The Impact of Moderate Earthquakes on Antidepressant Prescriptions in Ulsan, South Korea: A Controlled Interrupted Time Series Analysis

Background: In 2016, two consecutive moderate magnitude earthquakes occurred in Ulsan, South Korea. Therefore, we aimed to investigate the impact of earthquakes on the mental health of residents in Ulsan. Methods: We used data from the 2015–2017 Korean Health Insurance Review & Assessment Servic...

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Main Authors: Eun-San Kim, Jiyoon Yeo, Yongjoo Kim, In-Hyuk Ha
Format: Article
Language:English
Published: Japan Epidemiological Association 2023-12-01
Series:Journal of Epidemiology
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jea/33/12/33_JE20220171/_pdf
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author Eun-San Kim
Jiyoon Yeo
Yongjoo Kim
In-Hyuk Ha
author_facet Eun-San Kim
Jiyoon Yeo
Yongjoo Kim
In-Hyuk Ha
author_sort Eun-San Kim
collection DOAJ
description Background: In 2016, two consecutive moderate magnitude earthquakes occurred in Ulsan, South Korea. Therefore, we aimed to investigate the impact of earthquakes on the mental health of residents in Ulsan. Methods: We used data from the 2015–2017 Korean Health Insurance Review & Assessment Service National Patient Sample. We conducted an interrupted time series analysis using location-based controls. Changes in the number of antidepressants, benzodiazepines, and zolpidem prescriptions in Ulsan were compared to controls. Overall changes in weekly prescriptions 1 year after the first earthquake, compared to a non-earthquake scenario, were estimated. Results: In antidepressant prescriptions, the increase in trend after an earthquake was significantly higher than controls. However, the changes in benzodiazepines and zolpidem prescribing were not significant. Overall, the impact of the earthquake on weekly antidepressant prescriptions at 1 year was estimated as a 1.32 (95% CI, 1.18–1.56) rate ratio compared to the non-earthquake scenario. This corresponded to an increase of 1,989.7 (95% CI, 1,202.1–3,063.0) in the number of prescriptions. Among subgroups, the increase was highest among males aged 20–39 years. Conclusion: The moderate earthquake in Ulsan was associated with an increase in antidepressant prescriptions. The increase in the male group aged 20–39 was the highest. The impact may vary according to the context of the population.
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spelling doaj.art-f2258a4d778942e1a5780e0142fa36c42023-12-05T03:40:42ZengJapan Epidemiological AssociationJournal of Epidemiology0917-50401349-90922023-12-01331260060610.2188/jea.JE20220171The Impact of Moderate Earthquakes on Antidepressant Prescriptions in Ulsan, South Korea: A Controlled Interrupted Time Series AnalysisEun-San Kim0Jiyoon Yeo1Yongjoo Kim2In-Hyuk Ha3Jaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul, Republic of KoreaDepartment of Economics, Korea University, Seoul, Republic of KoreaCollege of Korean Medicine, Sangji University, Wonju, Republic of KoreaJaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul, Republic of KoreaBackground: In 2016, two consecutive moderate magnitude earthquakes occurred in Ulsan, South Korea. Therefore, we aimed to investigate the impact of earthquakes on the mental health of residents in Ulsan. Methods: We used data from the 2015–2017 Korean Health Insurance Review & Assessment Service National Patient Sample. We conducted an interrupted time series analysis using location-based controls. Changes in the number of antidepressants, benzodiazepines, and zolpidem prescriptions in Ulsan were compared to controls. Overall changes in weekly prescriptions 1 year after the first earthquake, compared to a non-earthquake scenario, were estimated. Results: In antidepressant prescriptions, the increase in trend after an earthquake was significantly higher than controls. However, the changes in benzodiazepines and zolpidem prescribing were not significant. Overall, the impact of the earthquake on weekly antidepressant prescriptions at 1 year was estimated as a 1.32 (95% CI, 1.18–1.56) rate ratio compared to the non-earthquake scenario. This corresponded to an increase of 1,989.7 (95% CI, 1,202.1–3,063.0) in the number of prescriptions. Among subgroups, the increase was highest among males aged 20–39 years. Conclusion: The moderate earthquake in Ulsan was associated with an increase in antidepressant prescriptions. The increase in the male group aged 20–39 was the highest. The impact may vary according to the context of the population.https://www.jstage.jst.go.jp/article/jea/33/12/33_JE20220171/_pdfearthquakemental healthantidepressantinterrupted time series analysis
spellingShingle Eun-San Kim
Jiyoon Yeo
Yongjoo Kim
In-Hyuk Ha
The Impact of Moderate Earthquakes on Antidepressant Prescriptions in Ulsan, South Korea: A Controlled Interrupted Time Series Analysis
Journal of Epidemiology
earthquake
mental health
antidepressant
interrupted time series analysis
title The Impact of Moderate Earthquakes on Antidepressant Prescriptions in Ulsan, South Korea: A Controlled Interrupted Time Series Analysis
title_full The Impact of Moderate Earthquakes on Antidepressant Prescriptions in Ulsan, South Korea: A Controlled Interrupted Time Series Analysis
title_fullStr The Impact of Moderate Earthquakes on Antidepressant Prescriptions in Ulsan, South Korea: A Controlled Interrupted Time Series Analysis
title_full_unstemmed The Impact of Moderate Earthquakes on Antidepressant Prescriptions in Ulsan, South Korea: A Controlled Interrupted Time Series Analysis
title_short The Impact of Moderate Earthquakes on Antidepressant Prescriptions in Ulsan, South Korea: A Controlled Interrupted Time Series Analysis
title_sort impact of moderate earthquakes on antidepressant prescriptions in ulsan south korea a controlled interrupted time series analysis
topic earthquake
mental health
antidepressant
interrupted time series analysis
url https://www.jstage.jst.go.jp/article/jea/33/12/33_JE20220171/_pdf
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