Needle Sharing (n = 378) Injection equipment sharing (n = 378) Crack pipe sharing (n= 508)
  OR p-value 95%CI OR p-value 95%CI OR p-value 95%CI
Severe psychological distress (K10 score≥ 30 ) 1.8 0.04 1.0-3.2 1.0 0.94 0.6-1.6 1.1 0.78 0.7-1.6
Age (≥30 year old) 0.9 0.71 0.4-1.8 0.9 0.63 0.5-1.6 1.7 0.01 1.1-2.7
Gender (Male) 2.4 0.01 1.2-4.8 1.6 0.11 0.9-3.0 1.4 0.22 0.8-2.5
Born in Canada 0.5 0.31 0.1-1.9 1.0 0.99 0.3-3.8 0.9 0.86 0.4-2.0
Homelessness 0.9 0.81 0.5-1.7 1.0 0.97 0.6-1.7 1.4 0.10 0.9-2.1
Living with a partner 3.4 0.00 1.8-6.5 2.3 0.00 1.3-4.1 0.9 0.82 0.6-1.6
Completed high school 1.3 0.42 0.7-2.3 1.4 0.15 0.9-2.3 1.1 0.74 0.7-1.6
Unstable source of income 1.6 0.14 0.9-2.8 1.2 0.46 0.7-2.0 0.9 0.75 0.6-1.4
High SDS score (≥4) 1.8 0.06 1.0-3.30 1.4 0.20 0.9-2.2 1.7 0.01 1.1-2.4
Cocaine binge 1.5 0.24 0.8-2.8 1.4 0.27 0.8-2.3 1.6 0.03 1.1-2.6
Alcohol binge 1.0 0.91 0.6-1.8 1.0 0.95 0.6-1.6 1.9 0.01 1.3-2.8
Polyuse 1.2 0.69 0.5-2.5 2.9 0.01 1.3-6.3 1.8 0.01 1.2-2.8
Polyinjection 1.3 0.41 0.7-2.3 2.1 0.01 1.2-3.5 1.3 0.17 0.9-1.9
Opioid substitution treatment 1.6 0.29 0.7-3.9 1.5 0.26 0.2-3.3 0.7 0.34 0.4-1.5
Regular use of cannabis 0.9 0.67 0.5-1.6 1.1 0.72 0.7-1.8 0.6 0.08 0.4-0.9
Table 2: Bivariate logistic regression analyses of predictors for material sharing outcomes among 589 cocaine users recruited between October 2010 and April 2013, in Montreal, Quebec, Canada. OR: Odd Ratio; 95% CI: 95% Confidence Interval; P-value by Pearson chi-square test