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Table 1 Descriptive statistics for PWID and HROU in Brussels, 2019

From: Prevalence of HCV among people who inject drugs in Brussels—a respondent-driven sampling survey

 

PWID and HROU (a)

PWID non-HROU (b)

Non-PWID HROU(c)

Total PWID (a)+(b)

Total HROU (a)+(c)

Age (mean ± sd, median, range)

  

40.5 ± 9.5, 40, 20–65

37.0 ± 8.6, 34, 23–52

41.7 ± 9.2, 45, 19–65

40.1 ± 9.4, 40, 20–65

40.9 ± 9.4, 42, 19–65

   

N

%

N

%

N

%

N

%

N

%

Sex

Male

 

139

90.9

13

86.7

80

94.1

152

90.5

219

92.0

Female

 

14

9.2

2

13.3

5

5.9

16

9.5

19

8.0

Place of residence

In Brussels

 

145

94.8

11

73.3

82

96.5

156

92.9

227

95.4

Not in Brussels

 

8

5.2

4

26.7

3

3.5

12

7.1

11

4.6

Use of not-prescribed opiates at least once a week for 6 months in the last 12 months

Yes

 

153

100.0

0

0.0

85

100.0

153

91.1

238

100.0

No

 

0

0.0

15

100.0

0

0.0

15

8.9

0

0.0

Injected any drug in the last 12 months

Yes

 

153

100.0

15

100.0

0

0.0

168

100.0

153

64.3

No

 

0

0.0

0

0.0

85

100.0

0

0.0

85

35.7

Injected heroin in the last 12 months

Yes

 

120

78.4

7

46.7

0

0.0

127

75.6

120

50.4

No

 

33

21.6

8

53.3

85

100.0

41

24.4

118

49.6

Injected cocaine in the last 12 months

Yes

 

125

81.7

13

86.7

0

0.0

138

82.1

125

52.5

No

 

28

18.3

2

13.3

85

100.0

30

17.9

113

47.5

Injected other opiates in the last 12 months

Yes

 

54

35.3

2

13.3

0

0.0

56

33.3

54

22.7

No

 

99

64.7

13

86.7

85

100.0

112

66.7

184

77.3

Injected amphetamines in the last 12 months

Yes

 

21

13.7

6

40.0

0

0.0

27

16.1

21

8.8

No

 

132

86.3

9

60.0

85

100.0

141

83.9

217

91.2

Injected NPS in the last 12 months

Yes

 

9

5.9

0

0.0

0

0.0

9

5.4

9

3.8

No

 

144

94.1

15

100.0

85

100.0

159

94.6

229

96.2

Injected other drugs in the last 12 months

Yes

 

6

3.9

1

6.7

0

0.0

7

4.2

6

2.5

No

 

147

96.1

14

93.3

85

100.0

161

95.8

232

97.5

Ever tested on HCV

Yes

 

98

64.1

7

46.7

47

55.3

105

62.5

145

60.9

 

Infected

51

52.0

4

57.1

8

17.0

55

52.4

59

40.7

Not infected

43

43.9

2

28.6

37

78.7

45

42.9

80

55.2

Do not know

4

4.1

1

14.3

2

4.3

5

4.8

6

4.1

No

 

51

33.3

8

53.3

28

32.9

59

35.1

79

33.2

Don't know

 

4

4.1

0

0.0

10

11.8

4

2.4

14

5.9

Ever in treatment for HCV (only for those who were tested and infected)

Yes

 

20

39.2

1

25.0

3

37.5

21

38.2

23

39.0

No

 

31

60.8

3

75.0

5

62.5

34

61.8

36

61.0

Ever in substitution treatment

Yes

 

120

78.4

9

60.0

60

70.6

129

76.8

180

75.6

 

Now

87

72.5

5

55.6

43

71.7

92

71.3

130

72.2

Before

33

27.5

4

44.4

17

28.3

37

28.7

50

27.8

No

 

33

21.6

6

40.0

24

28.2

39

23.2

57

24.0

Do not know

 

0

0.0

0

0.0

1

1.2

0

0.0

1

0.4

Ever in other drug-related treatments

Yes

 

82

53.6

8

53.3

36

42.4

90

53.6

118

49.6

 

Now

17

20.7

0

0.0

5

13.9

17

19.1

22

18.8

Before

64

78.0

8

100.0

31

86.1

72

80.9

95

81.2

No

 

71

46.4

7

46.7

49

57.6

78

46.4

120

50.4

Referral

Stranger

 

14

9.2

3

20.0

11

12.9

17

10.1

25

10.5

Acquaintance but not close

 

54

35.3

5

33.3

33

38.8

59

35.1

87

36.6

Friend

 

63

41.2

6

40.0

18

21.2

69

41.1

81

34.0

Partner

 

6

3.9

0

0.0

2

2.4

6

3.6

8

3.4

Family

 

0

0.0

0

0.0

3

3.5

0

0.0

3

1.3

Dealer

 

1

0.7

0

0.0

0

0.0

1

0.6

1

0.4

Seeds

 

15

9.8

1

6.7

8

9.4

16

9.5

23

9.7

Risk behavior (past 30 days)

Split drugs with someone else

 

85

55.6

7

46.7

0

0.0

92

54.8

85

55.6

Used a syringe that had been used before

 

40

26.1

5

33.3

0

0.0

45

26.8

40

26.1

Injected drugs that were mixed, measured or divided up with a used syringe

 

72

47.1

6

40.0

0

0.0

78

46.4

72

47.1

Draw a shot from someone else’s cooker

 

72

22.9

7

46.7

0

0.0

79

47.0

72

47.1

Draw a shot from someone else’s water

 

60

39.2

6

40.0

0

0.0

66

39.3

60

39.2

Used rinse water from somebody else

 

39

25.5

4

26.7

0

0.0

43

25.6

39

25.5

HCV antibody test

Positive

 

66

43.1

3

20.0

14

16.5

69

41.1

80

33.6

Negative

 

87

56.9

12

80.0

71

83.5

99

58.9

158

66.4

Total

  

153

100

15

100

85

100

168

100

238

100