Impact of a Depression Disease Management Program on Productivity
Kevin Kerber, University of Michigan
Julie Kuebler, University of Michigan
Heather Walters, University of Michigan
*Kara Zivin, University of Michigan
Keywords: depression, productivity, mixed effects models
We used random effects models to evaluate how the University of Michigan’s Depression Outreach and Collaborative Care (M-DOCC) program affected depression and productivity over time. The Patient Health Questionnaire (PHQ-8) measured depression, and patients were asked about days performing less than usual at work in the last month. Among 1,853 enrolled from February 2003 to October 2006, 76% were female, mean age was 41.3 (13.7) and mean baseline PHQ-8 score was 13.0 (5.8). The mean last PHQ-8 score was 9.0 (6.4). Days with functional impairment in the last month at baseline was 14.9 (10.8) days and at last was 11.2 (10.9) days. Only a higher PHQ score (ß=0.72, p<0.01) was a significant predictor of lower impairment in adjusted analyses. Patients enrolled in the M-DOCC program had reductions in impairment and depression. Such programs may also reduce presenteeism and absenteeism.