We examined the role of adolescent peer violence victimization (PVV) in sexual orientation disparities in cancer-related tobacco, alcohol, and sexual risk behaviors. 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. 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. Interventions are needed to reduce PVV in schools as a way to reduce sexual orientation disparities in cancer risk across the life span. The Institute of Medicine recently reviewed the research literature on health disparities between lesbian, gay, bisexual, and transgender individuals and heterosexuals across the life span.1 It identified the significant role of stigma in the health of lesbian, gay, bisexual, and transgender individuals and areas in need of research, including disparities in cancer between sexual minorities (lesbian, gay, and bisexual persons) and heterosexuals. Behaviors that increase cancer risk (e.g., tobacco and alcohol use, unprotected sexual intercourse) may be initiated during adolescence. For sexual minorities, peer violence victimization (PVV) may partly explain disparities in cancer-related risk behaviors because such disparities between sexual minorities and heterosexuals have been attributed to the differential burden of stigma experienced by sexual minorities.1Certain behaviors place one at risk for cancer, and sexual orientation disparities exist in those cancer-related risk behaviors. Tobacco and alcohol use are risk factors for various types of cancers, such as lung, esophageal, oropharyngeal, and colon.2–8 More sexual minority adults and youths than their heterosexual peers report tobacco and alcohol use.9–18Several sexual risk behaviors (number of partners, early age of first intercourse, concurrent sexual partners, lack of condom use, and substance use during intercourse) are known to increase vulnerability to infection with, for example, human papillomavirus (HPV)19–29 and hepatitis B.30,31 Women who have sex with women have elevated rates of such sexual risk behaviors relative to women who only have sex with men.32–34 Women who only have sex with women are less likely to be screened for sexually transmitted infections,33,35,36 despite the risk of HPV transmission during female-to-female sexual intercourse.37 HPV in men is important because it is linked to anal, oral, and penile cancers.24,38 The risk of cancer-related sexual behaviors may be elevated among sexual minority men, because of the links between anal intercourse, HPV, and anal cancer,39 especially among men who are HIV positive.40 Hepatitis B has been linked to liver cancer41 and increased risk of anal HPV among men.31

Other Authors
  1. Margaret Rosario, PhD, City University of New York, NY
  2. Heather L. Corliss, PhD, Boston Children’s Hospital
  3. Bethany G. Everett, PhD, University of Illinois at Chicago
  4. Francisco O. Buchting, PhD, Horizons Foundation
  5. Michelle A Birkett, PhD,Northwestern University