Figure 2E.

Alcohol use measured as continuous, count, or ordinal variable and association with medication nonadherence. ^aData only available by subgroup and not for entire study sample; ^bfrequency of drinking scale scores: 1 = 0 times in past 3 months, 2 = ≤1/month, 3 = ≥1/month but <1/week, 4 = ≥1/week but <1/day, 5 = every day. CI = confidence interval; ex-IDUs = patients with a history of injection drug use but no use during the study period. *p < .05.