Table 2.

Differences in ever HIV primary care engagement among those who reported opioids as their primary problem drug vs. those who reported other primary problem drug and/or alcohol categories

	Opioids vs. no problem drug	Opioids vs. alcohol	Opioids vs. stimulants	Opioids vs. cannabis	Opioids vs. polysubstance with alcohol	Opioids vs. polysubstance no alcohol	Opioids vs. other
Engagement in HIV primary care	ARR = 0.84 (95% CI 0.73, 0.98)a	ARR = 0.96 (95% CI 0.84, 1.09)	ARR = 0.84 (95% CI 0.74, 0.95)a	ARR = 0.90 (95% CI 0.70, 1.15)	ARR = 0.86 (95% CI 0.72, 1.03)	ARR = 0.79 (95% CI 0.68, 0.93)a	ARR = 1.24 (95% CI 0.64, 2.40)

ARR, Adjusted Risk Ratio (controlled for age, sex, race, education, health insurance, income, any previous substance use treatment, length of time since HIV diagnosis, and study site); 95% CI 95% confidence interval; ^a Denotes statistical significance at α= 0.05