HSR&D Citation Abstract
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Development of a model to predict psychotherapy response for depression among Veterans.
Ziobrowski HN, Cui R, Ross EL, Liu H, Puac-Polanco V, Turner B, Leung LB, Bossarte RM, Bryant C, Pigeon WR, Oslin DW, Post EP, Zaslavsky AM, Zubizarreta JR, Nierenberg AA, Luedtke A, Kennedy CJ, Kessler RC. Development of a model to predict psychotherapy response for depression among Veterans. Psychological medicine. 2022 Feb 11; 1-10.
Fewer than half of patients with major depressive disorder (MDD) respond to psychotherapy. Pre-emptively informing patients of their likelihood of responding could be useful as part of a patient-centered treatment decision-support plan.
This prospective observational study examined a national sample of 807 patients beginning psychotherapy for MDD at the Veterans Health Administration. Patients completed a self-report survey at baseline and 3-months follow-up (data collected 2018-2020). We developed a machine learning (ML) model to predict psychotherapy response at 3 months using baseline survey, administrative, and geospatial variables in a 70% training sample. Model performance was then evaluated in the 30% test sample.
32.0% of patients responded to treatment after 3 months. The best ML model had an AUC (SE) of 0.652 (0.038) in the test sample. Among the one-third of patients ranked by the model as most likely to respond, 50.0% in the test sample responded to psychotherapy. In comparison, among the remaining two-thirds of patients, < 25% responded to psychotherapy. The model selected 43 predictors, of which nearly all were self-report variables.
Patients with MDD could pre-emptively be informed of their likelihood of responding to psychotherapy using a prediction tool based on self-report data. This tool could meaningfully help patients and providers in shared decision-making, although parallel information about the likelihood of responding to alternative treatments would be needed to inform decision-making across multiple treatments.