Table 3.

Multivariate Logistic regression model analysis of HCV associated factors among pregnant women in three provinces.

Classification	β value	Standard error	Wald χ2	P value	OR value (95% CI )
Regions
Guangdong Province					1.00
Hunan Province	− 0.73	0.22	10.70	0.0011	0.49 (0.31–0.75)
Chongqing City	− 0.73	0.21	11.91	0.0006	0.48 (0.32–0.73)
Age
< 25					1.00
25–29	1.11	0.59	3.49	0.0617	3.04 (0.95–9.75)
30–34	0.80	0.60	1.79	0.1810	2.23 (0.69–7.22)
35–39	1.67	0.61	7.63	0.0057	5.32 (1.63–17.39)
≥ 40	1.95	0.69	7.93	0.0049	7.02 (1.81–27.23)
Syphilisa	2.90	0.34	73.11	< 0.001	18.16 (9.34–35.29)

^a"No" was used as the reference group.