Table 2.

Baseline Factors Associated with Not Using Condoms When Having Sex with Spouse or Cohabitant in the Past Year (Logistic Regression, N=685)

Factor	Univariate OR (95% CI)	Final model OR (95% CI)	p
Source of samples
Xinjiang	1.00	1.00
Guangxi	2.043 (1.384–3.017)	1.572 (0.980∼2.520)	0.060
Chongqing	1.974 (1.363–2.861)	1.856 (1.178∼2.925)	0.008
Ages
≤24	1.000	1.00
25–35	3.448 (0.947–12.551)	3.137 (0.824∼11.950)	0.094
≥36	5.976 (1.682–21.235)	5.034 (1.344∼18.856)	0.016
Marital status
Single	1.000	1.00
Married or cohabiting	2.129 (1.373–3.300)	1.684 (1.045–2.714)	0.032
Divorced/separated/widowed	1.928 (0.961–3.870)	1.419 (0.669–3.009)	0.362
Education level
Elementary school or below	1.000
Junior high school	1.178 (0.745–1.862)
Senior high school or above	0.604 (0.376–0.972)
Employment status
Not employed	1.000
Employed	0.669 (0.495–0.905)
Age at first taking drugs
≤19	1.000	1.00
20–30	1.542 (1.101–2.159)	1.191 (0.802–1.768)	0.387
≥31	2.217 (1.355–3.627)	1.795 (1.021–3.156)	0.042
Refused to answer	1.180 (0.564–2.468)	1.281 (0.553–2.965)	0.563
Received peer education on AIDS in the past year
No	1.000
Yes	0.684 (0.476–0.984)
Received any free condoms from authorities in the past year
No	1.000	1.00
Yes	0.460 (0.316–0.669)	0.497 (0.321–0.770)	0.002
Received AIDS advice or testing from authorities in the past year
No	1.000	1.00
Yes	1.662 (1.162–2.376)	1.952 (1.290–2.955)	0.002
Received educational materials on AIDS or STD in the past year
No	1.000
Yes	0.702 (0.513–0.960)

OR, odds ratio; CI, confidence interval.