Table 4. Association between living in an ADAP waiting list state and ART initiation and virologic suppression, U.S. NA-ACCORD, 2001–2009.

	Outcome: 6-month ART initiation		Outcome: 1-year virologic suppression
	HR	95% CI	HR	95% CI
Overall
Living in a waiting list state (vs. not living in a waiting list state)
Crude (N = 8,874)	1.55	1.38–1.73	1.39	1.24–1.57
Regression-adjusted (N = 8,874)	1.73	1.45–2.07	1.21	1.01–1.44
Propensity score-matched (N = 620) *	1.12	0.87–1.45	1.05	0.79–1.38
Injection drug users only (N = 1,824)
Living in a waiting list state (vs. not living in a waiting list state)
Crude	1.59	1.19–2.11	1.49	1.10–2.03
Regression-adjusted	2.15	1.31–3.55	1.30	0.80–2.09

ART = antiretroviral therapy, CI = confidence interval, HR = hazard ratio.

All analyses use Cox proportional hazards regression.

^*Hazard ratios obtained after 1∶3 matching (with replacement) 398 “exposed” to 222 “unexposed” individuals based on propensity of living in a waiting list state.

Both regression-adjusted and propensity-score matched analyses account for the following variables: age; sex; race/ethnicity; transmission risk; CD4+ count and viral load at eligibility; history of alcohol abuse, substance abuse, and mental disorders; year of eligibility; type of cohort; clinic-specific mechanisms to help obtain ART; state-level population density, % population of black race, % population below poverty line, median household income, and per capita Medicaid spending on HIV.