Table 3 Factors associated with HIV infection among MSM in Zhengzhou

Age

≤25(Ref)

12.0

125

1

26-35

13.9

137

1.18(0.57, 2.44)

>35

13.5

126

1.14(0.54, 2.41)

Marital status

Single (Ref)

12.1

173

Married

15.5

181

1.05(0.22,4.88)

Separated /divorced/widowed

5.9

34

0.65(0.36,7.50)

Residency

Local province (Ref)

10.1

298

1

1

Other province

23.3

90

2.72 (1.47, 5.05)*

5.53(1.14, 6.25)*

Ethnicity

Han (Ref)

12.0

316

1

Others

18.1

72

1.61 (0.81,3.21)

Time of living in Zhengzhou

<3 month (Ref)

18.9

74

1

3 month-1 year

11.1

54

0.72 (0.66,3.41)

>1 year

11.9

260

0.92 (0.37,2.34)

Education level

Junior high school or lower (Ref)

13.8

80

1

Senior high school

15.8

158

1.44(0.63,3.29)

College or above

10.0

150

0.30 (0.12,0.94)*

appropriate responses to the 8 HIV-related knowledge items≥ 6

No (Ref)

17.9

28

1

Yes

14.6

314

0.67(0.24,1.89)

Had sex with male in the past 6 months

No(Ref)

8.7

46

1

Yes

13.7

342

1.63(0.56,4.75)

Condom use in the last sex with male

No(Ref)

19.1

115

1

1

Yes

11.0

227

0.52(0.28,0.98)*

0.35(0.14,0.87) *

Condom use during sex with male in the past 6 months

Never(Ref)

16.4

61

1

Sometimes

15.0

160

0.94 (0.55,2.10)

Always

10.7

121

0.27(0.03,2.12)

Had commercial sex with male in the past 6 months

No(Ref)

9.1

33

1

Yes

13.5

355

1.56(0.46,5.32)

Had sex with female in the past 6 months

No(Ref)

15.2

197

1

Yes

11.0

191

0.69(0.38,1.25)

Condom use in the last sex with female

No(Ref)

15.3

118

1

1

Yes

4.1

73

0.24(0.07,0.84)*

0.16 (0.08,0.90)*

Condom use during sex with female in the past 6 months

Never (Ref)

13.8

58

1

Sometimes

10.3

107

0.97 (0.24,2.73)

Always

8.0

26

0.95 (0.23,4.01)

Receipt of condoms

No(Ref)

18.1

149

1

Yes

10.0

239

0.50 (0.28,0.96)*

0.15 (0.02,0.87)*

Received peer education

No(Ref)

14.5

179

1

Yes

12.0

209

0.80 (0.41,1.43)

Received HIV checks in the last year

No(Ref)

13.3

270

1

Yes

12.7

118

0.95(0.50,1.79)

Diagnosed STDs in the last year

No (Ref)

13.0

353

1

Yes

14.3

35

1.05 (0.56,2.00)

Syphilis status

Negative(Ref)

11.5

348

1

1

Positive

27.5

40

2.92(1.34,6.30)*

4.91 (1.70,12.02)*