Table 5

Comparisons* between self-report HCV status groups and weighted and unweighted BBV-TRAQ total and injecting subscales scores among sub-samples of IDU

Sub-sample

Weight

BBV-TRAQ Score

F

p-value

mean difference (HCV positive & negative)

95% CI of the difference

Initiated injecting ≤ 3 years

None

Injecting subscale

3.93

.033

10.76

0.63 – 20.88

Total

2.65

.076

14.5

-1.05 – 30.05

Log 1

Injecting subscale

4.48

.016

46.35

6.66 – 86.04

Total

4.19

.018

54.35

7.12 – 101.58

Log 2

Injecting subscale

5.49

.005

120.02

28.99 – 211.04

Total

5.41

.006

130.32

31.25 – 229.39

Log 5

Injecting subscale

7.11

.001

3,696

1,278 – 6,113

Total

7.19

.001

3,752

1,298 – 6,205

Aged ≤ 25 years

None

Injecting subscale

12.50

<.001

12.97

6.69 – 19.24

Total

8.97

<.001

17.15

7.36 – 26.93

Log 1

Injecting subscale

13.66

<.001

53.88

28.95 – 78.82

Total

12.08

<.001

61.28

31.15 – 91.41

Log 2

Injecting subscale

14.46

<.001

134.11

73.86 – 194.36

Total

13.70

<.001

143.11

77.05 – 209.16

Log 5

Injecting subscale

14.16

<.001

3,915

2,132 – 5,698

Total

13.69

<.001

3,939

2,114 – 5,764

* Comparisons were made between all HCV groups (i.e., inclusive of 'never tested/not sure' group). To simplify tables only results relevant to the focus of this paper have been presented (i.e., 'HCV positive' and 'HCV negative'). No differences were detected between the 'never tested/not sure' and other groups.

Stoové et al. Harm Reduction Journal 2008 5:12   doi:10.1186/1477-7517-5-12