Department of Clinical Psychology, Graduate School of Education, University of Tokyo, Tokyo, Japan.
Psychiatry Clin Neurosci. 2011 Jun;65(4):392-4. doi: 10.1111/j.1440-1819.2011.02216.x. Epub 2011 May 16.
Cross-correlation was examined for the volume of suicide-related Internet searches and suicide death rate. Analysis of Google data and figures released by the Ministry of Health, Labour, and Welfare indicated that the volume of searches using the search terms jisatsu (suicide) and jisatsu houhou (suicide method) are not correlated with the suicide death rate. In addition, a rising suicide death rate might be related to the increase in suicide-related search activity (particularly utsu[depression]), but an increase in suicide-related search activity itself is not directly linked to the rise of suicide death rate.
对与自杀相关的互联网搜索量和自杀死亡率之间的互相关系进行了检验。对谷歌数据和厚生劳动省公布的数据的分析表明，使用“自殺”和“自殺方法”等搜索词的搜索量与自杀死亡率没有相关性。此外，自杀死亡率的上升可能与与自杀相关的搜索活动（特别是“鬱”）的增加有关，但与自杀相关的搜索活动本身的增加与自杀死亡率的上升并无直接联系。
