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In this study, analyzed systematic reviews to summarize the current evidence for the clinical effectiveness and cost-effectiveness of educational interventions in patients with diabetes mellitus (DM). We searched electronic databases including Ovid-Medline, the Cochrane Library, and KoreaMed for relevant secondary studies published through May 2013. Two evaluators independently reviewed and selected systematic reviews, meta-analyses, or health technology assessment reports on the basis of certain predetermined selection criteria. Of the 1,350 screened articles, 13 systematic reviews (11 for clinical effectiveness and 2 for cost-effectiveness) were selected for this study. Educational interventions in patients with type-2 diabetes led to improvements in glycemic control, self-care knowledge and skills, and socio-psychological outcomes, but there was insufficient evidence for clinical effectiveness in patients with type-1 diabetes and for the cost-effectiveness of educational interventions for diabetes. To determine the economic impact of these interventions more conclusively, we need to conduct a rigorous economic evaluation in Korea because the current evidence is inconsistent due to the use of different settings and research methods.
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