Disparities in positive mental health of sexual and gender minority adults in Canada. / Disparités dans la santé mentale positive des adultes faisant partie d'une minorité sexuelle ou de genre au Canada.

INTRODUCTION: The goal of this study was to examine potential disparities in positive mental health (PMH) among adults in Canada by sexual orientation and gender modality. METHODS: Using 2019 Canadian Community Health Survey (CCHS) Annual Component data (N = 57 034), we compared mean life satisfaction and the prevalence of high self-rated mental health (SRMH), happiness and community belonging between heterosexual and sexual minority adults, and between cisgender and gender minority adults. We used 2019 CCHS Rapid Response on PMH data (N = 11 486) to compare the prevalence of high psychological well-being between heterosexual and sexual minority adults. Linear and logistic regression analyses examined the between-group differences in mean life satisfaction and the other PMH outcomes, respectively. RESULTS: Sexual minority (vs. heterosexual) adults reported lower mean life satisfaction (B = -0.7, 95% CI: -0.8, -0.5) and were less likely to report high SRMH (OR = 0.4, 95% CI: 0.3, 0.5), happiness (OR = 0.4, 95% CI: 0.3, 0.5), community belonging (OR = 0.6, 95% CI: 0.5, 0.7) and psychological well-being (OR = 0.4, 95% CI: 0.3, 0.6). Differences were not always significant for specific sexual minority groups in sexstratified analyses. Gender minority adults reported lower mean life satisfaction and were less likely to report high SRMH and happiness than cisgender adults. CONCLUSION: Future research could investigate how these PMH disparities arise, risk and protective factors in these populations, how other sociodemographic factors interact with sexual orientation and gender identity to influence PMH and changes in disparities over time.

The role of loneliness in the association between sexual orientation and depressive symptoms among older adults: A prospective cohort study.

BACKGROUND: This study aims to understand the mechanisms contributing to the elevated risk of depression among sexual minority older adults compared to heterosexuals. Specifically, the role of loneliness as a potential mediator is investigated to inform targeted interventions for preventing depression in sexual minority populations. METHODS: Data from the English Longitudinal Study of Ageing, focusing on adults aged over 50, were analysed. Sexual orientation (sexual minority or heterosexual) and loneliness scores (UCLA scale) were assessed at wave six (2010-2011), while depressive symptoms (CESD) were assessed at wave seven (2013-14). Linear regression models and mediation analyses, using g-computation formula and adjusted for confounders, were conducted. RESULTS: The sample included 6794 participants, with 478 (7.0 %) identifying as sexual minorities. After adjustments, sexual minorities scored higher on depressive symptoms at wave seven (mean difference): 0.23, 95 % CI 0.07 to 0.39) and loneliness at wave six (MD: 0.27, 95 % CI 0.08 to 0.46). Loneliness was positively associated with depressive symptoms (coefficient: 0.27, 95 % CI 0.26 to 0.29). In mediation analyses, loneliness explained 15 % of the association between sexual orientation and subsequent depressive symptoms. LIMITATIONS: The dataset used sexual behaviour rather than desire and identity, potentially skewing representation of sexual minorities. Additionally, transgender older adults were not included due to limited gender diversity reported within the ELSA dataset. CONCLUSIONS: Loneliness appears to be a significant modifiable mechanism contributing to the heightened risk of depressive symptoms in sexual minority older adults compared with their heterosexual counterparts.

Examining sexual minority engagement in recovery community centers.

INTRODUCTION: Research indicates that sexual minority (SM) individuals with alcohol and other drug use disorders may underutilize recovery resources generally but be more likely to use recovery community centers (RCCs). To inform recovery supports, this study characterized SM and heterosexual RCC members by demographics and clinical and recovery support service utilization. METHODS: Cross-sectional secondary analyses compared SM and heterosexual RCC members in the northeastern U.S. (n = 337). Qualitative analyses coded the top three recovery facilitators. RESULTS: Of the 337 participants (Meanage[SD] = 40.98[12.38], 51.8 % female), SM RCC members were more likely than heterosexuals to endorse lifetime psychiatric diagnoses and emergency department mental health treatment (p < .01). RCC service utilization and qualitatively derived recovery facilitators were mostly consistent across groups. CONCLUSIONS: RCCs engaged SM individuals in recovery in ways consistent with heterosexuals. Despite otherwise vastly similar demographic characteristics across sexual identity, findings suggest a need for additional mental health resources for SM individuals in recovery.

Sexual Networks and STI Infection Among Young Black Men Who Have Sex With Women in a Southern U.S. City.

PURPOSE: The configuration of one's sexual network has been shown to influence sexually transmitted infection (STI) acquisition in some populations. Young Black men who have sex with women (MSW) have high rates of STIs, yet little is known about their sexual networks. The purpose of this study is to describe the characteristics of sexual networks and their association with selected STI infections among young Black MSW. METHODS: Black MSW aged 15-26 years who were enrolled in the New Orleans community-based screening program named Check It from March 2018 to March 2020 were tested for C. trachomatis and N. gonorrhoeae infection and asked about the nature of their sexual partnerships. Sexual partnerships with women were defined as dyadic, somewhat dense (either themselves or their partner had multiple partners), and dense (both they and their partner(s) had multiple partners). RESULTS: Men (n = 1,350) reported 2,291 sex partners. The percentage of men who reported their networks were dyadic, somewhat dense, and dense was 48.7%, 27.7%, and 23.3%, respectively; 11.2% were STI-positive and 39.2% thought their partner(s) had other partners. Compared to men in dyadic relationships, those in somewhat dense network did not have increased risk of STI infection, but those in dense networks were more likely to have an STI (adjusted odds ratio = 2.06, 95% confidence interval [1.35-3.13]). DISCUSSION: Young Black MSW, who had multiple partners and who thought their partner(s) had other sex partners were at highest risk for STIs. Providers should probe not only about the youth's personal risk but should probe about perceived sexual partners' risk for more targeted counseling/STI testing.

Disparities in Mental Health and Well-Being between Heterosexual and Sexual Minority Older Adults during the COVID-19 Pandemic.

Objectives: This study examines disparities in older adults' mental health and well-being during the pandemic by sexual minority status. Methods: This study analyzed data on older adults from the Health and Retirement Study's COVID-19 Module (N = 3142 for heterosexuals and N = 75 for sexual minorities). Weighted regressions linked concern about COVID-19, depression, pandemic emotional stress, and changes in loneliness, in-person contacts, income, and work to sexual minority status, controlling for sociodemographic characteristics. Results: Compared to heterosexuals, sexual minority older adults had more concern about the pandemic and emotional stress and showed a decrease in in-person contact during the pandemic-these differences were not explained by sociodemographic characteristics. Sexual minority older adults were also more likely to have changes in income and work during the pandemic, but these differences were explained by sociodemographic characteristics. Discussion: Sexual minority older adults have experienced worse mental health outcomes than heterosexuals during the COVID-19 pandemic, which merits intervention.

Characterization of Near Full-Length Transmitted/Founder HIV-1 Subtype D and A/D Recombinant Genomes in a Heterosexual Ugandan Population (2006-2011).

Detailed characterization of transmitted HIV-1 variants in Uganda is fundamentally important to inform vaccine design, yet studies on the transmitted full-length strains of subtype D viruses are limited. Here, we amplified single genomes and characterized viruses, some of which were previously classified as subtype D by sub-genomic pol sequencing that were transmitted in Uganda between December 2006 to June 2011. Analysis of 5' and 3' half genome sequences showed 73% (19/26) of infections involved single virus transmissions, whereas 27% (7/26) of infections involved multiple variant transmissions based on predictions of a model of random virus evolution. Subtype analysis of inferred transmitted/founder viruses showed a high transmission rate of inter-subtype recombinants (69%, 20/29) involving mainly A1/D, while pure subtype D variants accounted for one-third of infections (31%, 9/29). Recombination patterns included a predominance of subtype D in the gag/pol region and a highly recombinogenic envelope gene. The signal peptide-C1 region and gp41 transmembrane domain (Tat2/Rev2 flanking region) were hotspots for A1/D recombination events. Analysis of a panel of 14 transmitted/founder molecular clones showed no difference in replication capacity between subtype D viruses (n = 3) and inter-subtype mosaic recombinants (n = 11). However, individuals infected with high replication capacity viruses had a faster CD4 T cell loss. The high transmission rate of unique inter-subtype recombinants is striking and emphasizes the extraordinary challenge for vaccine design and, in particular, for the highly variable and recombinogenic envelope gene, which is targeted by rational designs aimed to elicit broadly neutralizing antibodies.

Diverging trends in US male-female condom use by STI risk factors: a nationally representative study.

OBJECTIVE: Condom use behaviours are proximal to recent STI increases in the USA, yet it remains unclear whether the use of condoms has changed over time among unmarried, non-cohabiting young men who have sex with women (MSW) and how this variability is influenced by STI risk factors. METHODS: To examine condom use over time among MSW aged 15-29, we used three cross-sectional surveys from the 2002, 2006-2010 and 2011-2017 National Survey of Family Growth. We estimated weighted percentages, adjusted prevalence ratios (APRs) and 95% confidence intervals (CI) to assess changes in condom use, stratified by whether MSW reported any STI risk factors in the past 12 months (ie, perceived partner non-monogamy, male-to-male sex, sex in exchange for money or drugs, sex partner who injects illicit drugs, or an HIV-positive sex partner). RESULTS: We observed a divergence in trends in condom use at last sex between men aged 15 -29 with STI risk factors in the past 12 months and those without such history. We saw significant declines in condom use from 2002 to 2011-2017 among men with STI risk factors (APR=0.80, 95% CI 0.68 to 0.95), specifically among those aged 15-19 (APR=0.73, 95% CI 0.57 to 0.94) or non-Hispanic white (APR=0.71, 95% CI 0.54 to 0.93). In contrast, trends in condom use among men with no STI factors remained stable or increased. Across all time periods, the most prevalent STI risk factor reported was perception of a non-monogamous female partner (23.0%-26.9%). Post-hoc analyses examined whether condom use trends changed once this variable was removed from analyses, but no different patterns were observed. CONCLUSIONS: While STIs have been increasing, men aged 15-29 with STI risk factors reported a decline in condom use. Rising STI rates may be sensitive to behavioural shifts in condom use among young MSW with STI risk factors.

Confirmatory testing of Neisseria gonorrhoeae in a sexual health clinic: implications for epidemiology and treatment policy.

OBJECTIVES: European guidelines advise the use of dual nucleic acid amplification tests (NAAT) in order to minimise the inappropriate diagnosis of Neisseria gonorrhoeae (Ng) in urogenital samples from low prevalence areas and in extragenital specimens. In this cross-sectional study, we investigated the effect of confirmatory testing and confirmation policy on the Ng-positivity in a population visiting the sexual health clinic in Rotterdam, the Netherlands. METHODS: Apart from urogenital testing, extragenital (oropharyngeal/anorectal) testing was performed for men who have sex with men (MSM) and according to sexual exposure for women and heterosexual men. Ng detection using NAAT was performed using BD Viper and for confirmatory testing BD MAX. Sexual transmitted infection consultation data were merged with diagnostic data from August 2015 through May 2016. RESULTS: In women (n=4175), oral testing was performed in 84% and 22% were tested anally. In MSM (n=1828), these percentages were 97% and 96%, respectively. Heterosexual men (n=3089) were tested urogenitally. After confirmatory testing, oropharyngeal positivity rates decreased from 7.3% (95% CI 6.5 to 8.2) to 1.5% (95% CI 1.1 to 1.8) in women and from 13.9% (95% CI 12.3 to 15.5) to 5.4% (95% CI 4.3 to 6.4) in MSM. Anorectal positivity rates decreased from 2.6% (95% CI 1.6 to 3.7) to 1.8% (95% CI 0.9 to 2.6) in women and from 9.3% (95% CI 7.9 to 10.7) to 7.2% (95% CI 6.0 to 8.5) in MSM. Urogenital Ng-positivity rate ranged between 3.0% and 4.4% and after confirmation between 2.3% and 3.9%. When confirming oropharyngeal samples, Ng-positivity was 3.8% in women, 3.0% in heterosexual men and 12.5% in MSM. Additional confirmation of urogenital and anorectal samples led to 3.0% Ng positivity in women, 2.7% in heterosexual men and 11.4% in MSM. CONCLUSIONS: Confirmation of urogenital and anorectal samples reduced the Ng-positivity rates, especially for women. However, as there is no gold standard for the confirmation of Ng infection, the dilemma within public health settings is to choose between two evils: missing diagnoses or overtreatment. In view of the large decrease in oropharyngeal positivity, confirmation Ng-positivity in oropharyngeal samples remains essential to avoid unnecessary treatment.

Improving our understanding of the disproportionate incidence of STIs in heterosexual-identifying people of black Caribbean heritage: findings from a longitudinal study of sexual health clinic attendees in England.

OBJECTIVE: In England, people of black minority ethnicities are at elevated risk of STI diagnosis, especially those of black Caribbean (BC) heritage. Understanding the factors that predict STI acquisition in this population is key to inform prevention measures. We examined the differences in predictors of incident STI diagnoses across ethnic groups in people attending sexual health clinics (SHCs). METHODS: Responses from an attitudinal and behavioural survey run in 16 English SHCs (May-September 2016) were linked to routinely collected national surveillance data on bacterial STI or trichomoniasis diagnoses. Cox proportional hazards models investigated the relationship between participant characteristics and rate of incident STI in the 18 months after survey completion for all heterosexual participants (N=2940) and separately for heterosexual BC (N=484) and white British/Irish (WBI, N=1052) participants. RESULTS: We observed an overall STI incidence of 5.7 per 100 person-years (95% CI 5.1 to 6.5). STI incidence was higher in participants of BC ethnicity (BC, 12.1 per 100 person-years, 95% CI 9.7 to 15.1; WBI, 3.2 per 100 person-years, 95% CI 2.4 to 4.2), even in adjusted analysis (BC adjusted HR (aHR), 2.60, p<0.001, compared with WBI). In models stratified by ethnicity, having had two or more previous STI episodes in the past year was the strongest predictor of incident STI for both BC (aHR 5.81, p<0.001, compared with no previous episodes) and WBI (aHR 29.9, p<0.001) participants. Aside from younger age (aHR 0.96 for increasing age in years, p=0.04), we found no unique predictors of incident STI for BC participants. CONCLUSIONS: Incident STI diagnoses among SHC attendees in England were considerably higher in study participants of BC ethnicity, but we found no unique clinical, attitudinal or behavioural predictors explaining the disproportionate risk. STI prevention efforts for people of BC ethnicity should be intensified and should include tailored public health messaging to address sexual health inequalities in this underserved population.

Racial, Ethnic, and Gender Disparities in Awareness of Preexposure Prophylaxis Among HIV-Negative Heterosexually Active Adults at Increased Risk for HIV Infection - 23 Urban Areas, United States, 2019.

In 2019, heterosexual sex accounted for 23% of new HIV diagnoses in the United States and six dependent areas (1). Although preexposure prophylaxis (PrEP) can safely reduce the risk for HIV infection among heterosexual persons, this group is underrepresented in PrEP research (2). CDC analyzed National HIV Behavioral Surveillance (NHBS) data to describe PrEP awareness among heterosexually active adults in cities with high HIV prevalence. Overall, although 32.3% of heterosexually active adults who were eligible were aware of PrEP, <1% used PrEP. Racial, ethnic, and gender disparities were identified, with the lowest awareness of PrEP among residents of Puerto Rico (5.8%) and Hispanic or Latino (Hispanic) men (19.5%) and women (17.6%). Previous studies have found that heterosexual adults are interested in taking PrEP when they are aware of it (3); tailoring PrEP messaging, including Spanish-language messaging, to heterosexual adults, might increase PrEP awareness and mitigate disparities in use.

A Prospective, Open-Label Pilot Study of Concurrent Male Partner Treatment for Bacterial Vaginosis.

Up to 50% of women receiving first-line antibiotics for bacterial vaginosis (BV) experience recurrence within 12 weeks. Evidence suggests that reinfection from an untreated regular sexual partner contributes to recurrence. We conducted a pilot study of 34 heterosexual couples to describe the impact of concurrent partner treatment on the composition of the genital microbiota over a 12-week period. We also determined the acceptability and tolerability of concurrent partner treatment and obtained preliminary estimates of the efficacy of the intervention to inform a randomized controlled trial (RCT). Women received first-line antibiotic treatment for BV (i.e., oral metronidazole or intravaginal clindamycin), and their male partner received oral metronidazole, 400 mg, and 2% clindamycin cream applied topically to penile skin, both twice daily for 7 days. The genital microbiota was characterized at three anatomical sites (women, vaginal; men, cutaneous penile and first-pass urine [representing the urethra]) using 16S rRNA gene sequencing. Immediately posttreatment, concurrent partner treatment significantly reduced the abundance of BV-associated bacteria (false-discovery rate [FDR] corrected P value < 0.05) and altered the overall microbiota composition of all three anatomical sites (P = 0.001). Suppression of BV-associated bacteria was sustained in the majority (81%) of women over the 12-week period (FDR P value < 0.05), despite BV-associated bacteria reemerging at both genital sites in men. In this cohort of women at high risk for recurrence, five recurred within 12 weeks of treatment (17%; 95% confidence interval [CI], 6 to 34%). Importantly, men tolerated and adhered to combination therapy. Our findings provide support for an RCT of combined oral and topical male partner treatment for BV. IMPORTANCE Recurrence of BV following standard treatment is unacceptably high. Posttreatment recurrence is distressing for women, and it imposes a considerable burden on the health care system. Recurrences result in multiple presentations to clinical services and repeated antibiotic use, and the associated obstetric and gynecological sequelae are significant. New treatments to improve long-term BV cure are urgently needed. Here, we used 16S rRNA gene sequencing to investigate changes in the microbiota composition at three genital sites (vagina, penile skin, and male urethra) of heterosexual couples undergoing concurrent partner treatment for bacterial vaginosis (BV). We found that concurrent partner treatment immediately and significantly altered the composition of the genital microbiota of both partners, with a reduction in BV-associated bacteria seen at all three sites. BV cure at 12 weeks posttreatment was higher than expected. These microbiological data provide evidence for continued investigation of partner treatment as a strategy to improve BV cure.

Differences in Health Care Access and Satisfaction Across Intersections of Race/Ethnicity and Sexual Identity.

PURPOSE: Racial/ethnic and sexual minorities experience numerous health disparities compared with their White and heterosexual counterparts, which may be exacerbated when these social identities intersect. The authors tested for differences in health care access and satisfaction across intersections of sexual identity and race/ethnicity. METHOD: A cross-sectional secondary data analysis of the 2012-2018 waves of the Association of American Medical Colleges biannual online Consumer Survey of Health Care Access was conducted. This survey captures a national sample of U.S. adults who reported needing health care in the past 12 months. The analytic sample included 29,628 participants. Sixteen possible combinations of sexual identity and race/ethnicity were examined. Health care access and satisfaction were measured with 10 items and an index created from these items. Cumulative prevalence ratios (PRs) for the index and PRs across sexual identity, both individually and in combination with race/ethnicity, for each health care access and satisfaction item were generated. RESULTS: Compared with White heterosexuals, all other groups had significantly more barriers to care before adjustment. The greatest barriers were observed among non-Hispanic Asian/Pacific Islander/Hawaiian gay/lesbian (unadjusted PR = 3.08; 95% confidence interval [CI]: 2.45, 3.88; adjusted PR = 2.01; 95% CI: 1.59, 2.53), non-Hispanic Black bisexual (unadjusted PR = 2.73; 95% CI: 2.28, 3.27; adjusted PR = 1.83; 95% CI: 1.52, 2.20), non-Hispanic Black other sexual identity (unadjusted PR = 2.27; 95% CI: 1.69, 3.06; adjusted PR = 2.07; 95% CI: 1.53, 2.78), and Hispanic/Latino other sexual identity (unadjusted PR = 2.06; 95% CI: 1.60, 2.65; adjusted PR = 1.39; 95% CI: 1.08, 1.79) participants. CONCLUSIONS: Persons of both racial/ethnic and sexual minority status generally had less health care access and satisfaction than White heterosexuals. An intersectional perspective is critical to achieving equity in quality health care access.

Dysregulated by stigma: Cortisol responses to repeated psychosocial stress in gay and heterosexual men.

BACKGROUND: Research on pathways linking stigma with health inequalities affecting sexual minority populations, focused predominantly on exploring the hypothalamic-pituitary-adrenocortical (HPA) dysregulation profiles associated with chronic stress. One of such profiles reflecting a state of increased susceptibility to disease, and not yet studied among sexual minority individuals, is impaired habituation to repeated stress of the same type. In this study we explored whether sexual identity modulates endocrine stress responses and stress responses habituation in healthy heterosexual and gay men. We also explored the associations between perceived sexual minority stigma and cortisol response to stress in the latter group. METHODS: Gay (N = 49) and heterosexual (N = 40) men, aged 24.4 years, were confronted twice with the Trier Social Stress Test and provided 5 salivary cortisol samples for each of the two testing sessions. A multilevel mixed-effects approach was used to model the cortisol curve throughout the two-day procedure. Habituation to repeated stress was conceptualized as the decrease in the total cortisol levels as well as the change in the cortisol curvilinearity between the first and the second testing session. RESULTS: Gay participants were characterized by significantly higher cortisol levels throughout both laboratory visits. Their cortisol levels were also predicted by perceived rejection from family due to minority sexual identity, and stigma-related vicarious trauma. Although neither group showed habituation defined as the decrease in cortisol level, the shape of the cortisol curve changed between both visits only in the heterosexual participants. CONCLUSIONS: Increased cortisol levels observed in gay men are predicted by minority stressors. Combined with non-habituation, the upregulation of the HPA axis may constitute a physiological pathway linking stigma to adverse health outcomes.

Longitudinal associations of cannabis, depression, and anxiety in heterosexual and LGB adolescents.

Cannabis use is linked to symptoms of depression and anxiety, particularly among sexual minorities. This study examines the relationships between cannabis, and depression and anxiety symptoms at 13, 15, and 17 years using cross-lagged models in a predominantly White (n = 1,430; 92%) subsample of 1,548 participants from the Quebec Longitudinal study of Child Development. Multigroup analyses were conducted to examine the models according to sexual orientation. Demographic covariates were included as control variables, as well as alcohol, cigarette, and other drug use to examine cannabis specificity. The full sample revealed small bidirectional associations, which remained significant once control variables were included in the model: cannabis at 13 and 15 years predicted anxiety symptoms at 15 and 17 years respectively, and depression symptoms at 15 years predicted cannabis at 17 years. The initial association between cannabis at 13 years and depression symptoms at 15 years was accounted for by other drug use at 13 years. Substantial differences were found between heterosexual participants and sexual minorities: LGB participants presented a substantially larger positive association between depression symptoms at 15 years and cannabis at 17 years, as well as a negative association between anxiety symptoms at 15 years and cannabis at 17 years. Both of these relationships remained significant when accounting for control variables. These results suggest that the relationships between cannabis, and depression and anxiety symptoms are bidirectional across adolescence, albeit small. Sexual minorities present particularly large associations that may represent self-medication efforts for depressive symptoms between 15 and 17 years. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Association between medical male circumcision and HIV risk compensation among heterosexual men: a systematic review and meta-analysis.

BACKGROUND: Medical male circumcision (MMC) reduces HIV infection among heterosexual men. There are concerns MMC might prompt higher-risk sexual behaviours because of lower self-perceived risk of HIV infection. We reviewed the published literature to examine associations between MMC and both condom use and number of sex partners among heterosexual men. METHODS: In this systematic review and meta-analysis, we searched PubMed, Embase, and the Cochrane Library for studies published before Nov 15, 2020. Interventional and observational studies were included if they contained original quantitative data describing the association between MMC and condom use or number of sex partners among heterosexual men. We excluded data from men whose circumcisions were ritual or religious and data from men who have sex with men. We extracted odds ratios (ORs) and 95% CIs for the associations between MMC and condomless sex and MMC and multiple sex partners directly from the publications if available, selecting adjusted ORs when provided; when necessary, we calculated ORs and 95% CIs using original study data provided in the publication. We used the Mantel-Haenszel random effects model to calculate pooled ORs and 95% CIs. FINDINGS: Our search yielded 3035 results, of which 471 were duplicates and 2537 did not meet the inclusion criteria. From the remaining 27 eligible studies, we identified 99 292 men from 31 independent population samples. 24 studies were done in Africa. We found no statistically significant associations between MMC and condomless sex (OR 0·91, 95% CI 0·80-1·05; k=30; I2=88·7%) or multiple sex partners (1·02, 0·88-1·18; k=27; I2=90·1%). No associations between MMC and condomless sex or multiple sexual partners were found in any subgroup analyses by study design, income of country, age, recruitment setting, circumcision assessment, circumcision prevalence, and risk of publication bias. INTERPRETATION: The promotion of circumcision as an HIV preventive measure does not appear to increase higher-risk sexual behaviours in heterosexual men. Ongoing sexual health education should be maintained as a vital component of effective MMC programmes. FUNDING: National Science and Technology Major Project of China, the Fundamental Research Funds for the Central Universities, and the Shenzhen Science and Technology Innovation Commission Basic Research Program.

Mental and Sexual Health Disparities Among Bisexual and Unsure Latino/a and Black Sexual Minority Youth.

Purpose: Sexual minority youth (SMY), particularly bisexual youth and youth unsure of their sexual identity, are at greater risk of poor mental and sexual health outcomes than heterosexual youth. The purpose of this study was to examine disparities in intimate partner violence (IPV) and mental and sexual health for Black and Latino/a bisexual and unsure youth compared with their White bisexual and unsure and Black and Latino/a heterosexual peers. Methods: We used aggregated state and school district 2015 Youth Risk Behavior Survey data to demonstrate differences in mental health (e.g., depressive symptoms and suicidality), sexual health (e.g., number of sexual partners and contraceptive use), and physical and sexual IPV between Black and Latino/a bisexual and unsure youth, and their White bisexual and unsure and Black and Latino/a heterosexual peers. Results: Bisexual and unsure youth had higher odds of depressive symptoms, suicidal ideation and plans, and physical IPV than their same-race heterosexual peers. Black and Latina bisexual and unsure females were more likely to report sexual health risk behaviors than Black and Latina heterosexual females. There were few differences between bisexual and unsure youth of color and White youth. Conclusion: We add to a growing body of literature showing disparities in IPV and mental and sexual health among bisexual and unsure youth of color. Pronounced risk for poor health outcomes among bisexual and unsure females of color needs to be especially addressed by prevention and intervention efforts. We encourage further research on the health of SMY with multiple marginalized identities.

Variation in diet quality across sexual orientation in a cohort of U.S. women.

PURPOSE: Extensive prior research has shown that sexual minority women are more likely to have a number of cancer risk factors, thereby putting them at higher risk for cancer than heterosexual women. However, there has been little research evaluating the association between sexual orientation and diet quality. METHOD: Data come from participants (aged 24-54 years) enrolled in Nurses' Health Study 3, an ongoing, U.S.-based cohort study (N = 15,941). We measured diet using recommendations from the Dietary Approach to Stop Hypertension (DASH) and American Health Association (AHA) 2020 Strategic Impact Goals. RESULTS: We found limited evidence of differences across diet quality by sexual orientation. When examining predicted DASH scores, mostly heterosexual [predicted mean score (95% confidence interval), 24.0 (23.8, 24.3)] and lesbian [24.3 (23.8, 24.9)] women had healthier predicted DASH scores than the reference group of completely heterosexual women with no same-sex partners [23.6 (23.5, 23.7)]. Even though certain sexual minority women had overall healthier predict DASH scores, their consumption of certain food groups-low-fat dairy and fruit-was lower than completely heterosexual women with no same-sex partners. When measuring AHA scores, most sexual minority groups (completely heterosexual women with same-sex partners, mostly heterosexual women, and lesbian women) had higher diet quality compared to the reference group of completely heterosexual women with no same-sex partners. CONCLUSION: Sexual minority women, particularly mostly heterosexual women and lesbian women, had healthier diet quality than completely heterosexual women with no same-sex partners. These data suggest that cancer risk factors (e.g., smoking, drinking, and inactivity) other than diet would drive higher cancer rates among sexual minority compared to heterosexual women. Nonetheless, it is critical for all women to improve their diet quality since diet quality was poor among participants of all sexual orientations.

Comparing substance use and mental health among sexual and gender minority and heterosexual cisgender youth experiencing homelessness.

Youth homelessness has been demonstrated to disproportionately affect sexual and gender minority (SGM) youth compared to heterosexual cisgender peers. In this context, we aimed to compare health risks between service-seeking SGM and heterosexual cisgender youth experiencing homelessness, including harmful risks stemming from substance use and severity of symptoms of mental health disorders. We recruited 100 racially diverse, unstably housed participants aged 18-24 who access services at an urban non-profit organization in San Francisco, CA. Data analysis included 56 SGM participants who identified as gay, lesbian, bisexual, pansexual, unsure, transgender, and nongender, and 44 heterosexual cisgender participants. In contrast to previous studies reporting significantly higher frequency of substance use and more severe symptoms of depression, generalized anxiety, and post-traumatic stress disorder among SGM youth compared to heterosexual cisgender peers, many of these health disparities were not observed in our diverse study population of service-seeking youth. Furthermore, with the exception of methamphetamine, SGM participants did not exhibit greater harmful risks resulting from substance use, such as health, social, financial, and legal complications. We discuss the reduced burden of health disparities between SGM and heterosexual cisgender youth in our service-seeking study population within the context of gender- and sexuality-affirming programming offered at the partnering community organization. We conclude that longitudinal data on these tailored community-level interventions are needed to further explore the reduced burden of health disparities observed among service-seeking SGM youth experiencing homelessness in San Francisco in order to continue supporting pathways out of homelessness for youth of all sexual and gender identities nationwide.

Association Between Sexual Orientation, Mistreatment, and Burnout Among US Medical Students.

Importance: Medical trainee burnout is associated with poor quality care and attrition. Medical students in sexual minority groups report fear of discrimination and increased mistreatment, but the association between sexual orientation, burnout, and mistreatment is unknown. Objective: To evaluate whether medical student burnout differs by sexual orientation and whether this association is mediated by experiences of mistreatment. Design, Setting, and Participants: This cross-sectional study surveyed US medical students graduating from Association of American Medical Colleges (AAMC)-accredited US allopathic medical schools who responded to the AAMC graduation questionnaire in 2016 and 2017. Statistical analyses were performed from March 15, 2019, to July 2, 2020, and from November 20 to December 9, 2020. Main Outcomes and Measures: Burnout was measured using the Oldenburg Burnout Inventory for Medical Students, and sexual orientation was categorized as either heterosexual or lesbian, gay, or bisexual (LGB). Logistic regression models were constructed to evaluate the association between sexual orientation and experiencing burnout (defined as being in the top quartile of exhaustion and disengagement burnout dimensions) and to test the mediating association of mistreatment. Results: From 2016 to 2017, 30 651 students completed the AAMC Graduation Questionnaire, and 26 123 responses were analyzed. Most respondents were younger than 30 years (82.9%) and White (60.3%). A total of 13 470 respondents (51.6%) were male, and 5.4% identified as LGB. Compared with heterosexual students, a greater proportion of LGB students reported experiencing mistreatment in all categories, including humiliation (27.0% LGB students vs 20.7% heterosexual students; P < .001), mistreatment not specific to identity (17.0% vs 10.3%; P < .001), and mistreatment specific to gender (27.3% vs 17.9%; P < .001), race/ethnicity (11.9% vs 8.6%; P < .001), and sexual orientation (23.3% vs 1.0%; P < .001). Being LGB was associated with increased odds of burnout (adjusted odds ratio, 1.63 [95% CI, 1.41-1.89]); this association persisted but was attenuated after adjusting for mistreatment (odds ratio, 1.36 [95% CI, 1.16-1.60]). The odds of burnout increased in a dose-response manner with mistreatment intensity. Lesbian, gay, or bisexual students reporting higher mistreatment specific to sexual orientation had and 8-fold higher predicted probability of burnout compared with heterosexual students (19.8% [95% CI, 8.3%-31.4%] vs 2.3% [95% CI, 0.2%-4.5%]; P < .001). Mediation analysis showed that mistreatment accounts for 31% of the total association of LGB sexual orientation with overall burnout (P < .001). Conclusions and Relevance: This study suggests that LGB medical students are more likely than their heterosexual peers to experience burnout, an association that is partly mediated by mistreatment. Further work is needed to ensure that medical schools offer safe and inclusive learning environments for LGB medical students.

Toward an optimized measure of perceived partner responsiveness: Development and validation of the perceived responsiveness and insensitivity scale.

Perceived partner responsiveness (PPR; Reis & Shaver, Handbook of personal relationships, 1988, Wiley)-the belief that one's partner will attend to core concerns-is a construct in basic relationship research that can help evaluate intimacy in couple therapy. However, research into PPR is hampered by a lack of standardized measurement. Three studies were undertaken to develop and evaluate an optimized self-report PPR measure. In Study 1, n = 2,334 respondents completed 246 candidate items derived from 19 PPR measures. Exploratory factor analyses identified two underlying dimensions, Responsiveness and Insensitivity. Item response theory was used to develop two 8-item subscales for the Perceived Responsiveness and Insensitivity scale (PRI), both of which showed incremental prediction over global satisfaction. In Study 2, n = 173 respondents completed the brief PRI along with measures of global relationship evaluations and concrete relationship behaviors every other week for 8 weeks. Random intercept cross-lagged panel models found the PRI subscales were more sensitive than global evaluations to fluctuations in support and conflict. In Study 3, n = 161 heterosexual couples completed the brief PRI along with self-reports of responsive and insensitive behaviors. Actor-partner interdependence models demonstrated the PRI subscales were associated with partners' self-reported behaviors even after controlling for own behaviors. Thus, the PRI offers a PPR measure that demonstrates desirable properties for treatment research including (a) incremental validity over global satisfaction, (b) ability to detect meaningful change over time, and (c) sensitivity to partners' behaviors in the relationship. (PsycInfo Database Record (c) 2021 APA, all rights reserved).