School of Medicine Publications

Document Type

Article

Publication Date

3-27-2026

Abstract

Background: Depression commonly coexists with chronic medical illness and is associated with impaired self-management, poor adherence, increased healthcare utilization, and higher mortality.

Objective: To synthesize evidence published between 2000 and late 2025 on the effectiveness of the Collaborative Care Model (CoCM) for depression in adults with chronic medical illness, with particular attention to contemporary U.S. implementation, policy, and equity considerations.

Methods: A narrative review of randomized controlled trials, pragmatic and implementation studies, systematic reviews, and policy analyses was conducted using PubMed, PsycINFO, and Scopus. Evidence addressing collaborative care for depression in adults with chronic medical illness was identified and synthesized thematically in accordance with best practices for narrative reviews.

Results: Landmark trials and meta-analyses demonstrate that collaborative care consistently improves depression outcomes across chronic disease populations. More recent studies indicate that CoCM remains effective in real-world settings using digital registries, telepsychiatry, and population health workflows, although implementation remains uneven due to workforce and access constraints.

Conclusions: Collaborative care represents a durable, evidence-based approach for integrating depression management into chronic illness care. Sustaining effectiveness as systems scale will require preserving core model components while addressing persistent workforce, digital, and equity barriers.

Comments

© The Author(s) 2026

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

Creative Commons License

Creative Commons Attribution-NonCommercial 4.0 International License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License

Publication Title

Journal of Primary Care & Community Health

DOI

10.1177/21501319261434616

Academic Level

faculty

Mentor/PI Department

Psychiatry

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