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Table 1 Descriptive characteristics of study participants (N = 611)

From: Prevalence and risk factors associated with HIV-1 infection among people who inject drugs in Dar es Salaam, Tanzania: a sign of successful intervention?

Characteristics

Number of participants (n)

Unweighted proportion (%)

Weighted proportion (%)

Sex

 Male

576

94.3

94.4

 Female

35

5.7

5.6

Median age (IQR)

34 (29–38)

  

Age (years)

 < 25

54

8.8

8.7

 25–34

264

43.7

43.0

 35–44

245

40.3

41.5

 ≥ 45

44

7.2

6.8

Completed educational level

 None

113

21.8

23.5

 Primary school

418

68.4

67.6

 Secondary school

60

9.8

8.9

Income per month (Tshs)

 < 50,000

116

19.0

20.3

 50,000–120,000

145

23.7

25.7

 120,000–200,000

95

15.6

17.6

 > 200,000

255

41.7

30.4

Occupation

 None

24

3.9

3.6

 Self-employment

450

73.6

74.7

 Employed

100

16.4

16.3

 Informal employment

37

6.1

5.4

Marital status

 Never married

323

52.9

52.7

 Married

115

18.6

17.1

 Separated/divorced/widowed

173

28.3

30.2