Table 2 Factors associated with study participants within genetic transmission networks in Ningbo, China

Gender

2.231

0.135

Male

375(84.5)

1.000

Female

69(15.5)

1.252(0.815 ~ 1.923)

0.306

Age (years)

4.778

0.029

< 25

55(12.4)

1.00

25~

153(34.5)

1.248(0.814 ~ 1.914)

0.310

40~

152(34.2)

1.322(0.777 ~ 2.247)

0.303

≥ 60

84(18.9)

2.038(1.072 ~ 3.872)

0.030

Marital status

1.606

0.448

Single

161(36.3)

1.000

Married

200(45.0)

0.918(0.619 ~ 1.363)

0.673

Divorce or death

83(18.7)

0.784(0.502 ~ 1.226)

0.286

Education level

0.040

0.842

Middle school or less

273(61.5)

1.000

High school or above

171(38.5)

1.175(0.851 ~ 1.621)

0.328

Nationality

1.261

0.262

Han

429(96.6)

1.000

Others

15(3.4)

0.721(0.366 ~ 1.420)

0.344

Location

1.873

0.171

Local

204(45.9)

1.000

Non local

240(54.1)

0.950(0.712 ~ 1.267)

0.728

Route of infection

3.257

0.196

Heterosexual transmission

248(55.9)

1.000

Homosexual transmission

195(43.9)

0.888(0.642 ~ 1.228)

0.472

Others

1(0.1)

0.619(0.058 ~ 6.588)

0.691

Number of sexual partners in a life time

5.253

0.022

<2

137(30.9)

1.000

2~

307(69.1)

0.747(0.549 ~ 1.017)

0.064

HIV-1 genotypes

27.539

< 0.001

CRF01_AE

112(25.2)

1.000

CRF07_BC

211(47.5)

2.147(1.582 ~ 2.914)

< 0.001

CRF08_BC

30(6.8)

1.459(0.840 ~ 2.536)

0.180

C

25(5.6)

1.669(0.922 ~ 3.022)

0.091

CRF55_01B

25(5.6)

2.217(1.201 ~ 4.091)

0.011

Others^*

41(9.2)

1.815(0.936 ~ 2.981)

0.069

CD4,cell/ul

6.581

0.037

< 200

155(34.9)

1.000

200~

250(56.3)

1.305(0.982 ~ 1.735)

0.067

≥ 500

39(8.8)

0.933(0.584 ~ 1.491)

0.773

Transmitted drug resistance

2.483

0.115

Sensitive

423(95.3)

1.000

Resistance

21(4.7)

1.384(0.784 ~ 2.444)

0.262