Table 4.

Factors significantly associated with MBs’ consistent condom use with different types of partners

Types of partners	Factors	Consistent condom use			Unadjusted		Multiple logistic regressiona
		Use (n)	Total (N)	n/N (%)	OR (95% CI)	P-value	OR (95% CI)	P-value
Male clients (N = 414)	Gender of sex partners in the last six months
	Male only	143	182	78.6	1.00	–	1.00	–
	Both	198	232	85.3	1.59 (0.96,2.64)	0.074	1.77 (1.01, 3.11)	0.046
	Monthly income (CNY)				1.32 (1.08, 1.61)	0.006	1.31 (1.05, 1.62)	0.014
	≤2000	60	85	70.6
	2001–3000	78	95	82.1
	3001–4000	72	86	83.7
	4001–7000	89	96	92.7
	≥7001	42	52	80.7
	STI history
	No	314	365	86.0	1.00	–	1.00	–
	Yes	27	49	55.1	0.20 (0.11, 0.38)	0.000	0.15 (0.08, 0.31)	0.000
	Number of male casual partners in the past 6 months				0.88 (0.70, 1.11)	0.275	0.67 (0.53, 0.85)	0.001
	0	214	239	89.5
	1–2	48	67	71.6
	3–5	37	47	78.7
	≥6	40	57	70.2
Female clients (N = 110)	Self-identified sexual orientation
	Homosexual	13	23	56.5	1.00	–	1.00	–
	Heterosexual	19	30	63.3	1.33 (0.44, 4.03)	0.616	2.32 (0.67,8.02)	0.185
	Bisexual	36	45	80.0	3.08 (1.02, 9.26)	0.046	10.81 (2.51,46.49)	0.001
	Uncertain	8	12	66.7	1.54 (0.36, 6.60)	0.562	3.20 (0.65,15.81)	0.154
	Venue type
	Dorm	39	53	73.6	1.00	–	1.00	–
	Gay bar	28	45	62.2	0.59 (0.25, 1.39)	0.230	0.34 (0.12, 0.95)	0.040
	Massage parlor	9	12	75.0	1.08 (0.25, 4.56)	0.920	1.52 (0.29,7.93)	0.619
	STI history
	No	70	95	73.7	1.00	–	1.00	–
	Yes	6	15	40.0	0.24 (0.08, 0.74)	0.013	0.13 (0.04, 0.50)	0.003
	Number of girlfriends in the past 6 months				0.78 (0.53, 1.13)	0.188	0.55 (0.35, 0.88)	0.012
	0	29	42	69.1
	1	29	36	80.6
	2	9	15	60.0
	≥3	9	17	52.9
Paid MBs (N = 127)	STI history
	No	93	111	83.8	1.00	–	1.00	–
	Yes	5	16	31.3	0.09 (0.03, 0.28)	0.000	0.09 (0.02, 0.33)	0.000
	Monthly income (CNY)				1.69 (1.19, 2.40)	0.004	1.71 (1.15, 2.54)	0.008
	≤2000	19	31	61.3
	2001–3000	20	27	74.1
	3001–4000	15	21	71.4
	4001–7000	36	39	92.3
	≥7001	8	9	88.9
	Number of male casual partners in the last 6 months				0.58 (0.41, 0.84)	0.004	0.57 (0.37, 0.88)	0.011
	0	63	71	88.7
	1–2	17	27	63.0
	3–5	7	11	63.6
	≥6	11	18	61.1
Female sex workers (N = 88)	STI history
	No	54	70	77.1	1.00	–	1.00	–
	Yes	8	18	44.4	0.24 (0.08, 0.70)	0.009	0.17 (0.05, 0.56)	0.004
	Duration of selling sex (yrs)				0.78 (0.54, 1.13)	0.189	0.69 (0.46, 1.02)	0.065
	Monthly income (CNY)				1.27 (0.91, 1.77)	0.163	1.58 (1.06, 2.33)	0.023
	≤2000	9	17	52.9
	2001–3000	11	15	73.3
	3001–4000	16	21	76.2
	4001–7000	11	16	68.8
	≥7001	15	19	79.0
Boyfriends (N = 134)	Gender of first sexual partner
	Female	56	76	73.7	1.00	–	1.00	–
	Male	29	58	50.0	0.36 (0.17, 0.74)	0.005	0.25 (0.10, 0.61)	0.003
	STI history
	No	78	111	70.3	1.00	–	1.00	–
	Yes	7	23	30.4	0.19 (0.07, 0.49)	0.001	0.20 (0.06, 0.70)	0.012
	Education level				2.26 (1.26, 4.05)	0.006	2.62 (1.36, 5.02)	0.004
	Elementary school	0	1	0.0
	Middle school	19	36	52.8
	High school	40	56	71.4
	Vocational school, college, or above	20	24	83.3
Girlfriends (N = 171)	Gender of sex partners in the past 6 months
	Male only	15	19	79.0	1.00	–	1.00	–
	Male and female	60	152	39.5	0.17 (0.06, 0.55)	0.003	0.15 (0.04, 0.59)	0.007
	STI history
	No	73	150	48.7	1.00	–	1.00	–
	Yes	2	21	9.5	0.11 (0.02, 0.49)	0.004	0.05 (0.01, 0.44)	0.007
	Venue types
	Dorm	33	92	35.9	1.00	–	1.00	–
	Gay bar	26	52	50.0	1.79 (0.90, 3.57)	0.099	2.17 (0.94, 5.01)	0.068
	Massage parlor	16	27	59.3	2.60 (1.08, 6.26)	0.033	2.89 (1.09, 7.64)	0.032
	Education level				1.84 (1.15, 2.95)	0.012	1.73 (1.02, 2.94)	0.042
	Elementary school	3	4	75.0
	Middle school	12	48	25.0
	High school	40	79	50.6
	Vocational school, college, or above	14	22	63.6
Male casual partners (N = 168)	STI history
	No	15	51	29.4	1.00	–	1.00	–
	Yes	9	117	7.7	0.20 (0.08, 0.50)	0.001	0.20(0.08, 0.50)	0.001
Female casual partners (N = 133)	STI history
	No	20	55	36.4	1.00	–	1.00	–
	Yes	4	78	5.1	0.09 (0.03, 0.30)	0.000	0.09 (0.03, 0.30)	0.000

^aAttempted to control for potential confounders such as age, education level, income, duration of being MB, HIV/AIDS knowledge