Changing Seasonal Pattern of Suicides in Korea Between 2000 and 2019
Psychiatry Investigation
;
: 320-325, 2022.
Article
in English
| WPRIM
| ID: wpr-926891
ABSTRACT
Objective@#This study aimed to investigate the changing seasonal pattern of suicides in Korea between 2000 and 2019. @*Methods@#We calculated a seasonal pattern of suicides between 2000 and 2019 using a non-stationary cosinor model. In addition, we estimated the effect of each month on the suicide incidence compared to a reference month, using a generalized linear model with a categorical variable of the month. Then, we visualized the rate ratio curves of suicides by gender, age group, and subperiod. @*Results@#We observed a seasonal pattern of suicides in Korea with a spring peak and a winter trough. The seasonal ups and downs were most pronounced in suicides among the elderly ≥65 years. However, the seasonal pattern has not been consistent over the past two decades, with lowering seasonal peaks since 2012. The amplitude of seasonality was also lower in 2010–2019 than in 2000–2009. @*Conclusion@#The seasonal pattern of suicides seems to have diminished in Korea in recent years. Thus, we need further studies to investigate climatic and non-climatic factors influencing the seasonality of suicides and the consequence of the change.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Prognostic study
Language:
English
Journal:
Psychiatry Investigation
Year:
2022
Type:
Article
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