Increasing Trends in the Incidence and Prevalence of Epilepsy in KoreaIncreasing Trends in the Incidence and Prevalence of Epilepsy in Korea
- Other Titles
- Increasing Trends in the Incidence and Prevalence of Epilepsy in Korea
- Authors
- 전지예; 이혜성; 신주영; 문혜진; 이서영; 김재문
- Issue Date
- Jul-2021
- Publisher
- 대한신경과학회
- Keywords
- epilepsy; epidemiology; incidence; prevalence; trend.
- Citation
- Journal of Clinical Neurology, v.17, no.3, pp 393 - 399
- Pages
- 7
- Journal Title
- Journal of Clinical Neurology
- Volume
- 17
- Number
- 3
- Start Page
- 393
- End Page
- 399
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/19208
- DOI
- 10.3988/jcn.2021.17.3.393
- ISSN
- 1738-6586
2005-5013
- Abstract
- Background and Purpose There have been few reports on recent trends in the occurrence of epilepsy. The aim of this study was to estimate the incidence and prevalence of epilepsy and analyze their annual trends in Korea over the period 2009–2017.
Methods This nationwide population-based study was carried out using the National Health Insurance Service of Korea database. A prevalent case was defined as one of a patient receiving a prescription of anticonvulsants under the diagnostic codes for epilepsy or seizure. An incident case was ascertained by confirming the absence of any epilepsy-related diagnostic codes and anticonvulsant prescription for 2 years or more before the operational definition for a prevalent case was met. Alternative operational definitions for epilepsy were tested. The temporal trends of the incidence and prevalence of epilepsy were analyzed using a Poisson regression model, and are expressed as average annual percentage changes (AAPCs).
Results The incidence of epilepsy increased from 28.7/100,000 persons in 2009 to 35.4/100,000 persons in 2017. The prevalence increased gradually from 3.4/1,000 persons in 2009 to 4.8/1,000 persons in 2017. These increasing trends were more evident among elderly subjects aged ≥75 years and in those who had codes for epilepsy or seizure as an additional diagnosis. Age standardization revealed a less prominent but still increasing trend in both incidence (AAPC=0.48%) and prevalence (AAPC=3.11%).
Conclusions There have been increasing trends in both the prevalence and incidence of epilepsy in Korea between 2009 and 2017. This finding appears to be related to societal aging and the high incidence of symptomatic epilepsy in the elderly population.
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