Table 1

Sociodemographic characteristics of the 511 study participants in the cohort of migrant MSM in Beijing

VariablesnPer cent
Overall, N511100
Age
 Median (years)29
 18–2414929.16
 ≥2536270.84
Ethnicity
 Han48294.32
 Minority295.68
Marital status
 Single33164.77
 Married11422.31
 Cohabiting with male or female sex partner30.59
 Separated or divorced or widowed6312.33
Duration of stay in Beijing
 <1 year17333.85
 ≥1 year33866.14
Educational level
 High school and below37473.19
 College and above13726.81
Monthly income (US$)
 <30027654.01
 ≥30023545.99
Self-reported sexual orientation
 Homosexual31060.67
 Heterosexual81.57
 Bisexual19237.57
 Other10.2
Self-reported risk of HIV infection
 Impossible8216.05
 Improbable22544.03
 Possible7414.48
 Probable152.94
 No idea11522.5
Age of sexual debut (median, years)20
Gender of first sexual partner
 Male30058.71
 Female21141.29
Age of first anal intercourse (median, years)22
Had first anal intercourse before 15 years of age132.54
Number of male sex partners in the last 6 months (median)3
Number of female sex partners in the last 6 months (median)0
Oral sex with regular partners with consistent condom use in the past 6 months226.73
Oral sex with casual partners with consistent condom use in the past 6 months267.95
Anal sex with regular partners with consistent condom use in the past 6 months6713.11
Anal sex with casual partners with consistent condom use in the past 6 months6618.7
Ever had commercial sexual behaviour6111.94
Ever had group sex5911.55
Alcohol use prior to sex16632.49
Ever had STDs8416.44
Have ever received condoms40278.67
Have ever received lubricant33365.17
Have ever received peer education12123.68
Have ever received examination or treatment for STD9418.4
Have ever received VCT services26852.45
Have ever received educational materials on AIDS/STD30259.1
  • MSM, men who have sex with men; STD, sexually transmitted disease; VCT, voluntary counselling and testing.