Risk of fecal incontinence following receptive anal intercourse : survey of 21,762 men who have sex with men Garros, A. Bourrely, M. /Sagaon Teyssier, Luis Sow, A. Lydie, N. Duchesne, L. Higuero, T. Damon, H. Velter, A. Abramowitz, L. Fecal incontinence Receptive anal intercourse Men who have sex with men Background: The prevalence of receptive anal intercourse (RAI) is increasing. A few studies, with heterogeneous designs, have investigated the associated risk of fecal incontinence (FI). Aim: The primary objective of this study was to determine FI prevalence in a population of men who have sex with men (MSM) engaging in RAI. The secondary objective was to identify risk factors for severe FI. Methods Outcomes: An online survey of 24,308 MSM was performed in 2019. Demographic and socioeconomic data were collected, together with information about RAI sexual practices, and FI defined by: "During the last month, have you experienced any involuntary leakage of stools?" Results Clinical Implications: In total, 1,734 (8%) of the 21,762 participants reported FI. Mean age was 35.3 years. The prevalence of FI was correlated with RAI frequency: 12.7% (if RAI >= 1 /wk) versus 5.7% (if no RAI). In multivariate analysis, the factors associated with FI were age (OR: 1.01), low socioeconomic status (OR 1.32 to 1.40), HIV-seropositivity (OR: 1.78), high RAI frequency (OR: 1.64), chemsex (OR: 1.67) and fist-fucking (OR: 1.61). Strengths and Limitations: Main strengths of our study are population size and assessment of detailed modalities of sexual practices. Main limitations are the use of a convenience non-random sample and the assessment of FI only during the past month. Conclusion: This study of a large MSM population, highlights risk factors for FI among RAI practices: RAI >= 1/wk, chemsex, fist-fucking, low socioeconomic status. 2021 text https://www.documentation.ird.fr/hor/PAR00023548 PAR00023548 Garros A., Bourrely M., Sagaon Teyssier Luis, Sow A., Lydie N., Duchesne L., Higuero T., Damon H., Velter A., Abramowitz L.. Risk of fecal incontinence following receptive anal intercourse : survey of 21,762 men who have sex with men. 2021, 18 (11), 1880-1890 EN