@article{ref1,
title="Changing seasonal pattern of suicides in Korea between 2000 and 2019",
journal="Psychiatry investigation",
year="2022",
author="Nam, Hee Jung and Sim, Hyun-Bo and Lee, Ju-Yeon and Kim, Sung-Wan and Kim, Jae-Min and Ryu, Seunghyong",
volume="19",
number="4",
pages="320-325",
abstract="OBJECTIVE: This study aimed to investigate the changing seasonal pattern of suicides in Korea between 2000 and 2019. <br><br>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. <br><br>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. <br><br>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.<p /> <p>Language: en</p>",
language="en",
issn="1738-3684",
doi="10.30773/pi.2021.0387",
url="http://dx.doi.org/10.30773/pi.2021.0387"
}