Response to depression treatment in the Aging Brain Care Medical Home model

Abstract

Michael A LaMantia,1–4 Anthony J Perkins,5,6 Sujuan Gao,2,7 Mary G Austrom,8,9 Cathy A Alder,10 Dustin D French,11,12 Debra K Litzelman,2,3,13 Ann H Cottingham,3 Malaz A Boustani1–3,5 1Indiana University Center for Aging Research, 2Regenstrief Institute, Inc., 3Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, 4Department of Medicine, University of Vermont College of Medicine, Burlington, VT, 5Indiana University Center for Health Innovation and Implementation Science, 6Indiana Clinical and Translational Sciences Institute, 7Department of Biostatistics, Indiana University School of Medicine, 8Department of Psychiatry, Indiana University School of Medicine, 9Indiana University Alzheimer’s Disease Center, 10Eskenazi Health, Indianapolis, IN, 11Department of Ophthalmology, Feinberg School of Medicine, Northwestern University, 12Veterans Affairs Health Services Research and Development Service, Chicago, IL, 13Indiana University Center for Health Services and Outcomes Research, Indianapolis, IN, USA Objective: To evaluate the effect of the Aging Brain Care (ABC) Medical Home program’s depression module on patients’ depression severity measurement over time.Design: Retrospective chart review.Setting: Public hospital system.Participants: Patients enrolled in the ABC Medical Home program between October 1, 2012 and March 31, 2014.Methods: The response of 773 enrolled patients who had multiple patient health questionnaire-9 (PHQ-9) scores recorded in the ABC Medical Home program’s depression care protocol was evaluated. Repeatedly measured PHQ-9 change scores were the dependent variables in the mixed effects models, and demographic and comorbid medical conditions were tested as potential independent variables while including random effects for time and intercept.Results: Among those patients with baseline PHQ-9 scores >10, there was a significant decrease in PHQ-9 scores over time (P<0.001); however, the effect differed by gender (P=0.015). On average, women’s scores (4.5 point drop at 1 month) improved faster than men’s scores (1 point drop at 1 month). Moreover, both men and women had a predicted drop of 7 points (>50% decline from baseline) on the PHQ-9 at 6 months. Conclusion: These analyses demonstrate evidence for the sustained effectiveness of the ABC Medical Home program at inducing depression remission outcomes while employing clinical staff who required less formal training than earlier clinical trials. Keywords: geriatrics, care coordination, Medicare

Keywords

• Depression
• care coordination
• Medicare