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Effects of temperature variation on suicide in five U.S. counties, 1991–2001
Abstract
Effects of weather variables on suicide are well-documented, but there is still little consistency among the results of most studies. Nevertheless, most studies show a peak in suicides during the spring season, and this is often attributed to increased temperatures. The purpose of this study is to test the relationship between monthly temperature and monthly suicide, independent of months or seasons, for five counties located across the United States. Harmonic analysis shows that four of the five counties display some seasonal components in the suicide data. However, simple linear regression shows no correlation between suicide and temperature, and discriminant analysis shows that monthly departure from mean annual suicide rates is not a useful tool for identifying months with temperatures that are colder or warmer than the annual average. Therefore, it appears that the seasonality of suicides is due to factors other than temperature.
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“The research most directly related to our investigation links higher temperatures to higher incidence of suicide (Page et al., 2007; Ajdacic-Gross et al., 2007; Dixon et al., 2007; Kim et al., 2011; Tsai and Cho, 2012; Likhvar et al., 2011; Kim et al., 2015; Dixon and Kalkstein, 2018; Burke et al., 2018)”
From Temperature and mental health: Evidence from the spectrum of mental health outcomes (2019) · cites this paper as Dixon et al., 2007
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Metadata
- Authors
- Dixon, P. G., McDonald, A. N., Scheitlin, K. N., Stapleton, J. E., Allen, J. S., Carter, W. M., Holley, M. R., Inman, D. D., & Roberts, J. B.
- Affiliations
- Mississippi State University (US)
- Corresponding author
- Dixon, P. G.
- Venue
- International Journal of Biometeorology
- Published
- 2007-01-11
- Volume
- 51
- Issue
- 5
- Pages
- 395-403
- ISSN
- 0020-7128 (ISSN-L)
- 1432-1254
- OpenAlex
- W1973953898
- Cited by
- 58
- References
- 43
- Citations by year
- 2026: 2 · 2024: 3 · 2023: 4 · 2022: 2 · 2021: 3 · 2020: 3 · 2019: 4 · 2018: 7 · 2016: 7 · 2015: 3 · 2014: 4 · 2013: 1 · 2012: 2
- FWCI
- 3.62
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- International Journal of Biometeorology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Psychology › Clinical Psychology › Suicide and Self-Harm Studies
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Climate Change and Health Impacts
- Social Sciences › Sociology and Political Science › Homicide, Infanticide, and Child Abuse
- Keywords
- suicide, temperature, seasonal variation, seasonal component, monthly temperature, suicide rates, biometeorology
- MeSH terms
- Climate, Female, Humans, Male, Seasons, Suicide, Temperature, United States, Weather, Linear Models
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