Does the installation of blue lights on train platforms prevent suicide? A before-and-after observational study from Japan

Tetsuya Matsubayashi, Yasuyuki Sawada, Michiko Ueda

研究成果: Article

22 引用 (Scopus)

抄録

Background: Railway and metro suicides constitute a major problem in many parts of the world. Japan has experienced an increase in the number of suicides by persons diving in front of an oncoming train in the last several years. Some major railway operators in Japan have begun installing blue light-emitting-diode (LED) lamps on railway platforms and at railway crossings as a method of deterring suicides, which is less costly than installing platform screen doors. However, the effectiveness of the blue lights in this regard has not yet been proven. Methods: This study evaluates the effect of blue lights on the number of suicides at 71 train stations by using panel data between 2000 and 2010 from a railway company in a metropolitan area of Japan. We use a regression model and compare the number of suicides before and after and with and without the intervention by the blue light. We used the number of suicides at 11 stations with the intervention as the treatment group and at the other 60 stations without the intervention as the control group. Results: Our regression analysis shows that the introduction of blue lights resulted in a 84% decrease in the number of suicides (CI: 14-97%). Limitation: The analysis relies on data from a single railroad company and it does not examine the underlying suicide-mitigation mechanism of blue lights. Conclusion: As blue lights are easier and less expensive to install than platform screen doors, they can be a cost-effective method for suicide prevention.

元の言語English
ページ(範囲)385-388
ページ数4
ジャーナルJournal of Affective Disorders
147
発行部数1-3
DOI
出版物ステータスPublished - 2013 5
外部発表Yes

Fingerprint

Suicide
Observational Studies
Japan
Light
Railroads
Diving
Regression Analysis
Costs and Cost Analysis
Control Groups

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Clinical Psychology

これを引用

Does the installation of blue lights on train platforms prevent suicide? A before-and-after observational study from Japan. / Matsubayashi, Tetsuya; Sawada, Yasuyuki; Ueda, Michiko.

:: Journal of Affective Disorders, 巻 147, 番号 1-3, 05.2013, p. 385-388.

研究成果: Article

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