sh.sePublications
Change search
ReferencesLink to record
Permanent link

Direct link
Birthdays are associated with an increased risk of suicide in Japan: Evidence from 27,007 deaths in Tokyo in 2001-2010
Södertörn University, School of Social Sciences, Sociology. Södertörn University, School of Social Sciences, SCOHOST (Stockholm Centre on Health of Societies in Transition). University of Tokyo, Tokyo, Japan.
University of Tokyo, Tokyo, JapanUniversity of Tokyo, Tokyo, Japan / Nagasaki Univiversity, Nagasaki, Japan.
University of Tokyo, Tokyo, Japan.
University of Tokyo, Tokyo, Japan.
Show others and affiliations
2016 (English)In: Journal of Affective Disorders, ISSN 0165-0327, E-ISSN 1573-2517, Vol. 200, 259-265 p.Article in journal (Refereed) PublishedText
Abstract [en]

Background: Previous research has produced conflicting findings concerning whether birthdays are associated with an increased risk of suicide. This study examined the association in Tokyo, Japan. Methods: Suicide data (ICD-10 codes X60-X84) for the period 2001-2010 were obtained from the Japanese Ministry of Health, Labour and Welfare. A time-stratified case-crossover design was used with conditional logistic regression analysis being performed to estimate within-subject birthday exposures' while controlling for meteorological conditions and public holidays. Results: There were 27,007 suicides in the study period. For males the 5 days before the birthday and the week after the birthday were associated with significantly higher odds for suicide with the odds ratio being highest on the actual birthday (OR =1.677, 95% CI: 1.294, 2.172). For females, significantly higher odds for completed suicide were observed 7-11 days before the birthday. Stratified analyses showed different at risk time patterns among men from different age groups, and that married men had higher odds for suicide on, and for the 4 days before and in the 2 weeks after their birthday. Limitations: We lacked detailed information on suicides which would have enabled a better understanding of the observed associations. Conclusions: Birthdays are associated with an increased risk for suicide in Tokyo, Japan. Health professionals who work with individuals at risk of suicide should be made aware that birthdays are associated with an elevated suicide risk. This information should also be communicated in wider suicide prevention campaigns.

Place, publisher, year, edition, pages
2016. Vol. 200, 259-265 p.
Keyword [en]
Birthday, Japan, Suicide, Suicide prevention
National Category
Sociology
Identifiers
URN: urn:nbn:se:sh:diva-30617DOI: 10.1016/j.jad.2016.04.028ISI: 000377392400035PubMedID: 27152761ScopusID: 2-s2.0-84968718650OAI: oai:DiVA.org:sh-30617DiVA: diva2:949362
Available from: 2016-07-19 Created: 2016-07-18 Last updated: 2016-07-19Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMedScopus

Search in DiVA

By author/editor
Stickley, Andrew
By organisation
SociologySCOHOST (Stockholm Centre on Health of Societies in Transition)
In the same journal
Journal of Affective Disorders
Sociology

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 71 hits
ReferencesLink to record
Permanent link

Direct link