Table 3.
Prevalence of unprotected anal Intercourse (UAI) and associated predictors by regular or casual male sex partners among men who have sex with men in the past six months (P6M) In Beijing, China
| Variable | Anal sex with the regular male sex partners | Anal sex with the casual male sex partners | |||||||
|---|---|---|---|---|---|---|---|---|---|
| N | UAI (%) | OR (95% CI) | AOR (95% CI) | N | UAI (%) | OR (95% CI) | AOR (95% CI) | ||
| Overall | 336 | 78.6 | 361 | 63.2 | |||||
| Age (median, years) | ≤26 | 215 | 76.7 | 1.0 | 225 | 58.7 | 1.0 | ||
| >26 | 121 | 81.8 | 1.36(0.78–2.39) | 136 | 70.6 | 1.69(1.07–2.66)b | |||
| Ethnicity | Han | 313 | 79.6 | 1.0 | 340 | 63.5 | 1.0 | ||
| Minority | 23 | 65.2 | 0.48(0.20–1.19) | 21 | 57.1 | 0.76(0.31–1.87) | |||
| Education | Senior high school or Iess | 110 | 78.2 | 1.0 | 165 | 64.8 | 1.0 | ||
| Some college or higher | 226 | 78.8 | 1.03(0.60–1.80) | 196 | 61.7 | 0.87(0.57–1.34) | |||
| Monthly income | >200 US dollars | 170 | 73.5 | 1.00 | 1.00 | 178 | 57.9 | 1.00 | |
| ≤200 US dollars | 166 | 83.7 | 1.85(1.08–3.16)b | 1.74(1.01–2.98) | 183 | 68.3 | 1.57(1.02–2.41)b | ||
| Married/Cohabited with male or female partners | |||||||||
| No | 262 | 77.1 | 1.0 | 310 | 62.3 | 1.0 | |||
| Yes | 74 | 83.8 | 1.53(0.78–3.04) | 51 | 68.6 | 1.33(0.70–2.50) | |||
| Had Beijing residence card | |||||||||
| No | 210 | 77.1 | 1.0 | 244 | 63.1 | 1.0 | |||
| Yes | 126 | 81.0 | 1.26(0.73–2.18) | 117 | 63.2 | 1.00(0.64–1.59) | |||
| Ever found male sex partners through Internet | |||||||||
| No | 81 | 76.5 | 1.0 | 114 | 64.9 | 1.0 | |||
| Yes | 255 | 79.2 | 1.17(0.64–2.12) | 247 | 62.4 | 0.90(0.56–1.42) | |||
| Ever found male sex partners through bathhouse, public washroom, and park | |||||||||
| No | 267 | 76.0 | 1.0 | 1.0 | 250 | 56.0 | 1.0 | 1.0 | |
| Yes | 69 | 88.4 | 2.40(1.09–5.29)b | 2.22(1.00–4.91) | 111 | 79.3 | 3.01(1,78–5.07)a | 3.02(1.76–5.17) | |
| Number of male sex partners, P6M | |||||||||
| ≤2 | 205 | 80.0 | 1.0 | 109 | 54.1 | 1.0 | |||
| >2 | 131 | 76.3 | 0.81(0.48–1.37) | 252 | 67.1 | 1.72(1.09–2.73)b | |||
| Participated in male group sex, P6M | |||||||||
| No | 295 | 80.0 | 1.0 | 305 | 63.6 | 1.0 | |||
| Yes | 41 | 68.3 | 0.54(0.26–1.10) | 56 | 60.7 | 0.88(0.49–1.59) | |||
| Gave money for sex with men, P6M | |||||||||
| No | 318 | 78.3 | 1.0 | 343 | 63.3 | 1.0 | |||
| Yes | 18 | 83.3 | 1.38(0.39–4.92) | 18 | 61.1 | 0.91(0.34–2.41) | |||
| Received money for sex with men, P6M | |||||||||
| No | 308 | 79.2 | 1.0 | 318 | 65.4 | 1.0 | 1.0 | ||
| Yes | 28 | 71.4 | 0.66(0.28–1.56) | 43 | 46.5 | 0.46(0.24–0.87)b | 0.34(0.17–0.68) | ||
| Number of male sex partners of insertive anal intercourse, P6M | |||||||||
| ≤2 | 260 | 78.1 | 1.0 | 230 | 59.6 | 1.0 | |||
| >2 | 76 | 80.3 | 1.14(0.60–2.16) | 131 | 69.5 | 1.54(0.98–2.44) | |||
| Times of the insertive anal sex with male sex partners, P6M | |||||||||
| ≤5 | 184 | 76.1 | 1.0 | 228 | 64.9 | 1.0 | |||
| >5 | 152 | 81.6 | 1.39(0.82–2.37) | 133 | 60.2 | 0.82(0.52–1.27) | |||
| Number of male sex partners of receptive anal intercourse, P6M | |||||||||
| ≤2 | 251 | 78.9 | 1.0 | 192 | 57.3 | 1.0 | 1.0 | ||
| >2 | 85 | 77.6 | 0.93(0.51–1.68) | 169 | 69.8 | 1.72(1.11–2.67) á | 1.80(1.13–2.86) | ||
| Times of the receptive anal sex with male sex partners, P6M | |||||||||
| ≤5 | 181 | 76.8 | 1.0 | 214 | 63.1 | 1.0 | |||
| >5 | 155 | 80.6 | 1.26(0.74–2.13) | 147 | 63.3 | 1.01(0.65–1.56) | |||
| Used Illicit drugs, P6M | No | 329 | 79.3 | 1.0 | 348 | 63.8 | 1.0 | ||
| Yes | 7 | 42.9 | 0.20(0.04–0.89)b | 13 | 46.2 | 0.49(0.16–1.48) | |||
OR: odds ratio; CI: confidence interval; AOR: adjusted odds ratio
a
P<0.01
b
0.01<P<0.05