S2 Patient Characteristics as Moderators: Whether the effects of the intervention on patient outcomes and quality of care differ by depression severity, patient location (e.g., rural vs. urban), race/ethnicity (White, Black, Hispanic, Native American), availability of social support (caregiver), health status, or cognitive impairment. Separate models will examine each patient characteristic as a moderator using mixed-effects linear or logistic regression analyses. The independent variables will include intervention and the respective hypothesized mediating (from post baseline) or moderating (from baseline) effects (described below). Initially the main effects will be tested. Then subsequent models will examine the incremental contribution of the interaction of intervention with each of the hypothesized moderating effects.