Skip to main content

Advertisement

Table 1 Assumptions of the outcome and suicide rates in Group 1 and Group 2

From: A community intervention trial of multimodal suicide prevention program in Japan: A Novel multimodal Community Intervention program to prevent suicide and suicide attempt in Japan, NOCOMIT-J

  Group 1 Group 2
Suicide rate in control regions (per 100,000 individuals) 30 20
Proportion of expected numbers of ambulance transports due to "self-harm" (severe and mild cases) relative to completed suicides 50% 50%
Expected suicide rate reduction over observed 3 years by intervention 20% 15%
Significance level (two-sided) 5% 5%
  1. Notes. These assumptions of the outcome and suicide rates (2002–2004) are used to calculate the sample sizes in this study.
  2. Group1: regions with a relatively high suicide rate compared to control regions, examined to gauge the effectiveness of the community-based multimodal intervention program for suicide prevention.
  3. Group 2: highly-populated regions, examined in order to explore the effectiveness of the community-based multimodal intervention program for suicide prevention.