Long-term effects of a collaborative care intervention on process of care in family practices in Germany: a 24-month follow-up study of a cluster randomized controlled trial

Gen Hosp Psychiatry. 2014 Nov-Dec;36(6):570-4. doi: 10.1016/j.genhosppsych.2014.07.006. Epub 2014 Jul 22.

Abstract

Objective: The aims of this study were (1) to assess the long-term effects of a collaborative care intervention for patients with depression on process of care outcomes, and (2) to describe whether case management was continued after the end of the original one-year intervention.

Methods: This 24-month follow-up of a randomized controlled trial took place 12 months after the end of the 1-year intervention. Data collection occurred by means of self-rating questionnaires and from medical records. We calculated linear mixed and logistic generalized estimating equation models.

Results: Of the 626 patients included at baseline, 439 (70.1%) participated in this follow-up. Intervention recipients gave higher ratings than control recipients in terms of mean overall Patient Assessment of Chronic Illness Care (PACIC) scores (3.12 vs. 2.86; P = .019), but no difference was found in medication adherence (mean Morisky score 2.59 vs. 2.65, P = .56), prescribed antidepressant medications (60.2% vs. 55.1%; P = .25), visits to the family physician (15.96 vs. 14.46, P = .58) or mental health specialist (3.01 vs. 2.94, P = .94) over the 12 month follow-up period. Case management was continued for 47 (22.5%) selected intervention patients after the original intervention had ended.

Conclusion: At 24 months, intervention and control recipients had different PACIC ratings, but other process of care outcomes did not differ.

Practice implications: The main effects of the intervention are apparent at 12 months.

Keywords: Case management; Healthcare assistants; Major depression; Primary healthcare.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Antidepressive Agents / therapeutic use*
  • Case Management*
  • Cooperative Behavior*
  • Depressive Disorder, Major / drug therapy*
  • Family Practice / methods*
  • Family Practice / statistics & numerical data
  • Female
  • Follow-Up Studies
  • Germany
  • Humans
  • Linear Models
  • Logistic Models
  • Longitudinal Studies
  • Male
  • Medication Adherence
  • Mental Health Services / statistics & numerical data*
  • Middle Aged
  • Outcome and Process Assessment, Health Care
  • Primary Health Care / statistics & numerical data*
  • Psychiatry / methods*
  • Psychiatry / statistics & numerical data

Substances

  • Antidepressive Agents

Associated data

  • ISRCTN/ISRCTN66386086