Fig 4.

Estimated class differences, relative to the Low Services Class, with respect to change in Substance Problem Scale (from baseline to 3 months), as estimated by three methods that adjust for potential confounding and two unadjusted methods.

* denotes p-values < 0.05, † denotes stepwise Bonferroni-corrected p < 0.05

Abbreviations: Low = Low Service Utilization class; Indiv = Individual-Focused Services class; Indiv & Fam = Individual- and Family-Focused Services class; Multiple = Multiple Services class