Table 1 Incidence rate by characteristics at baseline.

From: HIV burden in men who have sex with men: a prospective cohort study 2007–2012

Total

MSMs

Events

Person-yr

Rate (95% CI)

AHR (95% CI)

 

3625

440

6208.53

7.1 (6.4-7.7)

 

Age (years)

 18–25

1512

196

2280.34

8.6 (7.4–9.8)

1.00

 26–40

1746

206

3188.88

6.5 (5.6–7.3)

0.71 (0.57–0.89)†

 41–

367

38

739.31

5.1 (3.5–6.8)

0.53 (0.35–0.79)

Education

 Primary school

127

13

185.77

7.0 (3.2–10.8)

1.00

 Secondary school

829

105

1456.53

7.2 (5.8–8.6)

0.90 (0.51–1.61)

 High school

1317

181

2304.21

7.9 (6.7–9.0)

0.97 (0.55–1.71)

 Post–high school

1149

118

1946.42

6.1 (5.0–7.2)

0.74 (0.42–1.33)

 Missing data

203

23

315.59

7.3 (4.3–10.3)

0.95 (0.45–2.01)

Marital status

 Never married

2405

291

3924.01

7.4 (6.6–8.3)

1.00

 Married (with woman)

827

100

1612.16

6.2 (5.0–7.4)

0.99 (0.76–1.30)

 Cohabit(with man)

66

4

99.10

4.0 (0.1–8.0)

0.52 (0.19–1.40)

 Divorce&widower

182

27

361.68

7.5 (4.6–10.3)

1.22 (0.80–1.87)

 Missing data

145

18

211.58

8.5 (4.6–12.4)

1.68 (0.91–3.10)

HIV status of partners

 Positive

41

6

60.63

9.9 (2.0–17.8)

1.00

 Negative

335

48

633.79

7.6 (5.4–9.7)

0.89 (0.38–2.09)

 Unknown

2337

285

3902.60

7.3 (6.5–8.2)

0.84 (0.37–1.90)

 No partner

558

62

936.56

6.6 (5.0–8.3)

0.71 (0.30–1.66)

 Missing data

354

39

674.95

5.8 (4.0–7.6)

0.62 (0.25–1.51)

Sex Role

 Insertive only

173

11

282.40

3.9 (1.6–6.2)

1.00

 Receptive only

102

16

188.39

8.5 (4.3–12.7)

2.00 (0.92–4.36)

 Both

917

124

1320.44

9.4 (7.7–11.0)

2.27 (1.22–4.23)

 Missing data

2433

289

4417.30

6.5 (5.8–7.3)

1.88 (0.94–3.75)

Type of partnership

 Casual only

685

69

999.00

6.9 (5.3–8.5)

1.00

 Regular only

500

52

691.58

7.5 ((5.5–9.6)

0.98 (0.61–1.58)

 Both

738

99

1051.75

9.4 (7.6–11.3)

1.23 (0.79–1.91)

 Missing data

1702

220

3466.20

6.3 (5.5–7.2)

1.00 (0.58–1.75)

Group sex

 No

1747

194

2487.01

7.8 (6.7–8.9)

1.00

 Yes

366

50

547.87

9.1 (6.6–11.7)

1.09 (0.79–1.50)

 Missing data

1512

196

3173.65

6.2 (5.3–7.0)

0.52 (0.25–1.10)

Knowledge

 Know well

326

34

503.59

6.8 (4.5–9.0)

1.00

 A little

1675

197

2383.34

8.3 (7.1–9.4)

1.19 (0.82–1.72)

 Unknown

175

17

269.12

6.3 (3.3–9.3)

0.93 (0.51–1.69)

 Missing data

1449

192

3052.48

6.3 (5.4–7.2)

1.66 (0.69–4.00)

Syphilis

 No

3144

342

5372.28

6.4 (5.7–7.0)

1.00

 Yes

481

98

836.24

11.7 (9.4–14.0)

1.86 (1.48–2.34)

  1. indicates significant at p<0.05.
  2. Rate: HIV incident rate.