Table 2.

Cox Proportional Hazard analyses of factors associated with time to injection cessation among clients of Vancouver’s supervised injecting facility.

	Unadjusted		Adjusted
Characteristic	Hazard Ratio	(95% CI)a	Hazard Ratio	(95% CI)
Methadone Treatmente
Yes vs. No	1.56	(1.03 – 2.36)	1.57	(1.02 – 2.40)
Other Addiction Treatmente
Yes vs. No	1.79	(1.04 – 3.07)	1.85	(1.06 – 3.24)
Older Age
per 10 years older	1.07	(0.85 – 1.35)	0.99	(0.95 – 1.02)
Years Injecting
per additional year	1.01	(0.99 – 1.03)	1.01	(0.98 – 1.04)
Gender
Female vs. Male	0.67	(0.41 – 1.09)	0.79	(0.44 – 1.42)
Aboriginal Ancestryb
Yes vs. No	0.83	(0.48 – 1.42)	0.94	(0.54 – 1.64)
HomelessC
Yes vs. No	0.87	(0.51 – 1.49)	0.96	(0.55 – 1.68)
Sex WorkC
Yes vs. No	0.65	(0.36 – 1.19)	0.83	(0.40 – 1.73)
Daily Cocaine Injectiond
Yes vs. No	0.74	(0.48 – 1.16)	0.78	(0.50 – 1.22)
Daily Heroin Injectiond
Yes vs. No	0.62	(0.41 – 0.95)	0.69	(0.44 – 1.06)
Daily Crack Cocaine Smokingc
Yes vs. No	0.75	(0.50 – 1.14)	0.90	(0.59 – 1.38)

Note:

^aCI = Confidence Interval;

^bAboriginal ancestry was defined as a person who self-reported as being Aboriginal, Métis, Inuit or First Nations;

^CDenotes activities or situations referring to previous 6 months;

^dMeasured at baseline, referring to 6 months prior to baseline;

^eRepresents current engagement.