A Theory-Based Exploration of Condomless Anal Intercourse Intention Among Young Men Who Have Sex with Men of Different Sexual Roles in Taiwan
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In recent years, men who have sex with men (MSM) have accounted for over 80% of all new HIV cases in Taiwan. More than 70% of new cases have occurred in those aged 15–34 years. Condomless anal intercourse (CAI) has been identified as the main route of HIV transmission among MSM. To systematically examine CAI intention and associated factors among young MSM in Taiwan, an anonymous online survey based on the Theory of Planned Behavior (TPB) was conducted. Data from 694 MSM aged 15–39 years were included in the analysis. This study found that, overall, all five TPB factors (i.e., attitudes toward positive and negative outcomes regarding CAI, perceived support for CAI from important others, and perceived behavioral control of CAI under facilitating and constraining conditions) were significantly associated with CAI intention. When data were stratified by sexual role (i.e., receptive, versatile, and insertive), the associations between TPB factors and CAI intention varied. Of the five TPB factors, positive attitudes toward positive outcomes regarding CAI were most strongly associated with high CAI intention (AOR 5.68 for all young MSM; AOR 3.80–15.93, depending on sexual role). Findings from this study could inform the development of theory-driven HIV prevention programs as well as future research and practice. These results also highlight the importance of tailoring HIV prevention initiatives for young MSM of different sexual roles to optimize the program effectiveness.
KeywordsCondomless anal intercourse Men who have sex with men (MSM) Theory of Planned Behavior Sexual roles HIV Taiwan Sexual orientation
Preparation of this manuscript was supported in part by grants MOST 103-2410-H-002-225-MY2, NSC 102-2410-H-002-220-, and NSC 100-2410-H-002-174-MY2 from the Ministry of Science and Technology, Taiwan (formerly, National Science Council) awarded to Dr. Jiun-Hau Huang.
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