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Social Psychiatry and Psychiatric Epidemiology
Published in: Social Psychiatry and Psychiatric Epidemiology 4/2010

Open Access 01-04-2010 | Original Paper

Association of temporal factors and suicides in the United States, 2000–2004

Authors: Augustine J. Kposowa, Stephanie D’Auria

Published in: Social Psychiatry and Psychiatric Epidemiology | Issue 4/2010

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Abstract

Objective

The purpose of the study was to examine the association of temporal factors, in particular days of the week and seasons of the year and death from suicide in the United States.

Method

Data were pooled from the Multiple Cause of Death Files. Hierarchical logistic regression models were fitted to all deaths occurring in 2000 through 2004 by suicide.

Results

The incidence of suicide was significantly higher on Wednesdays, compared to Sunday. Specifically, individuals were 99% more likely to kill themselves on Wednesday than on Sunday. Suicides were more prevalent in the summer months, and they were less likely to occur in winter. The state suicide rate significantly elevated individual suicide risk. The results held even after controlling for the potentially confounding effects of socio-economic and demographic variables at both the individual and state levels.

Conclusion

It was concluded that the observed association between seasonality and suicide cannot be discounted as a mere coincidence. Future research ought to focus on integrating individual level data and contextual variables when testing for seasonality effects.
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Metadata
Title
Association of temporal factors and suicides in the United States, 2000–2004
Authors
Augustine J. Kposowa
Stephanie D’Auria
Publication date
01-04-2010
Publisher
Springer-Verlag
Published in
Social Psychiatry and Psychiatric Epidemiology / Issue 4/2010
Print ISSN: 0933-7954
Electronic ISSN: 1433-9285
DOI
https://doi.org/10.1007/s00127-009-0082-9

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