• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Does spread of suicide related information by social media cause suicide?

Research Project

Project/Area Number 26870387
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Life / Health / Medical informatics
Epidemiology and preventive medicine
Research InstitutionOkayama University

Principal Investigator

Mitsuhashi Toshiharu  岡山大学, 大学病院, 助教 (30716890)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2015: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords自殺予防 / ソーシャルメディア / Twitter
Outline of Final Research Achievements

First, I assess whether the number of tweets on Twitter changes during suicide prevention periods. The number of preventive tweets increased by 15.62 tweets (95% CI 4.16, 27.09 p=0.008) during suicide support periods.
Next, I analysed to identify factors underlying individuals' vulnerability to suicide based on recent increases in suicide-related tweets. Results were following. Individuals aged 40 years or younger, there was significantly high effect modifications (OR=1.09, 95% CI 1.03-1.15 compared with older individuals). Additionally, males (OR=1.12, 95% CI 1.07-1.18), those who were unemployed (RRR=1.12, 95% CI 1.02-1.22), those who were divorced (RRR=1.11, 95% CI 1.03-1.19), and residents of urban areas (OR=1.26, 95% CI 1.17-1.35) had significantly high effect modifications.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (3 results)

All 2017 2015

All Journal Article (2 results) (of which Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (1 results)

  • [Journal Article] Increase in number of suicide preventive tweets during suicide prevention periods in Japan: Results of a time-series analysis2017

    • Author(s)
      Mitsuhashi Toshiharu
    • Journal Title

      Zenodo (preprint)

      Volume: -

    • DOI

      10.5281/zenodo.569604

    • Related Report
      2016 Annual Research Report
    • Open Access / Acknowledgement Compliant
  • [Journal Article] Suicide vulnerability due to increased suicide-related Tweets: A case-only analysis2017

    • Author(s)
      Mitsuhashi Toshiharu
    • Journal Title

      Zenodo (preprint)

      Volume: -

    • DOI

      10.5281/zenodo.572270

    • Related Report
      2016 Annual Research Report
    • Open Access / Acknowledgement Compliant
  • [Presentation] 自殺予防期間中には自殺関連ツイート数の変動があるか?;時系列分析による検討結果2015

    • Author(s)
      三橋利晴
    • Organizer
      第35回医療情報学連合大会(第16回日本医療情報学会学術大会)
    • Place of Presentation
      沖縄コンベンションセンター(沖縄県宜野湾市)
    • Year and Date
      2015-11-02
    • Related Report
      2015 Research-status Report

URL: 

Published: 2014-04-04   Modified: 2018-03-22  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi