Factors associated with sexual behaviour in men who have sex with men with obesity

Abstract

Objective: To identify factors associated with sexual behavior among men who have sex with men (MSM) with obesity.

Material and methods: A descriptive, correlational, and cross-sectional study was conducted with 440 obese MSM in northeastern Mexico. Respondent-driven sampling was used. Fourteen instruments with acceptable psychometric properties were applied, and multiple linear regression was used for statistical analysis. The study was approved by the institutional research ethics committee, adhering to confidentiality and informed consent guidelines.

Results: Sexual behavior intention (B = .43, p = .01) and self-efficacy for consistent condom use (B = .27, p = .01) were positively associated with safe sexual practices. Likewise, social support (B = .14, p = .04) and HIV risk perception (B = .18, p = .03) showed moderate positive effects. In contrast, body fat self-perception (B = −.17, p = .05), substance use (B = −.33, p = .04), and the use of digital dating platforms (B = −1.22, p = .01) were negatively associated with safe sexual behavior.

Conclusion: Intention and self-efficacy for condom use, social support, and risk perception promote safer sexual practices, whereas the use of digital platforms and substance use increase sexual risk, highlighting the need for comprehensive interventions.

Key Words: Sexual Behavior; Men Who Have Sex with Men; Obesity; Risk Factors; Sexual Health.