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Table 2 Sexual behaviors, STIs and recreational drug use of the participants in the last six months and univariate analysis of sexual behaviors and HIV seroconversion.

From: HIV incidence among men who have sex with men using geosocial networking smartphone application in Beijing, China: an open cohort study

 

All

n (%)

HIV seroconversion

χ 2

P value

Yes n (%)

No n (%)

Number of sexual partners

8.72

0.01

 0–1

1217 (62.8)

17 (45.9)

1200 (63.2)

  

 2–5

603 (31.1)

14 (37.9)

589 (31.0)

  

 ≥ 6

117 (6.0)

6 (16.2)

111 (5.8)

  

HIV-positive partners

8.12

0.02

 None

915 (47.2)

10 (27.0)

905 (47.6)

  

 Yes

87 (4.5)

4 (10.8)

83 (4.4)

  

 Not sure

935 (48.3)

23 (62.2)

912 (48.0)

  

Anal sex

1.37

0.24

 Yes

1869 (96. 5)

37 (100.0)

1832 (96.4)

  

 No

68 (3.5)

0 (0.0)

68 (3.6)

  

Using condom for anal sex

11.79

<0.01

 Never

68 (3.6)

3 (8.1)

65 (3.6)

  

 Sometimes

601 (32.2)

20 (54.1)

581 (31.7)

  

 Every time

1200 (64.2)

14 (37.8)

1186 (64.7)

  

Sex role for anal sex

9.55

0.01

 Exclusively receptive

215 (13.1)

15 (40.5)

497 (26.2)

  

 Exclusively insertive

723 (44.1)

5 (13.5)

718 (37.8)

  

 Versatile

702 (42.8)

17 (46.0)

685 (36.0)

  

Group sex

0.34

0.56

 Yes

159 (8.2)

4 (10.8)

155 (6.9)

  

 No

1778 (91.8)

33 (89.2)

1745 (93.1)

  

Heterosexual sex

0.35

0.55

 Yes

638 (51.6)

10 (58.8)

628 (51.6)

  

 No

597 (48.4)

7 (41.2)

590 (48.4)

  

Using condom for heterosexual sex

9.63

0.01

 Never

83 (13.0)

4 (40.0)

79 (12.6)

  

 Sometimes

156 (24.5)

4 (40.0)

152 (24.2)

  

 Every time

399 (62.5)

2 (20.0)

397 (63.2)

  

Diagnosed with a sexually transmitted infection

4.88

0.03

 Yes

75 (3.9)

4 (10.8)

71 (3.7)

  

 No

1862 (96.1)

33 (89.2)

1829 (96.3)

  

Recreational drug use

0.51

0.48

 Yes

382 (19.7)

9 (24.3)

373 (19.6)

  

 No

1555 (80.3)

28 (75.7)

1527 (80.4)

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