Effectiveness and implementation outcomes for peer-delivered mental health interventions in low- and middle-income countries: a mixed-methods systematic review.
Soc Psychiatry Psychiatr Epidemiol 2022;
57:1731-1747. [PMID:
35484436 DOI:
10.1007/s00127-022-02294-y]
[Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 04/12/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE
This review aimed to evaluate interventions led by peer counselors (PCs) for adults with common mental disorders in low- and middle-income countries (LMICs) along indices of overall effectiveness and key implementation outcomes (acceptability, feasibility, cost, fidelity, sustainability).
METHODS
This review followed a mixed-methods systematic review design. MEDLINE/PubMed, Embase, PsycINFO, and Global Health databases were searched for PC-led interventions for adults in LMICs targeting depressive and/or anxiety disorders or PTSD. Quantitative data was narratively synthesized, and qualitative data was thematically synthesized separately. The results from the qualitative and quantitative syntheses were then combined in a cross-study synthesis.
RESULTS
Twenty-four papers describing thirteen PC-led interventions were included for review. Narrative synthesis results indicated mixed effectiveness of PC-led interventions in reducing depressive, anxiety, PTSD symptoms and high PC competency. Thematic synthesis revealed five descriptive themes: (1) Preferred PC characteristics; (2) Incentives and motivation for PCs; (3) Barriers to PC-led intervention implementation; (4) Helpful supervision/training practices; and (5) Overall high acceptability of PC-led interventions. Cross-study synthesis revealed high acceptability, feasibility, and fidelity, but cost and sustainability outcomes were underreported in included papers.
CONCLUSION
PC-led interventions seem to show initial promise in terms of effectiveness, acceptability, feasibility, cost, fidelity, and sustainability. Future research should focus on standardizing measurements of implementation outcomes to facilitate cross-study analysis. Additional empirical attention should be paid to underrepresented implementation outcomes (e.g., cost, sustainability). Finally, researchers should adopt a participatory approach that elevates the perspectives of PCs throughout all stages of the implementation process.
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