[Willingness to use the three types of pre-exposure prophylaxis and associated factors among men who have sex with men in Chengdu].

To investigate the willingness to use three types of pre-exposure prophylaxis (PrEP) and its associated factors among MSM in Chengdu. A total of 793 MSM were recruited through Chengdu Tongle Health Consultation Service Centre between November 2021 to January 2022. Data were collected, including demographic characteristics, sexual behaviors in the last six months, PrEP-related stigma, HIV anticipated stigma, MSM internalized stigma, and willingness to use three types of PrEP. Univariate and multivariate logistic regression models were conducted to investigate the associated factors of willingness in using the three types of PrEP. Among 793 participants, willingness to take on-demand PrEP was higher (68.3%). Higher education and multiple sexual partners increased the willingness to use oral PrEP, higher education [compared with junior high school or below, high school or technical secondary school (a=2.43, 95%: 1.13-5.21), junior college (a=2.67, 95%: 1.27-5.61), bachelor degree (a=3.21, 95%: 1.52-6.74), master degree or above (a=3.77, 95%: 1.54-9.26)], multiple sexual partners (a=1.54, 95%: 1.12-2.11) were positively associated with daily oral PrEP. HIV anticipated stigma was positively associated with the willingness in using all three types of PrEP: daily oral PrEP (a=1.07, 95%: 1.02-1.12), on-demand PrEP (a=1.09, 95%: 1.03-1.15), and injectable PrEP every 8 week (a=1.06, 95%: 1.01-1.11). The overall willingness in using PrEP in MSM in Chengdu is relatively high, and the promotion of PrEP is highly feasible. In the future, we should continue to promote publicity and education on HIV and PrEP-related knowledge in this population, improve the cognitive level, and guide MSM to establish the correct motivation for PrEP use.