Participants’ demographic characteristics and study retention
Between 16 November 2020 and 2 April 2021, 118 people signed up for initial eligibility screening, among whom 75 completed the virtual screening, and 70 GBMSM were successfully enrolled (age mean = 28.0, SD = 6.1). Participants’ baseline demographic characteristics and psychosocial variables, and the standardized differences of these variables between two groups are presented in Tables 