Rates and Predictors of Human Papillomavirus Vaccination among Young Men Recruited from Urban Clinical and Community Settings

Background and Objective: Human papillomavirus (HPV) vaccination rates are suboptimal in young men, representing a missed opportunity to prevent cancers caused by HPV. Data about factors associated with vaccination over time are important to design interventions that improve vaccination rates. The aims of this study were to determine HPV vaccine initiation and completion rates in young men 13-26 years of age recruited from clinical and community settings from 2013-2014 and 2016-2017, and to determine factors associated with vaccination. Material and Methods: Men (N=747) were recruited from a hospital-based teen health center (THC), health department sexually transmitted disease clinic (HDSTD) and the general community. Participants completed a self-administered survey assessing demographic and behavioral factors. Vaccination status was determined using the electronic medical record and a statewide immunization registry. We determined vaccine initiation and completion rates, by recruitment site and year. We determined factors independently associated with vaccine initiation and completion, overall and stratified by recruitment year, using multivariable logistic regression. Results: Mean age was 21.2 years, 258 (34.5%) had initiated the vaccine series and 154 (20.8%) had completed it. Those recruited from the THC (vs. community and HDSTD) were more likely to initiate (71.3%, 23.2%, and 19.5%, respectively, p