Skip to main content

Table 3 Univariate analyses of demographic and risk behavior for incident HCV infection in the HITS cohort (n = 488)

From: Incidence of primary hepatitis C infection and risk factors for transmission in an Australian prisoner cohort

Variable

Incident cases (n = 94)

Uninfected subjects (n = 394)

p

95% CI

   Mean age; years (SD)

28 (±7)

27 (±7)

0.08

 

   Male gender; No. (%)

51 (54)

267 (68)

0.01

0.4 - 0.9

   ATSI; No. (%)

26 (28)

92 (23)

0.38

0.8 - 2.1

   Less than 10 years education; No. (%)

71 (76)

302 (77)

0.82

0.6 - 1.6

   Duration of imprisonment; weeks (SD)

28 (±39)

52 (±95)

<0.001

 

   Previously imprisoned; No. (%)

79 (84)

276 (70)

<0.01

1.2 - 4.1

   Continuous imprisonment; No. (%)

24 (26)

216 (55)

<0.001

0.2 - 0.5

Ever:

    

   Mean duration of IDU; years (SD) (mean, years)

9.5 (±6.8)

8.1 (±6.0)

0.04

 

   Tattoo; No. (%)

76 (81)

278 (71)

0.03

1.1 - 3.3

   Body-piercing; No. (%)

68 (72)

307 (78)

0.25

0.4 - 1.2

   Fight with blood; No. (%)

37 (39)

167 (42)

0.79

0.6 - 1.5

   Stabbed; No. (%)

24 (26)

109 (28)

0.68

0.5 - 1.5

   Shared a razor; No. (%)

12 (13)

66 (17)

0.39

0.4 - 1.5

   Haircut with laceration; No. (%)

21 (22)

85 (22)

0.87

0.6 - 1.8

   Blood contact during sport; No. (%)

12 (13)

80 (20)

0.11

0.3 - 1.1

   Needle-stick injury; No. (%)

21 (22)

68 (17)

0.28

0.8 - 2.4

   IDU in prison; No. (%)

49 (52)

147 (37)

0.01

1.1 - 2.8

   Injected by someone else; No. (%)

58 (62)

284 (72)

0.04

0.4 - 1.0

   Injected heroin; No. (%)

69 (73)

249 (63)

0.06

1.0 - 2.7

   Injected methamphetamine; No. (%)

82 (87)

341 (87)

0.86

0.5 - 2.1

   Injected methadone/buprenorphine; No. (%)

40 (43)

125 (32)

0.05

1.0 - 2.5

   Daily IDU; No. (%)

82 (87)

296 (75)

0.01

1.2 - 4.3

   Shared IDU equipment; No. (%)

63 (67)

243 (62)

0.43

0.8 - 2.0

   Drug & Alcohol counseling; No. (%)

69 (73)

303 (77)

0.42

0.5 - 1.4

3 months prior to incarceration*

    

   IDU; No. (%)

58 (83)

115 (65)

<0.01

1.3 - 5.1

   Daily IDU; No. (%)

50 (71)

75 (43)

<0.001

1.9 - 6.1

   Shared IDU equipment; No. (%)

18 (26)

41 (23)

0.69

0.6 - 2.2

   Always bleach shared equipment, No. (%)

13 (19)

16 (9)

0.04

1.0 - 5.0

Since incarceration:

    

   IDU; No. (%)

31 (33)

102 (26)

0.17

0.9 - 2.3

   Daily IDU; No. (%)

3 (3)

15 (5)

0.56

0.2 - 2.4

   Shared IDU equipment; No. (%)

27 (29)

93 (24)

0.30

0.8 - 2.2

   Always bleach shared equipment, No. (%)

20 (21)

63 (16)

0.22

0.8 - 2.5

   Recent break from IDU >6 months; No. (%)

33 (35)

208 (53)

<0.01

0.3 - 0.7

   Currently on MMT; No. (%)

36 (38)

63 (16)

<0.001

2.0 - 5.3

  1. * Only inmates who were not continuously in prison were included in this analysis (n = 246)