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Table 1 Sources for variables used in mathematical modeling

From: A cost-benefit/cost-effectiveness analysis of proposed supervised injection facilities in Montreal, Canada

Variable Value Source
Proportion of IDUs HIV- (I) 81.20% Généreux et al. [19]; Broadhead, Kerr, Grund & Altice [20]
Rate of Needle sharing (s) 35% Bruneau et al. [9]; De et al. [8]; Généreux et al. [19]
Number of needles in circulation (N) 800000 Morissette et al. [7]
Percentage of needles not cleaned (d) 17.00% Jacobs et al. [18]; Kaplan and O'Keefe [21]
Probability of HIV infections from a single injection (t) 0.67% Kaplan and O'Keefe [21]
Number of sharing partners (m) 1.38 Jacobs et al. [18]
Proportion of IDUs HIV+ (q) 18.80% Broadhead et al. [20]; Généreux et al. [19]
Proportion IDUs HCV- (I) 30.00% De et al. [8]; Broadhead et al. [20]; Généreux et al. [19]
Proportion of IDUs HCV+ (q) 70.00% De et al. [8]; Broadhead et al. [20]; Généreux et al. [19]
Probability of HCV infection from single injection (t) 3% Gore & Bird [22]