Human Papillomavirus Vaccination Initiation and Completion Among Heterosexual and Sexual Minority U.S. Adults.

ABSTRACT

Purpose: The current study examined the relationship between sexual orientation and human papillomavirus (HPV) vaccination status (no vaccination vs. vaccination initiation [one to two doses] or completion [three or more doses]) among a nationally representative sample of U.S. adults. Methods: Pooled Integrated Public Use Microdata Series-National Health Interview Survey data from 2013 to 2017 were used. The analysis sample (N = 35,266) reported on HPV vaccination status, sexual orientation, and demographic covariates. Multinomial logistic regression, stratified by sex, was conducted to assess the relationship between sexual orientation and HPV vaccination status. Results: Most of the sample (80.37%) had not received any HPV vaccination dose, and only ∼10% reported vaccine completion (three or more doses). After adjusting for demographic covariates, gay and bisexual males were more likely than heterosexual males to initiate (gay adjusted odds ratio [AOR] = 2.46, 95% confidence interval [CI] = 1.67-3.62; bisexual AOR = 2.30, 95% CI = 1.28-4.12) and complete (gay AOR = 2.59, 95% CI = 1.45-4.65; bisexual AOR = 3.20, 95% CI = 1.56-6.55) HPV vaccination. Bisexual females were more likely than heterosexual females to initiate (AOR = 1.99, 95% CI = 1.55-2.54) and complete (AOR = 1.45, 95% CI = 1.23-1.86) HPV vaccination. Females of another sexual orientation were less likely than heterosexual females to complete HPV vaccination (AOR = 0.49, 95% CI = 0.26-0.92). Conclusions: HPV vaccination remains low across sexual orientation groups. Sexual minority status may be a promotive factor in HPV vaccination for specific subgroups.