Table 3.

Adjusted^* Hazard Ratios and 95% Confidence Intervals (95% CI) of Long-term Injection Cessation by Neighborhood Deprivation and Residential Relocation

	Adjusted Model I	Adjusted Model II	Adjusted Model III
	HR (95% CI)	HR (95% CI)	HR (95% CI)
Neighborhood deprivation
Q1: least deprived	1.00	1.00
Q2	0.90 (0.65, 1.26)	0.91 (0.65, 1.27)
Q3	0.71 (0.53, 0.95)	0.72 (0.53, 0.96)
Q4: most deprived	0.57 (0.43, 0.76)	0.58 (0.44, 0.77)
Residential relocation
No		1.00
Yes		1.55 (1.31, 1.82)
Residential relocation, by type of destination and origin neighborhood
No move, Q1–Q3†			1.00
No move, Q4			0.76 (0.63, 0.93)
Moved from Q1–Q3 to Q1–Q3			1.39 (1.02, 1.89)
Moved from Q4 to Q1–Q3			1.96 (1.50, 2.57)
Moved from Q1–Q3 to Q4			1.26 (0.89, 1.79)
Moved from Q4 to Q4			1.01 (0.77, 1.32)

^*All models included a random intercept and adjusted for homelessness at time of cessation, methadone maintenance, detoxification, sex with an IDU partner, incarceration, non-injection drug use, alcohol use, and number of prior moves from time preceding cessation, and all baseline characteristics in Table 1;

^†Q1–Q4: Quartiles of neighborhood deprivation, where Q4 is the most deprived