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Acta Psychiatr Scand. 2003 Dec;108(6):402-9.

Weather and suicide: the present state of knowledge on the association of meteorological factors with suicidal behaviour.

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  • 1Department of General Psychiatry, University of Innsbruck, Anichstrasse 35, A-6020 Innsbruck, Austria. eberhard.deisenhammer@uibk.ac.at

Abstract

OBJECTIVE:

To review the available literature on the association between daily and longer-term weather data and the incidence of attempted and completed suicide.

METHOD:

A computerized search supplemented by a cross-check of the references sections of the thereby identified papers was performed.

RESULTS:

A total of 27 studies looking for a relationship between attempted or completed suicide and weather or climate data were found. Most of the papers reported a statistical association of suicidal acts with at least one weather factor. However, the results are not conclusive and in part contradictory.

CONCLUSION:

Possibly due to the high variance in methodological approaches of the studies it is not possible to identify a specific weather condition associated with a generally higher risk for suicide. Weather and seasonal effects may interact with each other. Environmental effects on brain function and weather-related interactions of people may be involved in the occurrence of suicidal behaviour.

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PMID:
14616220
[PubMed - indexed for MEDLINE]
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