Is Young Adulthood a Critical Period for Suicidal Behavior among Sexual Minorities? Results from a US National Sample
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The developmental timing of suicide-related disparities between heterosexuals and sexual minorities (i.e., lesbian/gay and bisexual (LGB) people) is an understudied area that has critical prevention implications. In addition to developmentally situated experiences that shape risk for suicidality in the general population, sexual minorities also experience unique social stressors (e.g., anti-LGB stigma) that may alter their risk for suicidal behavior at different ages. Using a nationally representative US sample of adults, we assessed age-varying rates of suicidal behavior among heterosexuals and sexual minorities ages 18 to 60 and the age-varying association between anti-LGB discrimination and suicidal behavior. We also tested whether these age-varying prevalences and associations differed for men and women and for sexual minorities who did and did not endorse a sexual minority identity. Results indicate a critical period for suicide behavior risk for sexual minorities during young adulthood, with the highest rates of risk at age 18 followed by a steady decline until the early 40s. Disparities were particularly robust for sexual minorities who identified as lesbian, gay, or bisexual. This pattern was present for both men and women, though sexual minority women in their 30s were more likely to report suicidal behavior than heterosexuals and sexual minority men. Sexual minorities who experienced anti-LGB discrimination were more likely to report suicidal behavior, but the significance of this association was limited to those under 30. The effect of discrimination on suicidal behavior was stronger among young adult sexual minority men, relative to sexual minority women, but was present for a wider age range for sexual minority women (until age 30) relative to sexual minority men (until age 25).
KeywordsLGB Sexual minority Suicidal behavior Suicidality Young adulthood Lifespan Time-varying effect modeling
This study was funded by several grants awarded by the National Institutes of Health, including grant numbers F32AA023138 (awarded to Fish), R24HD042849 (awarded to the Population Research Center at the University of Texas at Austin), P50DA039838 (awarded to The Methodology Center at Penn State), and R01DA039854 (awarded to Lanza). This manuscript was prepared using a limited access dataset obtained from the National Institute on Alcohol Abuse and Alcoholism. The content is solely the responsibility of the authors and does not reflect the official views of the National Institutes of Health.
Compliance with Ethical Standards
The authors report no conflicts.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Secondary data analysis for the current manuscript was approved by the Pennsylvania State University and the University of Texas at Austin Institutional Review Boards. The NESARC protocol was originally approved by the US Census Bureau and the US Office of Budget and Management.
The NESARC researchers obtained informed consent from all participants included in the study.
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