Table 2 Univariate and multivariate analyses of participants characteristics associated with incident HIV infection among Kunming MSM (N=378)

Age(years)

≥30

4

143.2

2.8

18-29

7

169.0

4.1

2.0(0.6-6.9)

-

Ethnicity

Han

6

262.8

2.3

Non-Han

5

49.3

10.1

4.2(1.3-13.8)

5.7(1.5-21.5)

Occupations

Other occupations

4

218.3

1.8

Male students

4

51.7

7.7

4.1(1.1-16.3)

5.7(1.3-24.3)

Male retirees

3

42.1

7.1

4.0(1.0-17.8)

4.1(1.0-18.6)

Preferred major sexual roles with male sexual partners

Single insertive anal sexual role

1

125.7

0.8

Receptive or both insertive and receptive anal sexual role

10

186.4

5.4

6.6(0.8-51.6)

-

Main location to seek homosexual partners

Bar/night club/tearoom

2

35.1

5.7

Bathing room/sauna/massage room

3

25.3

11.9

2.2(0.4-13.0)

-

Park/public restroom/square

0

44.4

0.0

NA

-

Internet

5

139.6

3.6

0.6(0.1-3.1)

-

Other ways

1

67.7

1.5

0.4(0.0-2.8)

-

The number of occasional male sexual partners in recent 6 months

0-1

5

168.3

3.0

>1

6

143.8

4.2

1.5(0.4-4.8)

-

Bleeding experience after receptive anal intercourse

No

5

262.6

1.9

Yes

6

49.6

12.1

6.1(1.9-20.1)

7.6(2.2-26.6)

Condom using conditions for the last receptive anal intercourse

No

6

239.5

2.5

Yes

5

72.6

7.7

2.8(0.9-9.3)

-

Buying sex from males in recent 6 months

No

10

296.2

3.4

Yes

1

15.9

6.3

1.9(0.2-14.5)

-

Selling sex from males in recent 6 months

No

1

301.8

0.3

Yes

0

10.4

0.0

NA

-

Illegal drug using behaviors

No

11

304.0

3.6

Yes

0

8.2

0.0

NA

-

Male circumcision

No

9

213.5

4.2

Yes

2

98.6

2.0

0.8(0.1-6.0)

-

Syphilis infection

No

8

291.6

2.7

Yes

3

20.5

14.6

5.6(1.5-21.3)

17.7(3.6-86.4)

Failed to use condom with regular male sexual partners during receptive anal sex in the follow-up

No

2

94.3

2.1

Yes

9

217.7

4.1

1.9(0.4-8.8)

-

Failed to use condom with regular male sexual partners during receptive anal sex in the follow-up

No

1

96.9

1.0

Yes

10

215.2

4.6

4.4(0.6-34.7)

-