Suicide and meteorological factors in São Paulo, Brazil, 1996-2011: a time series analysis
Braz. J. Psychiatry (São Paulo, 1999, Impr.)
;
39(3): 220-227, July-Sept. 2017. tab, graf
Article
in English
| LILACS
| ID: biblio-899352
ABSTRACT
Objective:
Considering the scarcity of reports from intertropical latitudes and the Southern Hemisphere, we aimed to examine the association between meteorological factors and suicide in São Paulo.Method:
Weekly suicide records stratified by sex were gathered. Weekly averages for minimum, mean, and maximum temperature (°C), insolation (hours), irradiation (MJ/m2), relative humidity (%), atmospheric pressure (mmHg), and rainfall (mm) were computed. The time structures of explanatory variables were modeled by polynomial distributed lag applied to the generalized additive model. The model controlled for long-term trends and selected meteorological factors.Results:
The total number of suicides was 6,600 (5,073 for men), an average of 6.7 suicides per week (8.7 for men and 2.0 for women). For overall suicides and among men, effects were predominantly acute and statistically significant only at lag 0. Weekly average minimum temperature had the greatest effect on suicide; there was a 2.28% increase (95%CI 0.90-3.69) in total suicides and a 2.37% increase (95%CI 0.82-3.96) among male suicides with each 1 °C increase.Conclusion:
This study suggests that an increase in weekly average minimum temperature has a short-term effect on suicide in São Paulo.
Full text:
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Index:
LILACS (Americas)
Main subject:
Suicide
/
Tropical Climate
/
Cities
/
Meteorological Concepts
Type of study:
Prognostic study
Limits:
Female
/
Humans
/
Male
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Braz. J. Psychiatry (São Paulo, 1999, Impr.)
Journal subject:
Psychiatry
Year:
2017
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Alfenas/BR
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