Gender(ed) science: How the institutionalization of gender continues to shape the conduct and content of women's health research.

Gender refers to the socially constructed roles, behaviors, and attributes that a particular society considers appropriate for men and women based on assumptions about biological sex. It also operates as a major social organizing principle that confers unequal power, status, and resources to men and women, with direct consequences for health. Historic patriarchal and misogynistic beliefs and values are reinforced through social institutions, including health science, which reify gender inequities. This commentary examines two key domains in which the social organization and institutionalization of gender in scientific research affect the conduct of women's health research and, by extension, women's health outcomes. These domains are: 1) decisions about which topics are prioritized, researched, and funded and 2) the dissemination of research findings. Using the National Institutes of Health (NIH) as a case study to illustrate broader patterns in scientific research, we present evidence of gender-based inequities in what is prioritized, deemed fundable, and disseminated, and how this affects knowledge production and attention to women's health. We highlight efforts and progress made by the NIH and call for additional attention to further address gender-based inequities and their impact on women's health research. We conclude with a call for critical social science analyses-ideally supported by the NIH-of the social organization of health science research to identify points of intervention for redressing deep-seated obstacles to advancing research on women's health.

Structural heteropatriarchy and maternal cardiovascular morbidities.

The United States has some of the poorest maternal health outcomes of any developed nation. Existing research on maternal cardiovascular morbidities has focused predominantly on individual- and clinic-level drivers, but we know little about community- and structural-level factors that shape these outcomes. We use a composite measure of "structural heteropatriarchy" which includes measures of structural sexism and structural LGB-stigma to examine the relationship between structural heteropatriarchy and three cardiovascular-related maternal morbidities using the National Longitudinal Study of Adolescent to Adult Health (n = 3928). Results using multivariate regressions show that structural heteropatriarchy is associated with increased risk of reporting maternal morbidities. Our findings provide further evidence that sexuality- and gender-based stigma operate together to shape health disparities, including maternal health.

Disparities in Mortality by Sexual Orientation in a Large, Prospective Cohort of Female Nurses.

Importance: Extensive evidence documents health disparities for lesbian, gay, and bisexual (LGB) women, including worse physical, mental, and behavioral health than heterosexual women. These factors have been linked to premature mortality, yet few studies have investigated premature mortality disparities among LGB women and whether they differ by lesbian or bisexual identity. Objective: To examine differences in mortality by sexual orientation. Design, Setting, and Participants: This prospective cohort study examined differences in time to mortality across sexual orientation, adjusting for birth cohort. Participants were female nurses born between 1945 and 1964, initially recruited in the US in 1989 for the Nurses' Health Study II, and followed up through April 2022. Exposures: Sexual orientation (lesbian, bisexual, or heterosexual) assessed in 1995. Main Outcome and Measure: Time to all-cause mortality from assessment of exposure analyzed using accelerated failure time models. Results: Among 116 149 eligible participants, 90 833 (78%) had valid sexual orientation data. Of these 90 833 participants, 89 821 (98.9%) identified as heterosexual, 694 (0.8%) identified as lesbian, and 318 (0.4%) identified as bisexual. Of the 4227 deaths reported, the majority were among heterosexual participants (n = 4146; cumulative mortality of 4.6%), followed by lesbian participants (n = 49; cumulative mortality of 7.0%) and bisexual participants (n = 32; cumulative mortality of 10.1%). Compared with heterosexual participants, LGB participants had earlier mortality (adjusted acceleration factor, 0.74 [95% CI, 0.64-0.84]). These differences were greatest among bisexual participants (adjusted acceleration factor, 0.63 [95% CI, 0.51-0.78]) followed by lesbian participants (adjusted acceleration factor, 0.80 [95% CI, 0.68-0.95]). Conclusions and Relevance: In an otherwise largely homogeneous sample of female nurses, participants identifying as lesbian or bisexual had markedly earlier mortality during the study period compared with heterosexual women. These differences in mortality timing highlight the urgency of addressing modifiable risks and upstream social forces that propagate and perpetuate disparities.

Mothers' Sexual Identity and Children's Health.

Sexual minority women face a plethora of structural, socioeconomic, and interpersonal disadvantages and stressors. Research has established negative associations between women's sexual minority identities and both their own health and their infants' birth outcomes. Yet a separate body of scholarship has documented similarities in the development and well-being of children living with same-sex couples relative to those living with similarly situated different-sex couples. This study sought to reconcile these literatures by examining the association between maternal sexual identity and child health at ages 5-18 using a US sample from the full population of children of sexual minority women, including those who identify as mostly heterosexual, bisexual, or lesbian, regardless of partner sex or gender. Analyses using data from the National Longitudinal Study of Adolescent to Adult Health (N=8,978) followed women longitudinally and examined several measures of their children's health, including general health and specific developmental and physical health conditions. Analyses found that children of mostly heterosexual and bisexual women experienced health disadvantages relative to children of heterosexual women, whereas the few children of lesbian women in our sample evidenced a mixture of advantages and disadvantages. These findings underscore that to understand sexual orientation disparities and the intergenerational transmission of health, it is important to incorporate broad measurement of sexual orientation that can capture variation in family forms and in sexual minority identities.

Sexual Orientation Disparities in Experiences of Male-Perpetrated Intimate Partner Violence: A Focus on the Preconception and Perinatal Period.

INTRODUCTION: Compared with their heterosexual counterparts, sexual minority women (SMW), especially those with male partners, are at increased risk for intimate partner violence (IPV). IPV has been linked to a variety of adverse maternal, infant, and child health outcomes. However, to date, no research has examined SMW's experiences of IPV in the context of pregnancy. This study explored whether SMW were more likely than exclusively heterosexual women with only male sexual partners (WSM) to report a variety of forms of IPV perpetrated by their male partner before or during pregnancy. METHODS: Data are from the National Longitudinal Study of Adolescent to Adult Health (Add Health). Our sample size ranged from 10,081 to 10,328 pregnancies, matched with their male pregnancy partner, reported by 3,828 to 3,873 women. RESULTS: Logistic regression results indicated that compared with heterosexual-WSM, mostly heterosexual women and heterosexual-women who have sex with women (WSW) were more likely to report any IPV, mostly heterosexual women were more likely to report an IPV-related injury, and heterosexual-WSW were more likely to report sexual assault. CONCLUSIONS: Results suggest that mostly heterosexual and heterosexual-WSW are at increased risk of experiencing multiple forms of IPV with their male pregnancy partners, highlighting the need for additional screening and prevention efforts to reduce IPV and its negative sequelae.

Breastfeeding Initiation and Continuation Among Sexual Minority Women.

OBJECTIVES: Identify disparities in breastfeeding initiation and continuation among sexual minority women (SMW) and determine if known risk factors explain any observed disparities. METHODS: We used data from the 2006 to 2017 National Survey of Family Growth female pregnancy questionnaire. We measured sexual orientation using self-reported sexual identity and histories of same-sex sexual experiences reported by women (heterosexual-WSM [women who only reported sex with men]; heterosexual-WSW [women who reported sex with women]; bisexual, and lesbian. In total, we had 18,696 births that occurred within the last 10 years and used logistic and multinomial regression models to assess sexual orientation disparities in breastfeeding initiation and duration that clustered on women to account for potential multiple births to a woman. RESULTS: Compared to heterosexual-WSM, infants born to lesbian-identified women had decreased odds of ever being breastfed (OR 0.55, 95% CI 0.30, 0.99) and a decreased relative risk of being breastfed more than 6 months (RRR 0.46, 95% CI 0.22, 0.97). Infants of heterosexual-WSW had an increased odds of ever breastfeeding (OR 1.40, 95% CI 1.12, 1.74) and increased relative risk of breastfeeding more than 6 months (RRR 1.32, 95% CI 1.02, 1.69). CONCLUSIONS: Our results show that infants born to lesbian-identified women were less likely to be breastfed than those born to their heterosexual counterparts, even after adjusting for several factors associated with breastfeeding behaviors. We found no differences in breastfeeding between bisexual women and heterosexual-WSM. Understanding and addressing the barriers sexual minority women face for breastfeeding is critical for ensuring maternal and child health equity.

Disparities in smoking during pregnancy by sexual orientation and race-ethnicity.

The intersection between sexual orientation and race-ethnicity is emerging as an important dynamic for health. Prior research indicates that sexual orientation can have very different health implications for White, Black, and Latina individuals and that these patterns are unpredictable. Here we use U.S. data from the National Survey of Family Growth (2006-2019, n = 15,163 pregnancies) to examine how an important health indicator - smoking during pregnancy - is shaped jointly by sexual orientation and race-ethnicity. Smoking during pregnancy was more common among sexual minority women (both bisexual-identified and heterosexual-identified who expressed same-gender attraction/behavior), compared to heterosexual women. Second, the association between sexual orientation and smoking during pregnancy differed by race-ethnicity: sexual minority status was more strongly associated with smoking among Latina women, compared to White women. Finally, the subgroup with the highest rates of smoking during pregnancy was bisexual White women. These findings indicate that smoking rates among pregnant sexual minority women warrant attention (regardless of race-ethnicity), particularly as births within this group are rising. It is important to address structural factors that may create more stress for sexual minority women, since smoking is often a response to stress. These findings also highlight the role of heterogeneity: low smoking rates among pregnant Latina women mask within-group disparities.

Sexual Orientation Disparities in Preconception Health.

Objective: In the United States, there have been very few improvements in adverse birth outcomes, such as infant mortality, low birthweight, and preterm birth in recent years. Health promotion before pregnancy (e.g., preconception care) has been increasingly recognized as an important strategy by which to improve these reproductive outcomes. As of yet, no research has examined sexual orientation disparities in preconception health which has important implications for birth outcomes in the United States, since sexual minority women (SMW) are more likely to report stillbirths, low birthweight, and preterm infants than heterosexual women. Methods: This study addresses this gap by utilizing data from the National Longitudinal Study of Adolescent to Adult Health (Add Health) to examine sexual orientation disparities in women's preconception health 1 and 3 years before a live birth (n = 3,133). Results: Our findings suggest that, even after controlling for maternal characteristics, SMW are more likely to report adverse health conditions and behaviors before pregnancy relative to heterosexual women 1 year before the survey, including higher odds of binge drinking, other substance use, having a sexually transmitted infection diagnosis, and depression. Conclusions: Despite new public health policies aimed at improved preconception health, our findings suggest that SMW are even more vulnerable to poor preconception health than their heterosexual counterparts, which has important implications for maternal and child health. This study provides important evidence for the need to invest in the reproductive health of SMW, particularly in the context of pregnancy.

Influence of Perceived Femininity, Masculinity, Race/Ethnicity, and Socioeconomic Status on Intimate Partner Violence Among Sexual-Minority Women.

Sexual-minority women (SMW) are believed to experience comparable or higher rates of intimate partner violence (IPV) than heterosexual women. In this study, we expand upon existing research by examining the intersectional relationships among self-perceptions of femininity and masculinity, race/ethnicity, socioeconomic status (SES), and IPV. Data are obtained from the most recent wave of the longitudinal Chicago Health and Life Experiences of Women study that included a diverse sample of SMW (N = 608). We use multivariate generalized linear models to investigate self-perceptions of femininity and masculinity, race/ethnicity, and SES differences in multiple types of IPV, including moderate IPV, severe IPV, and a sexual-minority-specific measure of IPV, threat of "outing" one's partner. Results suggest no differences across self-perceptions of femininity and masculinity in SMW's reporting of victimization but clear differences based on race/ethnicity and SES. Implications for providing support to SMW who experience IPV and suggestions for future research are discussed.

Sexual Orientation Disparities in Pregnancy Risk Behaviors and Pregnancy Among Sexually Active Teenage Girls: Updates from the Youth Risk Behavior Survey.

Purpose: The purpose of this study was to determine the extent to which sexual identity and/or sexual behaviors were associated with pregnancy risk factors (condom use, alcohol or other drug use before sex, and World Health Organization [WHO] Tier 1 [i.e., intrauterine device, implant] or Tier 2 [i.e., injectable, pill, patch, or ring] contraception use) and teen pregnancy among female high school students who reported having a sexual relationship with a male partner. Methods: Data were from the Youth Risk Behavior Survey (YRBS; 2005-2015) (n = 63,313). Logistic regression was used to analyze sexual identity and behavior disparities in pregnancy risk behaviors and teen pregnancy. Interactions between sexual identity and behavior were also tested. All models adjusted for the YRBS complex sampling frame. Results: Girls who reported being unsure of their sexual identity were less likely to use condoms or a WHO Tier 1 or Tier 2 contraceptive method at last sex, and more likely to report alcohol or other drug use at last sex than heterosexual girls. Girls who identified as lesbian were also less likely to use a condom at last sex, and girls who reported both male and female sexual partners were more likely to report alcohol or other drug use and less likely to use condoms at last sex. Girls who identified as bisexual were more likely to report pregnancy during teenage years than girls who identified as heterosexual. Conclusion: Our results support the need to assess both sexual identity and sexual behavior in research on teen pregnancy and pregnancy risk. Furthermore, the finding that girls who were unsure of their sexual identity showed heightened risk highlights the need for additional research that includes this group.

Sexual Minority Women and Contraceptive Use: Complex Pathways Between Sexual Orientation and Health Outcomes.

Compared with their heterosexual peers, sexual minority women (SMW; e.g., queer, bisexual, lesbian, pansexual) have an elevated risk for unintended pregnancy.A team of social science and clinical researchers qualitatively documented the multilevel pathways leading to this disparity, particularly the contexts of contraceptive use. From August 2017 to April 2018, we conducted focus groups and interviews with young adult cisgender SMW in 3 cities: Chicago, Illinois; Madison, Wisconsin; and Salt Lake City, Utah.Most participants reported experience with both penile-vaginal intercourse and contraception. However, they faced several queer-specific barriers to preventing unwanted pregnancy, including a comparative lack of self-concept as contraceptive users, fear of stigma from both queer and health care communities, use of less-effective methods because of infrequent penile-vaginal intercourse and a sense that longer-acting methods were "overkill," and previous experiences of discrimination such as homophobia and gender-based violence. However, participants also reported ways that contraception could align with queer identity, including both taking advantage of noncontraceptive benefits and framing contraception as sex- and queer-positive. These facilitators can inform future efforts to help SMW better meet their pregnancy prevention needs.

Male Abortion Beneficiaries: Exploring the Long-Term Educational and Economic Associations of Abortion Among Men Who Report Teen Pregnancy.

PURPOSE: The aim of the study was to determine if men who report avoiding adolescent fatherhood through a partner's use of abortion have different socioeconomic outcomes than men who report a live birth during adolescence. METHODS: We analyzed a subsample of men who reported a pregnancy before the age of 20 years that ended in either a live birth (n = 460) or abortion (n = 137) in the National Longitudinal Study of Adolescent to Adult Health. We used propensity score and exact matching of baseline characteristics from Wave I of the study completed in 1994 to compare college completion and income reported in Wave IV of the study completed between 2007 and 2008. RESULTS: Among men who reported a live birth, 5.8% reported graduating from college, and 32.4% had any post-high school education compared with 22.1%, and 58.5% of men who reported a pregnancy ended in abortion. In the multivariable matching analysis, men whose adolescent pregnancies ended in abortion had an increased probability of graduating from college (average treatment effect = 8.6; p < .01) and completing any post-high school education in the treatment group (average treatment effect of the treated = 16.5; p < .001) than men whose adolescent pregnancies ended in live birth. We found a positive association between abortion and personal income only compared to men who did not reside with their child born during adolescence. CONCLUSION: Women's use of abortion services were associated with educational benefits for men who report teen pregnancies.

Sexual Orientation Disparities in Pregnancy and Infant Outcomes.

Objectives Little is known about maternal and infant health among sexual minority women (SMW), despite the large body of research documenting their multiple preconception risk factors. This study used data from the 2006-2015 National Survey of Family Growth (NSFG) to investigate sexual orientation inequities in pregnancy and birth outcomes, including miscarriage, stillbirth, preterm birth, and birth weight. Methods Women reported 19,955 study eligible pregnancies and 15,996 singleton live births. Sexual orientation was measured using self-reported identity and histories of same-sex sexual experiences (heterosexual-WSM [women who only report sex with men]; heterosexual-WSW [women who report sex with women]; bisexual, and lesbian). Logistic regression models were used that adjusted for several maternal characteristics. Results Compared to heterosexual-WSM, heterosexual-WSW (OR 1.25, 95% CI 1.00-1.58) and bisexual and lesbian women (OR 1.77, 95% CI 1.34-2.35) were more likely to report miscarriage, and bisexual and lesbian women were more likely to report a pregnancy ending in stillbirth (OR 2.85, 95% CI 1.40-5.83). Lesbian women were more likely to report low birth weight infants (OR 2.64, 95% CI 1.38-5.07) and bisexual and lesbian women were more likely to report very preterm births (OR 1.84, 95% CI 1.11-3.04) compared to heterosexual-WSM. Conclusions for Practice This study documents significant sexual orientation inequities in pregnancy and birth outcomes. More research is needed to understand the mechanisms that underlie disparate outcomes and to develop interventions to improve sexual minority women's maternal and infant health.

Do Sexual Minorities Receive Appropriate Sexual and Reproductive Health Care and Counseling?

CONTEXT: Sexual minority women (SMW) are less likely to use sexual and reproductive health care services and receive contraceptive counseling than their heterosexual peers. The role of recent sexual partners and the type of information provided when SMW access health services are unclear. METHODS: The National Survey of Family Growth 2006-2015 was used to document sexual orientation disparities in the use of sexual and reproductive health services and counseling in clinical settings among 20,703 women. We incorporate data on sexual partners in the past 12 months to investigate whether recent sex with men was associated with health care seeking behavior and reproductive counseling. RESULTS: Eight-seven percent of the sample reported a male partner in the past 12 months, including 83% of bisexual women and 17% of lesbian women. In clinical settings, 48% of women reported birth control counseling at pregnancy or Pap tests, 49% reported a condom consult at an sexually transmitted diseases (STD) screening, and 9% reported emergency contraception counseling at a Pap test. Logistic regression models show that lesbian women were less likely than heterosexual women to have been given a contraceptive prescription or received contraceptive counseling, but were more likely to have received an STD test. In clinical settings, lesbian women were less likely to receive contraceptive counseling at pregnancy tests, and lesbian women without male partners were less likely to have a counseling about condom use at STD-related visits compared with heterosexual women. CONCLUSIONS: At least some women and providers adjust health care seeking behaviors and information provided to women based upon recent sexual behavior histories. More work is needed to understand why disparities in reproductive health services and contraceptive use persist among SMW who engage in sex with men.

Sexual Orientation Disparities in Mistimed and Unwanted Pregnancy Among Adult Women.

CONTEXT: Many sexual minority women, regardless of sexual identity, engage in heterosexual behavior across the life course, which provides them opportunities to experience an unintended pregnancy. In addition, sexual minority women are more likely than others to report characteristics that may make them vulnerable to unintended pregnancy. Little research, however, has examined whether the risk of unintended pregnancy is elevated among these women. METHODS: Using data from the 2006-2010 National Survey of Family Growth, logistic regression models were fitted to examine sexual orientation disparities in mistimed and unwanted pregnancies among 9,807 women aged 20-45; mixed-effects hazard models assessed disparities in the intention status of 5,238 pregnancies among these women by maternal sexual orientation. RESULTS: Compared with heterosexual women reporting only male partners, heterosexual women who have sex with women had higher odds of reporting a mistimed pregnancy (odds ratio, 1.4), and bisexual women had higher odds of reporting an unwanted pregnancy (1.8). When compared with pregnancies reported by heterosexual women with only male partners, those reported by heterosexual women who have sex with women were more likely to be mistimed (hazard ratio, 1.7), and those reported by bisexual and lesbian women were more likely to be unwanted (1.7-4.4). CONCLUSIONS: Compared with heterosexuals who have sex with men only, adult sexual minority women are at equal or greater risk of reporting an unintended pregnancy. More research addressing the reproductive health care needs of sexual minority women is needed to develop strategies to improve family planning for this population.

The impact of civil union legislation on minority stress, depression, and hazardous drinking in a diverse sample of sexual-minority women: A quasi-natural experiment.

RATIONALE: A small but growing body of research documents associations between structural forms of stigma (e.g., same-sex marriage bans) and sexual minority health. These studies, however, have focused on a limited number of outcomes and have not examined whether sociodemographic characteristics, such as race/ethnicity and education, influence the relationship between policy change and health among sexual minorities. OBJECTIVE: To determine the effect of civil union legalization on sexual minority women's perceived discrimination, stigma consciousness, depressive symptoms, and four indicators of hazardous drinking (heavy episodic drinking, intoxication, alcohol dependence symptoms, adverse drinking consequences) and to evaluate whether such effects are moderated by race/ethnicity or education. METHODS: During the third wave of data collection in the Chicago Health and Life Experiences of Women study (N = 517), Illinois passed the Religious Freedom Protection and Civil Union Act, legalizing civil unions in Illinois and resulting in a quasi-natural experiment wherein some participants were interviewed before and some after the new legislation. Generalized linear models and interactions were used to test the effects of the new legislation on stigma consciousness, perceived discrimination, depression, and hazardous drinking indicators. Interactions were used to assess whether the effects of policy change were moderated by race/ethnicity or education. RESULTS: Civil union legislation was associated with lower levels of stigma consciousness, perceived discrimination, depressive symptoms, and one indicator of hazardous drinking (adverse drinking consequences) for all sexual minority women. For several other outcomes, the benefits of this supportive social policy were largely concentrated among racial/ethnic minority women and women with lower levels of education. CONCLUSIONS: Results suggest that policies supportive of the civil rights of sexual minorities improve the health of all sexual minority women, and may be most beneficial for women with multiply marginalized statuses.

Examining Sexual Orientation Disparities in Unmet Medical Needs among Men and Women.

Using the National Longitudinal Study of Adolescent Health (N = 13,810), this study examines disparities in unmet medical needs by sexual orientation identity during young adulthood. We use binary logistic regression and expand Andersen's health care utilization framework to identify factors that shape disparities in unmet medical needs by sexual orientation. We also investigate whether the well-established gender disparity in health-seeking behaviors among heterosexual persons holds for sexual minorities. The results show that sexual minority women are more likely to report unmet medical needs than heterosexual women, but no differences are found between sexual minority and heterosexual men. Moreover, we find a reversal in the gender disparity between heterosexual and sexual minority populations: heterosexual women are less likely to report unmet medical needs than heterosexual men, whereas sexual minority women are more likely to report unmet medical needs compared to sexual minority men. Finally, this work advances Andersen's model by articulating the importance of including social psychological factors for reducing disparities in unmet medical needs by sexual orientation for women.

Sexual orientation disparities in sexually transmitted infection risk behaviors and risk determinants among sexually active adolescent males: results from a school-based sample.

OBJECTIVES: We examined disparities in risk determinants and risk behaviors for sexually transmitted infections (STIs) between gay-identified, bisexual-identified, and heterosexual-identified young men who have sex with men (YMSM) and heterosexual-identified young men who have sex with women (YMSW) using a school-based sample of US sexually active adolescent males. METHODS: We analyzed a pooled data set of Youth Risk Behavior Surveys from 2005 and 2007 that included information on sexual orientation identity, sexual behaviors, and multiple STI risk factors. RESULTS: Bisexual-identified adolescents were more likely to report multiple STI risk behaviors (number of sex partners, concurrent sex partners, and age of sexual debut) compared with heterosexual YMSW as well as heterosexual YMSM and gay-identified respondents. Gay, bisexual, and heterosexual YMSM were significantly more likely to report forced sex compared with heterosexual YMSW. CONCLUSIONS: Our results provide evidence that sexual health disparities emerge early in the life course and vary by both sexual orientation identity and sexual behaviors. In particular, they show that bisexual-identified adolescent males exhibit a unique risk profile that warrants targeted sexual health interventions.

Mediation by peer violence victimization of sexual orientation disparities in cancer-related tobacco, alcohol, and sexual risk behaviors: pooled youth risk behavior surveys.

OBJECTIVES: We examined the role of adolescent peer violence victimization (PVV) in sexual orientation disparities in cancer-related tobacco, alcohol, and sexual risk behaviors. METHODS: We pooled data from the 2005 and 2007 Youth Risk Behavior Surveys. We classified youths with any same-sex sexual attraction, partners, or identity as sexual minority and the remainder as heterosexual. We had 4 indicators of tobacco and alcohol use and 4 of sexual risk and 2 PVV factors: victimization at school and carrying weapons. We stratified associations by gender and race/ethnicity. RESULTS: PVV was related to disparities in cancer-related risk behaviors of substance use and sexual risk, with odds ratios (ORs) of 1.3 (95% confidence interval [CI] = 1.03, 1.6) to 11.3 (95% CI = 6.2, 20.8), and to being a sexual minority, with ORs of 1.4 (95% CI = 1.1, 1.9) to 5.6 (95% CI = 3.5, 8.9). PVV mediated sexual orientation disparities in substance use and sexual risk behaviors. Findings were pronounced for adolescent girls and Asian/Pacific Islanders. CONCLUSIONS: Interventions are needed to reduce PVV in schools as a way to reduce sexual orientation disparities in cancer risk across the life span.

The association between sexual orientation identity and behavior across race/ethnicity, sex, and age in a probability sample of high school students.

OBJECTIVES: We examined the prevalence and associations between behavioral and identity dimensions of sexual orientation among adolescents in the United States, with consideration of differences associated with race/ethnicity, sex, and age. METHODS: We used pooled data from 2005 and 2007 Youth Risk Behavior Surveys to estimate prevalence of sexual orientation variables within demographic sub-groups. We used multilevel logistic regression models to test differences in the association between sexual orientation identity and sexual behavior across groups. RESULTS: There was substantial incongruence between behavioral and identity dimensions of sexual orientation, which varied across sex and race/ethnicity. Whereas girls were more likely to identify as bisexual, boys showed a stronger association between same-sex behavior and a bisexual identity. The pattern of association of age with sexual orientation differed between boys and girls. CONCLUSIONS: Our results highlight demographic differences between 2 sexual orientation dimensions, and their congruence, among 13- to 18-year-old adolescents. Future research is needed to better understand the implications of such differences, particularly in the realm of health and health disparities.