Human PapillomaVirus vaccination in gay and bi men: Predictors, dynamic norms, and connectedness to the LGBT+ community.

Objectives: This study tested social cognitive predictors of vaccination and a dynamic norms intervention for increasing HPV vaccination intentions in gay, bisexual, and other men who have sex with men (gbMSM).

Design: The study employed an experiment embedded in a cross-sectional survey.

Methods: Participants (N = 217; gbMSM aged 18-45 in Ireland) provided cross-sectional data on sociodemographic constructs and constructs from the Theory of Planned Behaviour and the Health Belief Model.