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Table 3 Prevalence of suicide ideation and suicide attempts

From: Prevalence and associated factors of suicidality in Japanese adolescents: results from a population-based questionnaire survey

  n None Suicidal ideation Suicide attempt
Total   22,419 15,245 68.0% 5765 25.7% 1206 5.4%
Grade 7th 4371 3011 68.9% 1123 25.7% 203 4.6%
  8th 4486 3088 68.8% 1130 25.2% 233 5.2%
  9th 4396 3043 69.2% 1054 24.0% 261 5.9%
  10th 3683 2492 67.7% 961 26.1% 191 5.2%
  11th 3024 1990 65.8% 836 27.6% 176 5.8%
  12th 2396 1595 66.6% 648 27.0% 138 5.8%
Sex Male 8907 6606 74.2% 1925 21.6% 309 3.5%
  Female 13,454 8613 64.0% 3830 28.5% 893 6.6%
  1. The numbers and percentages of participants who selected “no idea” for suicidal question do not appear in the table. The numbers of participants with missing values for each factor likewise do not appear