BMC Public Health

Table 3 Univariate analyses of factors associated with ever having had sex with a non–regular partner among participants having sex experience

From: Unmarried male migrants and sexual risk behavior: a cross-sectional study in Shanghai, China

Variable	N = 1472	Risk sex		P-value	OR	OR (95% CI)
Variable	N = 1472	Yes	%	P-value	OR	OR (95% CI)
Age (years)
< 15	2	0	0
15–19	360	77	21.4	<0.0001	1
20–24	746	209	27.9		1.42	0.91–1.93
≥ 25	364	136	37.4		2.19	1.58–2.70
Educational attainment
Elementary school or lower	115	42	36.5	0.023	1
Junior high school	778	202	25.8		0.61	0.31–0.89
High school or above	579	178	30.7		0.77	0.55–0.97
Monthly income (dollars)
< 161. 5	107	32	29.9	0.99	1
161.6–322.9	549	156	28.4		0.93	0.81–1.07
323.0–484.5	480	137	28.5		0.94	0.85–1.04
≥ 484.6	336	96	28.5		0.94	0.83–1.06
Number of cities of migration
1	688	173	25.0	0.015	1
2	448	140	31.3		1.36	1.03–1.71
≥ 3	336	109	32.4		1.44	1.27–1.62
Age at first sexual intercourse
< 22	691	232	460	<0.0001	1
≥ 22	781	190	591		0.64	0.51–0.81
Type of city housing
Collective dormitory with others	573	140	24.4	<0.0001	1
Own room in a dormitory	417	148	35.2		1.68	1.27–2.13
Room with parents	333	104	31.2		1.41	1.08–1.77
Room rented	99	22	22.2		0.88	0.78–0.97
Other	50	8	16		0.59	0.45–0.71
Risk perception of acquiring HIV/AIDS
Very possible	428	66	15.4	<0.0001	1
Unlikely	542	158	29.2		2.25	1.78–2.75
Impossible	502	198	39.3		3.54	2.91–4.17
Exposure to pornography
Frequently	672	229	34.1	<0.0001	1
Less frequently	716	175	24.3		0.62	0.38–0.88
Never	84	18	21.4		0.53	0.31–0.76
Whether permissive regarding premarital sex
Yes	1177	329	27.9	0.21	1
No	295	93	31.5		1.19	0.90–1.57
Whether non–regular sex should be acceptable
Yes	560	179	31.9	0.028	1
No	912	243	26.6		0.77	0.61–0.97
Whether condom use could prevent HIV/AIDS
Yes	553	171	30.9	0.138	1
No	919	251	27.3		0.84	0.67–1.06
Whether or not knew someone who had or had died of HIV/AIDS and related diseases
Yes	397	69	17.4	<0.0001	1
No	1075	353	32.8		2.32	1.74–3.10
Whether or not have peers who had engaged in sex with a non–regular sex partner
No	748	196	26.2	0.034	1
Yes	724	226	31.2		1.28	1.02–1.60

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