Table 3.

Multivariate Cox Proportional Hazards Model Results^a

Cohort and Variable	Adjusted HR (95% CI)	Standard Error	P-value
EOT cohort
Age	0.96 (.93–.99)	0.02	.02
Sex	0.82 (.43–1.56)	0.27	.55
Recent IDUb	2.91 (1.47–5.76)	1.01	.002
Unstable housingc	1.81 (.97–3.39)	0.58	.06
SVR≥12 cohort
Age	0.96 (.93–1.00)	0.02	.04
Sex	0.77 (.36–1.65)	0.30	.50
Recent IDUb	2.84 (1.32–6.13)	1.11	.008
Unstable housingc	1.84 (.90–3.79)	0.68	.10

Abbreviations: CI, confidence interval; EOT, end of treatment virologic response; HR, hazard ratio; IDU, injection drug use; SVR≥12, sustained virologic response at ≥12 weeks.

^aMultivariate Cox proportional hazards models were fit to interval-censored data analysis.

^bRecent IDU defined as IDU within 6 months of the baseline interview.

^cUnstable housing was defined as living in a halfway house or penitentiary, homeless, or with other living arrangements.