www.nytimes.com/2012/04/03/science/giving-women-the-access-code.html?_r=0

     

    seX & whY Episode 2: Code Leadership and Gender

    seX & whY Episode 2: Code Leadership and Gender
    Show Notes for Podcast Two of seX & whY Code Leadership and Gender “Behavior” Pod Hosts: Jeannette Wolfe and Simon Carley Major Question: Are there potential unique gender challenges associated with stepping into traditional code leadership roles? What we know- importantly there is no evidence that men and women differ in competence of running actual resuscitations (Wayne 2012). This discussion is based on whether unique gender associated variables should be considered when learning and then running resuscitations. Streiff Study This study looked at a code simulation run by randomized groups of three Swiss fourth year medical students. Before participating in the simulation, students filled out basic demographic information and then took tests that evaluated for certain personality traits and for basic resuscitation knowledge and experience. The authors main objective was to see which variables were associated with code leadership by using “leadership statements” as a surrogate marker.  Leadership statements were statements made by participants that could be categorized into one of four areas: what should be done; how it should be done; who should do it; direction/command to another person that prompted action or change of action. Results: 237 students Variables that were associated with leadership statements were: Male sex, extraversion and low scores on agreeableness personality trait. Factors not associated with leadership statements were: height, experience or(most concerningly) fund of knowledge. Study implications:
    • Individuals with the most knowledge might not actually be the ones taking charge/ speaking up in critical situations
    • Individuals who are less concerned with typical social conformity (tact, modesty) may be more comfortable stepping up to lead in short term emergencies
    • There are likely gender specific factors that need to be considered when teaching providers to become effective code leaders. (d = 0.38)
    Kolehmainen’s study
    • Qualitative study on resuscitation perspectives
    • 25 residents from 9 internal medicine programs
    • Semi-structured telephone or in-person interviews
    Men and women both shared that effective code leadership was extremely important for patient care and team cohesion and that the most effective code leaders ran codes in a classic “agentic” style (i.e. loud, direct and authoritarian). Women found it much more stressful to step into this style of leadership and were concerned about potential backlash from team members who assumed they were acting “witchy with a b”. The authors contend this is a legitimate concern because when women step into code leadership they are bucking implicit bias around cultural stereotypes that expect men to be more aligned with agentic roles and women to be more aligned with communal ones (i.e. cooperative and soft spoken) Leadership and gender: All participants thought that men and women were equally effective leaders, and both described the same ideal leadership behaviors and their struggles to achieve them. However, the larger majority of female participants expressed their discomfort and stress in acting more assertively during codes. One female participant observed that “tall men with a deep voice may naturally appear more authoritative.” A male participant confirmed this advantage, saying “Anyone who tells you that being a white male with a deep voice who’s a little bit taller is not an advantage … would be lying.” Another female participant said, “I act differently during a code … you’re trying to assume this persona of being in charge and I think that’s probably a little more stressful (for women).” Almost half of the female participants described their apprehension in appearing “bossy” when leading codes, whereas no male participants expressed this concern.” Kolehmainen’s tips to help women cognitively prepare for running a resuscitation.
    • Establish “Identity safety”
      • Remind them there are no gender differences in code competencies
    Validate potential awkwardness
    • Acknowledge that transitioning from one’s typical communication style can be difficult but it is also necessary for running effective resuscitations
    • Practice “Enclothed cognition”
      • Use pager and white coat as external symbols that validate leadership role
      • Consciously transition by tying hair back
    • Adopt “Embodied Cognition”
      • Take advantage of body positioning
        • Stand elevated at head of bed
        • Use power stance
        • Deepen voice
      • Debrief (and possibly acknowledge awkwardness of leadership role) afterwards
    Other tips from podcasters: Reframe resuscitation scenario- advocate for patient, optimize their outcome Liberal use of time outs- this allows summary, direction and formally solicits input
    • Consciously creating a space that empowers others in the room to have the opportunity to speak up is paramount to patient safety
    Bottom line of these two studies:  it is important to consider the potential of gender specific issues and possibly gender specific consequences associated with traditional code leadership. Kolehmainen c, Brennan M, Filut A, Issac C, Carnes M” Afrain of being “witchy” with a “b”: a qualitative study of how gender influences residents’ experiences leading cardiopulmonary resuscitations. Academic Medicine: 2014 89 (9) 1276-81. Wayne DB, Cohen ER, McGaghie WC. Leadership in medical emergencies is not gender-specific. Simul Healthc 2012;7:134. Streiff S, Tschan F, Hunziker S, et al. Leadership in medical emergencies depends on gender and personality. Simul Healthc 2011;6:78Y83. Tool to understand Cohen’s d effect graph: Magnussen, K: http://rpsychologist.com/d3/cohend/ In gender associated research the following d effect size  is commonly used (d 0.10) or small (0.11 d 0.35) range, a few are in the moderate range (0.36 d 0.65), and very few are large (d 0.66–1.00) or very large (d 1.00).