Modifiers of Cancer Screening Prevention Among Sexual and Gender Minorities in the Behavioral Risk Factor Surveillance System

Abstract

Purpose: Increasing social acceptance of sexual and gender minorities may not translate to parity in health care access and health outcomes. Sexual orientation and gender identity (SOGI) may continue to contribute to differences in preventive health behavior including cancer screening. Our purpose was to estimate the independent effect of SOGI on breast, cervical, and colorectal cancer screening adherence.

Methods: We used sampling weighted data from 2016 Behavioral Risk Factor Surveillance System. We defined breast, cervical, and colorectal cancer screening using the US Preventive Services Task Force guidelines. All survey data were self-reported including demographic and medical information. We calculated the prevalence of screening by sexual orientation (straight, lesbian or gay, bisexual) and gender identity (cisgender, transgender). The term "sexual and gender minorities" in our study refers to lesbian or gay, bisexual, and transgender individuals. Logistic regression models assessed independent effect of SOGI on screening adherence.

Results: Prevalence of breast, cervical, and colorectal cancer screening varied significantly by SOGI. After adjusting for other variables, bisexual persons had significantly lower odds (odds ratio [OR] = 0.60, 95% confidence interval [CI] = 0.38-0.93) of breast cancer screening adherence. Lesbian or gay persons had significantly decreased likelihood (OR = 0.53, 95% CI = 0.29-0.95) of cervical cancer screening adherence. Although rate of colorectal cancer screening adherence varied significantly by SOGI, we did not find an independent effect of SOGI and colorectal cancer screening adherence after adjusting for other variables. No independent effect of gender identity categories on breast, cervical, and colorectal cancer screening adherence was detected. Social determinants of health, such as health care access and insurance, that disproportionately disadvantaged bisexual individuals independently influenced screening adherence.

Conclusions: SOGI can affect cancer screening adherence. Bisexual individuals had worse health care access and socioeconomic hardships among sexual and gender minorities. Given the independent effects of social determinants of health on cancer screening adherence, more attention needs to be paid to sexual and gender minorities, especially bisexual population.

Keywords: Cancer screening; LGBTQ; gender identity.