Internet suicide searches and the incidence of suicide in young people in Japan

Akihito Hagihara, Shogo Miyazaki, Takeru Abe

    Research output: Contribution to journalArticle

    48 Citations (Scopus)

    Abstract

    Although several case reports have suggested a relationship between accessing Internet suicide sites and the incidence of suicide, the influence of the Internet on the incidence of suicide is not known. Thus, we examined the association between Internet suicide-related searches and the incidence of suicide in 20-and 30-year-old individuals in Japan. The Box-Jenkins transfer function model was applied to monthly time series data from January 2004 to May 2010 (77 months). The terms ''hydrogen sulfide, '' ''hydrogen sulfide suicide, '' and ''suicide hydrogen sulfide suicide'' at (t-11) were related to the incidence of suicide among people aged in their 20 s (P = 0.005, 0.005, and 0.006, respectively) and people aged in their 30 s (P = 0.013, 0.011, and 0.012, respectively). ''BBS on suicide'' at (t-5) and ''suicide by jumping'' at (t-6) were related to the incidence of suicide in people aged 30-39 (P = 0.006 and 0.001, respectively). Internet searches for specific suicide-related terms are related to the incidence of suicide among 20-and 30-year-old individuals in Japan. Routine interrogation by a clinician about visiting Internet suicide websites and stricter regulation of these websites may reduce the incidence of suicide among young people.

    Original languageEnglish
    Pages (from-to)39-46
    Number of pages8
    JournalEuropean Archives of Psychiatry and Clinical Neuroscience
    Volume262
    Issue number1
    DOIs
    Publication statusPublished - 2012 Feb

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    Internet
    Suicide
    Japan
    Incidence
    Hydrogen Sulfide

    Keywords

    • Adolescent
    • Internet
    • Suicide

    ASJC Scopus subject areas

    • Psychiatry and Mental health
    • Biological Psychiatry
    • Pharmacology (medical)

    Cite this

    Internet suicide searches and the incidence of suicide in young people in Japan. / Hagihara, Akihito; Miyazaki, Shogo; Abe, Takeru.

    In: European Archives of Psychiatry and Clinical Neuroscience, Vol. 262, No. 1, 02.2012, p. 39-46.

    Research output: Contribution to journalArticle

    Hagihara, Akihito ; Miyazaki, Shogo ; Abe, Takeru. / Internet suicide searches and the incidence of suicide in young people in Japan. In: European Archives of Psychiatry and Clinical Neuroscience. 2012 ; Vol. 262, No. 1. pp. 39-46.
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