Effect of peer support intervention on diabetes distress in people with type 2 diabetes: A systematic review and meta-analysis

Aims To assess the effect of peer support intervention on diabetes distress in people with type 2 diabetes. Background Diabetes distress may be decreased by peer support intervention, but findings about the effect of peer support on diabetes distress have been mixed. Design A systematic review and meta-analysis of randomized controlled studies. Data sources PubMed, Embase, CENTRAL, PsycINFO, Web of Science, and CINAHL databases were searched for randomized controlled trials from inception to 30 June 2018. Review methods Investigators assessed eligibility, extracted data, and assessed methodological quality. Standardized mean difference and 95% confidence intervals were calculated for pooled effect size. Results A total of 13 studies included in systematic review and 10 in meta-analysis. In the random-effects model, the pooled effect size showed current peer support intervention did not significantly reduce diabetes distress in type 2 diabetes population compared with usual care. Conclusion High quality and well-designed studies targeting at reducing diabetes distress are needed to further test the effect of peer support intervention on diabetes distress.