Table 3.

Factors associated with unprotected sex with non-regular partners in the past 30 days

Independent Variable	COR (95% CI)	P value	AOR (95% CI)	P value
Age (years)
<25	1.00
25–34	0.61 (0.27–1.40)	0.2477
≥35	0.87 (0.33–2.26)	0.7704
Gender (male)	1.10 (0.42–2.93)	0.8406
Marital status
Never married	1.00
Married or living together	1.04 (0.43–2.54)	0.9301
Divorced, separated or widowed	0.28 (0.09–0.91)	0.0347
Monthly individual income (≥ 3000 Yuan)	1.11 (0.54–2.27)	0.7820
Education (≥ senior high school)	0.28 (0.13–0.62)	0.0017	0.28 (0.11–0.77)	0.0129
Occupation
Enterprise, institutions or government	1.00		1.00
Sole business owner or service industry	1.51 (0.59–3.86)	0.3843	1.27 (0.41–3.95)	0.6831
Retired, unemployed or student	5.05 (1.10–23.15)	0.0374	4.63 (0.76–28.09)	0.0961
Domestic companions
Spouse or girl/boyfriend	1.00
Friends or other adults	0.55 (0.20–1.53)	0.2547
Alone	0.57 (0.22–1.48)	0.2485
Initiation into club drug use by non-regular sex partner	1.86 (0.78–4.42)	0.1587	2.54 (0.88–7.32)	0.0838
Drugs used in the past 30 days:
Methamphetamine	0.90 (0.45–1.80)	0.7654
Ecstasy	0.61 (0.31–1.24)	0.1714
Ketamine	1.19 (0.58–2.42)	0.6366
Magu	1.30 (0.15–11.29)	0.8105
Marijuana	3.95 (0.98–15.83)	0.0526
Cocaine	0.18 (0.02–1.37)	0.0986
Happy water	0.89 (0.89–2.97)	0.8531
Age at sexual debut (≥ 20 years old)	0.56 (0.28–1.16)	0.1192
Self-identified as gay/lesbian or bisexual	0.48 (0.24–0.98)	0.0441
Had sex with others to obtain drugs	6.49 (2.81–14.01)	<.0001	7.06 (3.00–16.63)	<.0001
Had sex under the influence of drugs in past 3 months	1.52 (0.70–3.23)	0.2896
HIV/AIDS knowledge	0.79 (0.66–0.96)	0.0154	0.77 (0.61–0.96)	0.0226
Depressive symptoms	1.05 (0.97–1.14)	0.2330

AOR = Adjusted odds ratio; CI = confidence interval; COR = crude odds ratio