Table 2 Correlates of HIV/HCV co-infection using bivariate (OR) and multivariate logistic regression (AOR) modeling

IDU transmission

117.18 (33.00–416.13)

<0.0001

46.25 (8.39–254.88)

<0.001

Did not complete high school

19.32 (8.32–44.87)

<0.0001

17.39 (4.45–67.96)

<0.001

Blood transmission

0.03 (0.01–0.13)

<0.0001

0.08 (0.01–0.57)

0.005

HCV genotype 6a

6.02 (2.97–12.22)

<0.0001

HCV genotype 3a

3.83 (1.21–12.14)

0.023

Male

3.20 (1.62–6.31)

0.001

Guangdong province

3.07 (1.27–7.41)

0.013

Increasing age

0.97 (0.94–0.997)

0.031

Unknown HCV risk factor

0.18 (0.05–0.65)

0.009

HCV genotype 1b

0.13 (0.07–0.26)

<0.0001