TY - JOUR KW - Adult KW - Aged KW - Cluster Analysis KW - Depression/complications/diagnosis/therapy KW - Depressive Disorder, Major/complications KW - Female KW - Humans KW - Male KW - Middle Aged KW - Patient Care Team KW - Primary Health Care/methods KW - Quality of Life KW - Surveys and Questionnaires KW - Treatment Outcome AU - J. J. Petersen AU - J. Hartig AU - M. A. Paulitsch AU - M. Pagitz AU - K. Mergenthal AU - S. Rauck AU - A. Reif AU - F. M. Gerlach AU - J. Gensichen A1 - AB - PURPOSE: Collaborative care is effective in improving symptoms of patients with depression. The aims of this study were to characterize symptom trajectories in patients with major depression during one year of collaborative care and to explore associations between baseline characteristics and symptom trajectories. METHODS: We conducted a cluster-randomized controlled trial in primary care. The collaborative care intervention comprised case management and behavioral activation. We used the Patient Health Questionnaire-9 (PHQ-9) to assess symptom severity as the primary outcome. Statistical analyses comprised latent growth mixture modeling and a hierarchical binary logistic regression model. RESULTS: We included 74 practices and 626 patients (310 intervention and 316 control recipients) at baseline. Based on a minimum of 12 measurement points for each intervention recipient, we identified two latent trajectories, which we labeled 'fast improvers' (60.5%) and 'slow improvers' (39.5%). At all measurements after baseline, 'fast improvers' presented higher PHQ mean values than 'slow improvers'. At baseline, 'fast improvers' presented fewer physical conditions, higher health-related quality of life, and had made fewer suicide attempts in their history. CONCLUSIONS: A notable proportion of 39.5% of patients improved only 'slowly' and probably needed more intense treatment. The third follow-up in month two could well be a sensible time to adjust treatment to support 'slow improvers'. AD - Institute of General Practice, Goethe-University Frankfurt am Main, Frankfurt am Main, Germany.; Department of Educational Quality and Evaluation, German Institute for International Educational Research, Frankfurt am Main, Germany.; Institute of General Practice, Goethe-University Frankfurt am Main, Frankfurt am Main, Germany.; Institute of General Practice, Goethe-University Frankfurt am Main, Frankfurt am Main, Germany.; Institute of General Practice, Goethe-University Frankfurt am Main, Frankfurt am Main, Germany.; Institute of General Practice, Goethe-University Frankfurt am Main, Frankfurt am Main, Germany.; Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Frankfurt, Germany.; Institute of General Practice, Goethe-University Frankfurt am Main, Frankfurt am Main, Germany.; Institute of General Practice, Goethe-University Frankfurt am Main, Frankfurt am Main, Germany.; Institute of General Practice and Family Medicine, Ludwig-Maximilians University Clinic, Munich, Germany. BT - PloS one C5 - General Literature CP - 9 CY - United States DO - 10.1371/journal.pone.0202245 IS - 9 JF - PloS one M1 - Journal Article N2 - PURPOSE: Collaborative care is effective in improving symptoms of patients with depression. The aims of this study were to characterize symptom trajectories in patients with major depression during one year of collaborative care and to explore associations between baseline characteristics and symptom trajectories. METHODS: We conducted a cluster-randomized controlled trial in primary care. The collaborative care intervention comprised case management and behavioral activation. We used the Patient Health Questionnaire-9 (PHQ-9) to assess symptom severity as the primary outcome. Statistical analyses comprised latent growth mixture modeling and a hierarchical binary logistic regression model. RESULTS: We included 74 practices and 626 patients (310 intervention and 316 control recipients) at baseline. Based on a minimum of 12 measurement points for each intervention recipient, we identified two latent trajectories, which we labeled 'fast improvers' (60.5%) and 'slow improvers' (39.5%). At all measurements after baseline, 'fast improvers' presented higher PHQ mean values than 'slow improvers'. At baseline, 'fast improvers' presented fewer physical conditions, higher health-related quality of life, and had made fewer suicide attempts in their history. CONCLUSIONS: A notable proportion of 39.5% of patients improved only 'slowly' and probably needed more intense treatment. The third follow-up in month two could well be a sensible time to adjust treatment to support 'slow improvers'. PP - United States PY - 2018 SN - 1932-6203; 1932-6203 T1 - Classes of depression symptom trajectories in patients with major depression receiving a collaborative care intervention T2 - PloS one TI - Classes of depression symptom trajectories in patients with major depression receiving a collaborative care intervention U1 - General Literature U2 - 30192786 U3 - 10.1371/journal.pone.0202245 VL - 13 VO - 1932-6203; 1932-6203 Y1 - 2018 Y2 - Sep 7 ER -