Abstract
BackgroundTo respond to the rapid surge in the incidence of suicide in Japan, which appears to be an ongoing trend, the Japanese Multimodal Intervention Trials for Suicide Prevention (J-MISP) have launched a multimodal community-based suicide prevention program, NOCOMIT-J. The primary aim of this study is to examine whether NOCOMIT-J is effective in reducing suicidal behavior in the community.Methods/DesignThis study is a community intervention trial involving seven intervention regions with accompanying control regions, all with populations of statistically sufficient size. The program focuses on building social support networks in the public health system for suicide prevention and mental health promotion, intending to reinforce human relationships in the community. The intervention program components includes a primary prevention measures of awareness campaign for the public and key personnel, secondary prevention measures for screening of, and assisting, high-risk individuals, after-care for individuals bereaved by suicide, and other measures. The intervention started in July 2006, and will continue for 3.5 years. Participants are Japanese and foreign residents living in the intervention and control regions (a total of population of 2,120,000 individuals).DiscussionThe present study is designed to evaluate the effectiveness of the community-based suicide prevention program in the seven participating areas.Trial registrationUMIN Clinical Trials Registry (UMIN-CTR) UMIN000000460.
Highlights
To respond to the rapid surge in the incidence of suicide in Japan, which appears to be an ongoing trend, the Japanese Multimodal Intervention Trials for Suicide Prevention (J-MISP) have launched a multimodal community-based suicide prevention program, NOCOMIT-J
The findings indicated that the recent increase in the number of suicides has been significantly more prominent in urban areas such as Tokyo, Osaka, and their surrounding areas, than in rural areas
The estimated sample sizes are not adjusted for 5-year age group, sex, and regional characteristics, if all assumptions are met, the statistical power will be over 80% for each group, regarding person-year incidences in the intervention and control regions
Summary
To respond to the rapid surge in the incidence of suicide in Japan, which appears to be an ongoing trend, the Japanese Multimodal Intervention Trials for Suicide Prevention (J-MISP) have launched a multimodal community-based suicide prevention program, NOCOMIT-J. Recent rapid increase of suicide in Japan (1) Changes in suicide incidence According to vital statistics collected by the Japan Ministry of Health, Labour, and Welfare in 1997, there were 23,494 suicides (15,901 men and 7,593 women), with the number rising to 31,755 (22,349 men and 9,406 women) in 1998, which represented a 35% increase. This was the highest rate of increase recorded since the Ministry began tracking mortality statistics. It is clear that suicide prevention measures are urgently needed in Japan
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