Table 1.

Comparison of baseline demographic characteristics among MSM in Yangzhou and Guangzhou, China

	Yangzhou		Guangzhou
Characteristic	n	%	n	%	Adjusted χ2	p
Age (years)					70.17	<0.001
<20	5	1.6	6	2.0
20–40	209	65.9	281	92.1
>40	103	32.5	18	5.9
Education level					134.77	<0.001
Middle school or lower	110	34.7	26	8.6
High school	135	42.6	73	23.9
College or higher	72	22.7	206	67.5
Marital status					111.62	<0.001
Single	118	37.2	239	78.4
Married	187	59.0	56	18.3
Divorced	12	3.8	10	3.3
Ethnicity					1.13	0.287
Han	311	98.1	294	96.4
Other	6	1.9	11	3.6
Sexual orientation					11.29	<0.001
Homosexual	134	42.3	171	56.0
Bisexual or heterosexual	183	57.7	134	44.0
Venue where sex is found					321.29	<0.001
Bathhouse	170	53.6	5	1.6
Bar	66	20.8	8	2.6
Internet	62	19.6	241	79.0
Other	19	6.0	51	16.6
Commercial sex in the past 6 months					4.33	0.037
Yes	29	9.1	14	4.6
No	288	90.9	291	95.4
Condom use during last commercial sex encounter					0.05	0.812
Yes	17	58.6	8	57.1
No	12	41.4	6	42.9
Anal sex with men in the past 6 months					1.88	0.170
Yes	202	63.7	177	58.0
No	115	36.3	128	42.0
Condom use during last anal sex with a man					6.12	0.013
Yes	140	69.3	100	74.8
No	62	30.7	77	25.2
Sex with female partners in the past 6 months					115.34	<0.001
Yes	188	59.3	52	17.0
No	129	40.7	253	83.0
Condom use during last sexual encounter with female partner					0.05	0.818
Yes	56	29.8	14	26.9
No	132	70.2	38	73.1
Illegal drug use in the past 12 months					0.06	0.796
Yes	6	1.9	4	1.3
No	311	98.1	301	98.7
STD-associated symptoms in the past 12 months					2.13	0.144
Yes	28	8.8	39	12.8
No	289	91.2	266	87.2
Having been diagnosed with an STD in the past 12 months					30.78	<0.001
Yes	30	9.5	82	26.9
No	287	90.5	223	73.1
Getting sexual health services in the past 12 months					73.84	<0.001
Yes	175	55.2	265	86.9
No	142	44.8	40	13.1
Syphilis positive					168.6	<0.001
Yes	98	30.9	20	6.5
No	219	69.1	285	93.5
HIV positive					10.52	<0.001
Yes	46	14.5	19	6.2
No	271	85.4	286	93.8

STD: sexually transmitted disease.