Conor Stack1, Catie Oldenburg, Matthew Mimiaga, Steven A Elsesser, Douglas Krakower, David S Novak, James E Egan, Ronald Stall, Steve Safren, Kenneth H Mayer. 1. *Department of Medicine, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA;†Department of Epidemiology, Harvard School of Public Health, Boston, MA;‡Institute for Community Health Promotion, Brown University School of Public Health, Providence, RI;§The Fenway Institute, Fenway Health, Boston, MA;¶Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA;#On-Line Buddies, Cambridge, MA;**Department of Behavioral and Community Health Sciences, University of Pittsburgh, Pittsburgh, PA; and††Department of Psychology, University of Miami, Coral Gables, FL.
Abstract
INTRODUCTION: Pre-exposure prophylaxis (PrEP), taken as a single daily coformulated pill containing tenofovir -emtricitabine, is a promising intervention to reduce the likelihood of HIV acquisition in at-risk individuals, including men who have sex with men. Little is known about the acceptability of less than daily, intermittent PrEP regimens. METHODS: We conducted an online survey of North American men who have sex with men to characterize their sexual frequency and planning behaviors and correlate these with PrEP dosing preferences. RESULTS: Of the 3217 respondents who completed the survey, 46% reported engaging in unplanned condomless anal intercourse (CAI) at least once in previous 3 months and 8% reported engaging in CAI more than once per week. In multivariable analysis, reporting unplanned CAI was associated with lower educational level, identifying as homosexual/gay as compared with bisexual, being in a monogamous relationship, having a higher self-perceived risk of HIV acquisition, reporting higher income, engaging in CAI more than five times in the last 3 months, and not having visited a health care provider in the previous year. Frequent CAI (>1 time per week) was associated with being younger, identifying as homosexual/gay as compared with bisexual, being in a monogamous relationship, and having a higher self-perceived risk of HIV. Having only planned sex over the last 3 months was associated with a preference for event-based PrEP, whereas having frequent or unplanned CAI was associated with a preference for daily or time-driven PrEP regimens, respectively. CONCLUSION: Our findings suggest that preferences for different PrEP regimens are associated with the sexual frequency and planning behaviors of potential users.
INTRODUCTION: Pre-exposure prophylaxis (PrEP), taken as a single daily coformulated pill containing tenofovir -emtricitabine, is a promising intervention to reduce the likelihood of HIV acquisition in at-risk individuals, including men who have sex with men. Little is known about the acceptability of less than daily, intermittent PrEP regimens. METHODS: We conducted an online survey of North American men who have sex with men to characterize their sexual frequency and planning behaviors and correlate these with PrEP dosing preferences. RESULTS: Of the 3217 respondents who completed the survey, 46% reported engaging in unplanned condomless anal intercourse (CAI) at least once in previous 3 months and 8% reported engaging in CAI more than once per week. In multivariable analysis, reporting unplanned CAI was associated with lower educational level, identifying as homosexual/gay as compared with bisexual, being in a monogamous relationship, having a higher self-perceived risk of HIV acquisition, reporting higher income, engaging in CAI more than five times in the last 3 months, and not having visited a health care provider in the previous year. Frequent CAI (>1 time per week) was associated with being younger, identifying as homosexual/gay as compared with bisexual, being in a monogamous relationship, and having a higher self-perceived risk of HIV. Having only planned sex over the last 3 months was associated with a preference for event-based PrEP, whereas having frequent or unplanned CAI was associated with a preference for daily or time-driven PrEP regimens, respectively. CONCLUSION: Our findings suggest that preferences for different PrEP regimens are associated with the sexual frequency and planning behaviors of potential users.
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