Robert W. S. Coulter
University of Pittsburgh
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Featured researches published by Robert W. S. Coulter.
Drug and Alcohol Dependence | 2016
Robert W. S. Coulter; Michelle Birkett; Heather L. Corliss; Mark L. Hatzenbuehler; Brian Mustanski; Ron Stall
BACKGROUND We investigated whether adolescents drank alcohol less frequently if they lived in jurisdictions with school climates that were more affirmative of lesbian, gay, bisexual, transgender, and questioning (LGBTQ) individuals. METHODS Data from the 2010 School Health Profile survey, which measured LGBTQ school climate (e.g., percentage of schools with safe spaces and gay-straight alliances), were linked with pooled data from the 2005 and 2007 Youth Risk Behavior Survey, which measured sexual orientation identity, demographics, and alcohol use (number of drinking days, drinking days at school, and heavy episodic drinking days) in 8 jurisdictions. Two-level Poisson models tested the associations between school climate and alcohol use for each sexual-orientation subgroup. RESULTS Living in jurisdictions with more (versus less) affirmative LGBTQ school climates was significantly associated with: fewer heavy episodic drinking days for gay/lesbian (incidence-rate ratio [IRR]=0.70; 95% confidence interval [CI]: 0.56, 0.87; p=0.001) and heterosexual (IRR=0.80; 95% CI: 0.76, 0.83; p<0.001) adolescents; and fewer drinking days at school for adolescents unsure of their sexual orientation (IRR=0.57; 95% CI: 0.35, 0.93; p=0.024). CONCLUSIONS Fostering LGBTQ-affirmative school climates may reduce certain drinking behaviors for gay/lesbian adolescents, heterosexual adolescents, and adolescents unsure of their sexual orientation.
Drug and Alcohol Dependence | 2015
Robert W. S. Coulter; John R. Blosnich; Leigh A. Bukowski; Amy L. Herrick; Daniel E. Siconolfi; Ron Stall
BACKGROUND Little is known about differences in alcohol use and alcohol-related problems between transgender- and nontransgender-identified populations. Using data from a large-scale health survey, we compare the drinking patterns and prevalence of alcohol-related problems of transgender-identified individuals to nontransgender-identified males and females. For transgender-identified people, we examine how various forms of victimization relate to heavy episodic drinking (HED). METHODS Cross-sectional surveys were completed by 75,192 students aged 18-29 years attending 120 post-secondary educational institutions in the United States from 2011 to 2013. Self-reported measures included alcohol use, alcohol-related problems, victimization, and sociodemographics, including 3 gender-identity groups: transgender-identified individuals; nontransgender-identified males; and nontransgender-identified females. RESULTS Compared to transgender-identified individuals, nontransgender-identified males were more likely to report HED in the past 2 weeks (relative risk=1.42; p=0.006); however, nontransgender-identified males and females reported HED on fewer days than transgender-identified people (incidence-rate ratios [IRRs] ranged from 0.28 to 0.43; p-values<0.001). Compared to transgender-identified people, nontransgender-identified males and females had lower odds of past-year alcohol-related sexual assault and suicidal ideation (odds ratios ranged from 0.24 to 0.45; p-values<0.05). Among transgender-identified people, individuals who were sexually assaulted (IRR=3.21, p=0.011) or verbally threatened (IRR=2.42, p=0.021) in the past year had greater HED days than those who did not experience those forms of victimization. CONCLUSIONS Compared to transgender-identified people, nontransgender-identified males and females: have fewer HED occasions (despite nontransgender-identified males having greater prevalence of HED); and are at lower risk for alcohol-related sexual assaults and suicidal ideation. Experiences of sexual assault and verbal threats are associated with greater HED occasions for transgender-identified people.
Prevention Science | 2017
Robert W. S. Coulter; Christina Mair; Elizabeth Miller; John R. Blosnich; Derrick D. Matthews; Heather L. McCauley
A critical step in developing sexual assault prevention and treatment is identifying groups at high risk for sexual assault. We explored the independent and interaction effects of sexual identity, gender identity, and race/ethnicity on past-year sexual assault among college students. From 2011 to 2013, 71,421 undergraduate students from 120 US post-secondary education institutions completed cross-sectional surveys. We fit multilevel logistic regression models to examine differences in past-year sexual assault. Compared to cisgender (i.e., non-transgender) men, cisgender women (adjusted odds ratios [AOR] = 2.47; 95% confidence interval [CI] 2.29, 2.68) and transgender people (AOR = 3.93; 95% CI 2.68, 5.76) had higher odds of sexual assault. Among cisgender people, gays/lesbians had higher odds of sexual assault than heterosexuals for men (AOR = 3.50; 95% CI 2.81, 4.35) but not for women (AOR = 1.13; 95% CI 0.87, 1.46). People unsure of their sexual identity had higher odds of sexual assault than heterosexuals, but effects were larger among cisgender men (AOR = 2.92; 95% CI 2.10, 4.08) than cisgender women (AOR = 1.68; 95% CI 1.40, 2.02). Bisexuals had higher odds of sexual assault than heterosexuals with similar magnitude among cisgender men (AOR = 3.19; 95% CI 2.37, 4.27) and women (AOR = 2.31; 95% CI 2.05, 2.60). Among transgender people, Blacks had higher odds of sexual assault than Whites (AOR = 8.26; 95% CI 1.09, 62.82). Predicted probabilities of sexual assault ranged from 2.6 (API cisgender men) to 57.7% (Black transgender people). Epidemiologic research and interventions should consider intersections of gender identity, sexual identity, and race/ethnicity to better tailor sexual assault prevention and treatment for college students.
Aids Care-psychological and Socio-medical Aspects of Aids\/hiv | 2017
M. Reuel Friedman; Robert W. S. Coulter; Anthony J. Silvestre; Ron Stall; Linda A. Teplin; Steve Shoptaw; Pamela J. Surkan; Michael Plankey
ABSTRACT Though functional social support has been shown to serve as a protective factor for HIV viral load suppression in other populations, scant research has examined this relationship among men who have sex with men (MSM) in the United States. We assessed characteristics of social support, effects of social support on HIV viral load, and moderation by social support of the relationship between psychosocial indicators of a synergistic epidemic (syndemic) and HIV viral load. We analyzed longitudinal data from HIV-positive MSM using antiretroviral therapy who were enrolled in the Multicenter AIDS Cohort Study between 2002 and 2009 (n = 712). First, we conducted reliability assessments of a one-item social support measure. Then, we conducted a series of generalized longitudinal mixed models to assess our research questions. Moderation was assessed using an interaction term. A three-level (low/medium/high) social support variable demonstrated high reliability (intraclass correlation coefficients = 0.72; 95% CI: 0.70, 0.75). Black and Hispanic MSM reported lower social support than their White counterparts (p < .0001). Recent sero-conversion was associated with higher social support (p < .05). Higher numbers of concomitant syndemic indicators (depression, polysubstance use, and condomless anal sex) were associated with lower social support (p < .0001). Medium and high social support levels were associated with greater viral load suppression and lower viral load means (p < .0001). Social support moderated the relationships between syndemic and HIV viral load (p < .05). HIV-positive MSM, particularly those of color, may benefit greatly from interventions that can successfully boost functional social support. Creating strengths-based interventions may also have particularly high impact among HIV-positive MSM with the highest psychosocial burdens.
LGBT health | 2015
Robert W. S. Coulter; Suzanne Kinsky; Amy L. Herrick; Ron Stall; José A. Bauermeister
PURPOSE Syndemics, or the co-occurrence and interaction of health problems, have been examined extensively among young men who have sex with men, but their existence remain unexamined, to our knowledge, among sexual-minority (i.e., lesbian, gay, and bisexual) women. Thus, we investigated if syndemics were present among young sexual-minority women, and if sexual-orientation discrimination was an independent variable of syndemic production. METHODS A total of 467 sexual-minority women between the ages of 18 and 24 completed a cross-sectional online survey regarding their substance use, mental health, sexual behaviors, height, weight, and experiences of discrimination. We used structural equation modeling to investigate the presence of syndemics and their relationship to sexual-orientation discrimination. RESULTS Heavy episodic drinking, marijuana use, ecstasy use, hallucinogen use, depressive symptoms, multiple sexual partners, and history of sexually transmitted infections (STIs) comprised syndemics in this population (chi-square=24.989, P=.201; comparative fit index [CFI]=0.946; root mean square error of approximation [RMSEA]=0.023). Sexual-orientation discrimination is significantly and positively associated with the latent syndemic variable (unstandardized coefficient=0.095, P<.05), and this model fit the data well (chi-square=33.558, P=.059; CFI=0.914; RMSEA=0.029). The reverse causal model showed syndemics is not an independent variable of sexual-orientation discrimination (unstandardized coefficient=0.602, P>.05). CONCLUSIONS Syndemics appear to be present and associated with sexual-orientation discrimination among young sexual-minority women. Interventions aimed at reducing discrimination or increasing healthy coping may help reduce substance use, depressive symptoms, and sexual risk behaviors in this population.
Drug and Alcohol Dependence | 2016
Robert W. S. Coulter; Miesha Marzell; Robert F. Saltz; Ron Stall; Christina Mair
BACKGROUND Evidence suggests there are important sexual-orientation differences in alcohol consumption, particularly among women. Little is known about where gay/lesbian and bisexual college students drink or differences in drinking patterns derived from graduated frequency measures between heterosexual, gay/lesbian, and bisexual students. The goal of this analysis was to examine patterns of alcohol consumption-including drinking prevalence, quantity, frequency, and contexts of use-by sexual orientation. METHODS Data on sexual identity, gender, drinking behaviors, and drinking contexts were examined from repeated cross-sectional samples of undergraduate students attending 14 public California universities from 2003-2011 (n=58,903). Multivariable statistical techniques were employed to examine sexual-orientation differences stratified by gender. RESULTS Gay males, lesbians, and bisexual females were significantly more likely to report drinking alcohol in the current semester than their same-gender heterosexual peers (relative risks ranged from 1.07 to 1.10, p-values <0.01). Among current drinkers, bisexual females consumed 7 or more drinks and lesbians consumed 10 or more drinks on significantly more days than heterosexual females. On the other hand, gay male drinkers consumed 8 or more drinks on significantly fewer days than heterosexual male drinkers. Compared to their same-gender heterosexual peers: lesbian/gay and bisexual students drank less frequently at Greek parties (incidence rate ratios [IRRs] ranged from 0.52 to 0.73, p-values <0.01); lesbians (IRR=0.84, p=0.043) and bisexual males (IRR=0.82, p=0.009) drank less frequently at off-campus parties; and gay males drank more frequently outdoors (IRR=1.63, p<0.001) and at bars/restaurants (IRR=1.21, p=0.013). CONCLUSIONS Alcohol prevention programs and future research should consider sexual-orientation differences in drinking patterns and use of drinking contexts.
American Journal of Public Health | 2016
Robert W. S. Coulter; Amy L. Herrick; M. Reuel Friedman; Ron Stall
OBJECTIVES To examine sexual-orientation differences in positive youth development, and how bullying victimization mediated these differences in a sample of adolescents. METHODS In 2007 to 2008, positive youth development was measured in 1870 adolescents from US schools and after-school programs in 45 states by using the validated Five Cs model of competence, confidence, connection, character, and caring/compassion. Sexual-minority youths (6.8%) reported having same- or both-gender sexual attractions. Nonattracted youths (4.2%) reported having no sexual attractions. RESULTS Compared with sexual-minority youths, heterosexual and nonattracted youths had lower odds of being a victim of bullying. Heterosexual and nonattracted youths also had higher average scores in competence, confidence, and connection, but these associations between sexual orientation and positive youth development scores were partly attributable to lack of bullying victimization. CONCLUSIONS Designing, implementing, and evaluating interventions that reduce bullying can give sexual-minority youths access to several building blocks of health and well-being.
Social Science & Medicine | 2015
Ron Stall; Robert W. S. Coulter; Friedman Mr; Michael Plankey
a Department of Behavioral and Community Health Sciences, Graduate School of Public Health, University of Pittsburgh, 130 DeSoto Street, Pittsburgh, PA 15261, United States b Center for LGBT Health Research, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States c Department of Infectious Diseases and Microbiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States d Department of Medicine, Division of Infectious Diseases, Georgetown University Medical Center, Washington, DC, United States
Harm Reduction Journal | 2017
Mary Hawk; Robert W. S. Coulter; James E. Egan; Stuart Fisk; M. Reuel Friedman; Monique Tula; Suzanne Kinsky
BackgroundHarm reduction refers to interventions aimed at reducing the negative effects of health behaviors without necessarily extinguishing the problematic health behaviors completely. The vast majority of the harm reduction literature focuses on the harms of drug use and on specific harm reduction strategies, such as syringe exchange, rather than on the harm reduction philosophy as a whole. Given that a harm reduction approach can address other risk behaviors that often occur alongside drug use and that harm reduction principles have been applied to harms such as sex work, eating disorders, and tobacco use, a natural evolution of the harm reduction philosophy is to extend it to other health risk behaviors and to a broader healthcare audience.MethodsBuilding on the extant literature, we used data from in-depth qualitative interviews with 23 patients and 17 staff members from an HIV clinic in the USA to describe harm reduction principles for use in healthcare settings.ResultsWe defined six principles of harm reduction and generalized them for use in healthcare settings with patients beyond those who use illicit substances. The principles include humanism, pragmatism, individualism, autonomy, incrementalism, and accountability without termination. For each of these principles, we present a definition, a description of how healthcare providers can deliver interventions informed by the principle, and examples of how each principle may be applied in the healthcare setting.ConclusionThis paper is one of the firsts to provide a comprehensive set of principles for universal harm reduction as a conceptual approach for healthcare provision. Applying harm reduction principles in healthcare settings may improve clinical care outcomes given that the quality of the provider-patient relationship is known to impact health outcomes and treatment adherence. Harm reduction can be a universal precaution applied to all individuals regardless of their disclosure of negative health behaviors, given that health behaviors are not binary or linear but operate along a continuum based on a variety of individual and social determinants.
American Journal of Orthopsychiatry | 2017
Robert W. S. Coulter; Shari Kessel Schneider; Blair Beadnell; Lydia O'Donnell
This study examined sexual-orientation differences in reports of outside- and within-school adult support, and whether sexual orientation moderates the associations between adult support and suicidality (i.e., thoughts, plans, and attempts). At 26 high schools across MetroWest Boston, 22,834 students completed surveys assessing: sexual orientation (heterosexual, gay/lesbian, bisexual, or questioning); presence of outside- and within-school adult support; and past-year suicidality. Multivariable regression analyses with General Estimating Equations (adjusting for gender, grade, and race/ethnicity) examined sexual-orientation subgroup differences in adult support, and how sexual orientation and adult support were associated with suicidality. Interaction terms tested whether relationships between adult support and suicidality were moderated by sexual orientation. Gay/lesbian, bisexual, and questioning youth were each less likely than heterosexuals to report having outside-school adult support (risk ratios range: 0.85–0.89). Each group also had greater odds than heterosexuals for suicidal thoughts (odds ratios [ORs] range: 1.86–5.33), plans (ORs range: 2.15–5.22), and attempts (ORs range: 1.98–7.90). Averaged across sexual-orientation subgroups, outside-school support was more protective against suicidality (ORs range: 0.34–0.35) than within-school support (ORs range: 0.78–0.82). However, sexual orientation moderated the protective effects of outside-school adult support, with support being less protective for bisexual and questioning youth than for heterosexuals. Adult support, and particularly outside-school adult support, is associated with lower suicidality. However, fewer gay/lesbian, bisexual, and questioning youth can rely on outside-school support and, even if present, it may be less protective against suicidality. Interventions are needed to help adults support gay/lesbian, bisexual, and questioning youth and reduce suicidality disparities.