Effect of Community-based Intervention Using Depression Screening on Elderly Suicide Risk: A Meta-analysis of the Evidence from Japan
A systematic review was undertaken to quantify the effect of community-based depression screening (CDS) with follow-up on the completed suicide risk for residents aged 65 and over. Five quasi-experimental studies in Japanese regions with high suicide rates were included in the meta-analysis. Combined incidence rate ratios (95% confidence intervals) by the Mantel-Haenszel method and by the DerSimonian-Laird method in two homogenous studies implementing the follow-up conducted by psychiatrists were 0.30 (0.13-0.68) and 0.33 (0.14-0.80) in men, and 0.33 (0.19-0.58) and 0.33 (0.19-0.60) in women, respectively; and those in three homogenous studies implementing the follow-up conducted by general practitioners were 0.73 (0.45-1.18) and 0.74 (0.45-1.23) in men, and 0.36 (0.21-0.60) and 0.39 (0.22-0.66) in women, respectively. There are very few studies included, however, to demonstrate an association between CDS and the reduced risk, suggesting gender difference in the effectiveness.
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