Needle Injection material excluding needle   N=378 N=378 Crack pipes     N=508   AOR 95% CI AOR 95% CI AOR 95% CI Severe psychological distress 2.1 1.1-3.8 1.1 0.6-1.8 0.8 0.5-1.2 Control variables             Age (≥30 yearold)         2.1 1.3-3.4 Homelessness         1.6 1.0-2.5 Living with a partner 3.8 2.0-7.3 2.3 1.3-4.1     High SDS score (≥4)         1.8 1.2-2.8 Alcohol binge         2.3 1.5-3.4 Polyuse         2.2 1.4-3.6 Polyinjection     2.1 1.2-3.5     Regular use of cannabis         0.6  0.4-0.9

Table 3: Multivariate logistic regression analyses of the association between material sharing outcomes and severe psychological distress, accounting for sociodemographic and behavioural co-variates, among 589 cocaine users recruited between October 2010 and April 2013, in Montreal, Quebec, Canada.

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