Brief Report: Changes in Behavior After PrEP Initiation Among Australian Gay and Bisexual Men

Introduction: HIV pre-exposure prophylaxis (PrEP) has been increasingly adopted by gay and bisexual men (GBM). Little is known about whether individual GBM change their sexual behavior after PrEP initiation. Methods: Following Lives Undergoing Change (Flux) is a national, online, prospective observational study among Australian GBM. Using McNemar statistics, we compare rates of sexual behaviors before and coincident with PrEP initiation among 1518 non–HIV-positive men recruited between August 2014 and July 2017 who had not commenced PrEP at baseline and who completed at least one 6-monthly follow-up surveys by July 2018. Results: The proportion of men using PrEP rose to 24.2% over time. In total, 348 men initiated PrEP during follow-up. PrEP initiators were more likely to report particular sexual behaviors during the follow-up period that they commenced PrEP compared with the period immediately prior: receptive condomless anal intercourse with casual partners increased from 31.0% to 48.9% (McNemar
Source: JAIDS Journal of Acquired Immune Deficiency Syndromes - Category: Infectious Diseases Tags: Prevention Research Source Type: research