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Determinants Of Medical Costs Following A Diagnosis Of Depression, Regina H. Powers, Thomas J. Kniesner, Thomas W. Croghan

Center for Policy Research

Objective: Assess the determinants of medical costs for depressed individuals.

Method: Using medical insurance claims for a population of depressed individuals with employer provided insurance, we estimated multivariate models of the costs for general medical care, exclusive of costs for mental health services, following diagnosis. Explanatory variables included provider choice (psychiatrist or non-physician mental health specialist), treatment choice (medication, psychotherapy, or combination treatment); treatment adequacy as defined by APA guidelines; characteristics of depression symptoms and severity; and other demographic characteristics.

Results: On average, there were increases in the costs for general medical services in the year following diagnosis of a …