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Abstract
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OBJECTIVE: The relationship between suicide attempt, climate and air-pollution has been suggested in the literature. This study aimed to evaluate the seasonal variation of these associations.
METHODS: The association between the number of weekly emergency room (ER) visit for a suicide attempt, climatic factors and air-pollution factors were examined statistically.
RESULTS: During 617 weeks, a total of 2,181 patients have visited an ER of a university-affiliated hospital in South Korea. There was no difference in the number of visit among seasons. In the multivariate regression analysis, diurnal temperature range was positively associated with ER visits for a suicide attempt in the spring. On the other hand, the maximum temperature was related to the weekly number of ER visit for a suicide attempt in autumn and winter. Among the air-pollution factors, ozone level was positively associated with the ER visit for a suicide attempts in the correlational analysis, however, such association was not found in the multivariate regression analysis.
CONCLUSION: The association between climatic factors and suicide attempt varied according to the season. In addition, the influence of air-pollution on suicide attempt might be moderated by climatic factors. Copyright © 2020 Korean Academy of Sleep Medicine.
Language: en |