ArticleInternational journal of biometeorology2014
Does diurnal temperature range influence seasonal suicide mortality? Assessment of daily data of the Helsinki metropolitan area from 1973 to 2010.
Article in International journal of biometeorology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.
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Who cites it
14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 49 citations in OpenAlex.
- A Systematic Literature Review of the Impact of Climate Change on the Global Demand for Psychiatric Services.International journal of environmental research and public health · 2023Pooled it
- Impact of diurnal temperature range on human health: a systematic review.International journal of biometeorology · 2014Pooled it
- Daily temperature variability and mental health-related hospital visits in New York State.Environmental research · 2024Article
- Good weather for a ride (or not?): how weather conditions impact road accidents - a case study from Wielkopolska (Poland).International journal of biometeorology · 2024Article
- Prevention of suicides associated with global warming: perspectives from early career psychiatrists.Frontiers in psychiatry · 2023Article
- Potential links between brown adipose tissue, circadian dysregulation, and suicide risk.Frontiers in neuroscience · 2023Article
- Hot Weather and Suicide Deaths among Older Adults in Hong Kong, 1976-2014: A Retrospective Study.International journal of environmental research and public health · 2020Article
- Associations between ambient high temperatures and suicide mortality: a multi-city time-series study in China.Environmental science and pollution research international · 2019Article
- Where are weather-suicide associations valid? An examination of nine US counties with varying seasonality.International journal of biometeorology · 2018Article
- The impact of ambient air pollution on suicide mortality: a case-crossover study in Guangzhou, China.Environmental health : a global access science source · 2016Article
- Disparities in suicide mortality trends between United States of America and 25 European countries: retrospective analysis of WHO mortality database.Scientific reports · 2016Article
- Analyzing Personal Happiness from Global Survey and Weather Data: A Geospatial Approach.PloS one · 2016Article
- Association of weekly suicide rates with temperature anomalies in two different climate types.International journal of environmental research and public health · 2014Article
- Local daily temperatures, thermal seasons, and suicide rates in Finland from 1974 to 2010.Environmental health and preventive medicine · 2014Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Several studies show a peak in suicide rates during springtime and suggest differences in the seasonal variation of suicides. However, the seasonal distribution of the temperature impact on suicide is less clear. This study investigated the relationship between diurnal temperature range (DTR) on suicide mortality. Daily temperature and suicide data for Helsinki were analyzed for the period of 1973-2010 inclusive. Overall, DTR reached its maximum during the spring from mid-April to mid-June, which is also the season with highest suicide mortality in the study region. Specifically, the seasonal timing and maxima for both DTR and suicides vary from year to year. Time series analysis of DTR and suicide records revealed a significant (P<0.01) correlation between the springtime DTR maxima and suicide rates for males. No similar association could be found for females. These results provide evidence that a higher springtime DTR could be linked statistically to a higher seasonal suicide rate each spring, whereas the exact timing of the DTR peak did not associate with the seasonal suicide rate. A possible mechanism behind the springtime association between the DTR and suicides originates from brown adipose tissue (BAT) over-activity. Activation of BAT through the winter improves cold tolerance at the cost of heat tolerance. This might trigger anxiety and psychomotor agitation, affecting mood in a negative way. As a hypothesis, the compromised heat tolerance is suggested to increase the risk of death from suicide.
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