Table 1 Baseline characteristics of street-involved youth in Vancouver, Canada, stratified by syringe sharing (n = 405)

 Age (median, IQR)

22.7 (20.9–24.4)

22.2 (20.4–23.7)

22.9 (21.1–24.5)

–

0.055^a

 Female gender

142 (35.1)

37 (38.9)

105 (33. 9)

1.25 (0.77, 2.00)

0.364

 Aboriginal Ancestry

91 (22.5)

12 (12.6)

79 (25.5)

0.43 (0.22, 0.83)

0.010

 Binge drug use^b

224 (55.3)

63 (66.3)

161 (51.9)

1.81 (1.12, 2.93)

0.015

 Daily heroin use^b

91 (22.5)

27 (28.4)

64 (20.6)

1.52 (0.90, 2.57)

0.116

 Daily cocaine use^b

9 (2.2)

2 (2.1)

7 (2.3)

0.93 (0.19, 4.54)

1.000^†

 Daily crytsal methamphetamine use^b

79 (19.5)

19 (20.0)

60 (19.4)

1.04 (0.59, 1.85)

0.890

 Residential eviction^b

67 (16.5)

21 (22.1)

46 (14.8)

1.62 (0.91, 2.90)

0.099

 Difficulty accessing syringes^b

101 (24.9)

28 (29.5)

73 (23.5)

1.37 (0.82, 2.30)

0.225

 Public injecting^b

274 (67.7)

77 (81.1)

197 (63.6)

2.55 (1.44, 4.53)

0.001

 Incarceration^b

93 (23.0)

20 (21.1)

73 (23.6)

0.87 (0.50, 1.51)

0.613

 Accessing drug treatment^{b, c}

171 (42.2)

50 (52.6)

121 (39.0)

1.75 (1.10, 2.78)

0.018