Fig. 4.

Responses to “Physical and emotional health” quality of life topics among participants with different overall amounts of urinalysis-verified drug abstinence: Low, Intermediate (Mid), or High. All data are presented as the least-squares means (± 1 standard error) from the multivariate model constructed for each endpoint. Within each panel, letters indicate statistically significant (p < .05) post-hoc pairwise differences: a, different from Low for opiate abstinence; b, different from Low for cocaine abstinence; c, different from Mid for cocaine abstinence.