Table 1.

Univariate and multivariate GEE^a analyses of factors associated with being referred to Vancouver's supervised injection facility by local police officers

Characteristicf	ORb (95% CId)	p-valuec	AORb (95% CId)	p-value
Older Age
per year older	0.98 (0.96 – 1.00)	0.041	1.00 (0.98 – 1.02)	0.961
Gender
Female vs. Male	0.73 (0.52 – 1.01)	0.059
Aboriginal Ethnicity
Yes vs. No	1.51 (1.05 – 2.16)	0.027	1.41 (0.99 – 2.03)	0.065
Homelessness e
Yes vs. No	1.49 (1.08 – 2.06)	0.014	1.28 (0.92 – 1.78)	0.140
Sex Work e
Yes vs. No	2.03 (1.46 – 2.83)	<0.001	1.80 (1.28 – 2.53)	<0.001
Frequent Heroin Injection e
≥ daily vs. < daily	1.53 (1.14 – 2.06)	0.005	1.32 (0.98 – 1.79)	0.070
Frequent Cocaine Injection e
≥ daily vs. < daily	1.66 (1.24 – 2.24)	<0.001	1.54 (1.14 – 2.08)	0.005
Syringe Sharing e
Yes vs. No	0.99 (0.68 – 1.44)	0.971
Unsafe Syringe Disposal e
Yes vs. No	1.73 (1.20 – 2.50)	0.004	1.46 (1.00 – 2.11)	0.048

Note: ^aGEE = Generalized Estimating Equation; ^bOR = Odds Ratio, AOR = Adjusted Odds Ratio; ^cValues based on Wald χ² with 1 degree of freedom; ^dCI = Confidence Interval; ^eDenotes activities or situations referring to the previous 6 months; ^fFor full variable definitions see methods section.