Table 2.

Multivariate analyses of the relationship between substance use and high-risk sexual behaviors among 3,588 MSM in Beijing, China.

Drug and alcohol use	Infection status		Sexual risk behaviors with male partners				Sexual risk behaviors with female partners
	HIV infectiona	Syphilis infectiona	Condomless lAI in the past 3 monthsa	Condomless RAI in the past 3 monthsa	Lifetime male sexual partners (<10 vs. ≥10)a	Multiple male partners in the past 3 months (≤1 vs. ≥2)a	Having sex with female partners in lifetime??	Having sex with female partners in the past 3 monthsa	Having condomless sex with female partners in the past 3 monthsa
	aOR(95% CI)	aOR(95% CI)	aOR(95% CI)	aOR(95% CI)	aOR(95% CI)	aOR(95% CI)	aOR(95% CI)	aOR(95% CI)	aOR(95% CI)
Drug use (binary)	1.5 (1.2,1.8)**	1.2(0.9,1.7)	1.2(1.0,1.5)*	1.9(1.6,2.2)***	2.1(1.8,2.4)***	2.3(2.0,2.7)*** ***	1.0(0.8,12)	0.7(0.5,0.9)**	0.8(0.5,1.1)
Alcohol (binary)	1.0(0.8,1.2)	1.1(0.8,1.4)	1.7(1.5,2.0)***	1.3(1.1,1.6)***	12(1.0,1.4)*	1.1(0.9,12)	1.9(1.6,22)***	1.5(12,1.9)**	1.3(1.0,1.8)
Alcohol (ordinal)
Never	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
≤1/month	0.8(0.7,1.0)	1.0(0.7,13)	1.5(1.2,1.8)***	1.3(1.1,1.6)**	1.1(0.9,1.3)	1.0(0.8,1.1)	1.5(1.3,1.9)***	12(0.89,1.6)	12(0.8,1.7)
2–4/month	1.2(0.9,1.6)	1.2(0.8,1.7)	2.0(1.6,2.5)***	1.3(1.05,1.7)*	1.4(1.1,1.7)**	12(1.0,1.5)	2.1(1.7,2.7)***	1.8(125,2.4)***	12(0.8,1.8)
>2-3/week	1.1(0.8,1.5)	12(0.8,1.8)	2.3(1.7,3.0)***	1.4(1.1,1.9)*	1.3(1.0,1.7)*	1.3(1.0,1.6)	3.0(22,4.0)***	1.9(1.3,2.8)***	1.8(12,2.8)**

aOR, adjusted odds ratio; CI, confidence interval; RAI: receptive anal intercourse; IAI: insertive anal intercourse.

^aAdjusted for demographic variables (age, ethnicity, marriage, education, employment, income, years of living in Beijing, Beijing Hukou (or household registration), age of sex debut, health insurance).

^*p < 0.05,

^**p < 0.01,

^***p < 0.001.