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Incidence and case fatality of acute myocardial infarction in Korea, 2011-2020
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Yeeun Seo, Jenny Moon, Hyeok-Hee Lee, Hyeon Chang Kim, Fumie Kaneko, Sojung Shin, Eunji Kim, Jang-Whan Bae, Byeong-Keuk Kim, Seung Jun Lee, Min Kim, Hokyou Lee
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Epidemiol Health. 2024;46:e2024002. Published online December 26, 2023
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DOI: https://doi.org/10.4178/epih.e2024002
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 Abstract
Summary
 PDF Supplementary Material
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Abstract
OBJECTIVES
Cardiovascular diseases are a leading cause of mortality worldwide, and acute myocardial infarction (AMI) is particularly fatal condition. We evaluated the incidence and case fatality rates of AMI in Korea from 2011 to 2020.
METHODS We utilized data from the National Health Insurance Services to calculate crude, age-standardized, and age-specific incidence rates, along with 30-day and 1-year case fatality rates, of AMI from 2011 to 2020. Age-standardized incidence rates were determined using direct standardization to the 2005 population.
RESULTS The crude incidence rate of AMI per 100,000 person-years consistently increased from 44.7 in 2011 to 68.3 in 2019, before decreasing slightly to 66.2 in 2020. The age-standardized incidence rate of AMI displayed a 19% rise from 2011 to 2019, followed by a slight decline in 2020. The increasing trend for AMI incidence was more pronounced in males than in females. Both 30-day and 1-year case fatality rates remained stable among younger individuals but showed a decrease among older individuals. There was a minor surge in case fatality in 2020, particularly among recurrent AMI cases.
CONCLUSIONS Over the past decade, the AMI incidence rate in Korea has consistently increased, with a slight downturn in 2020. The case fatality rate has remained relatively stable except for a minor increase in 2020. This study provides data for continuous surveillance, the implementation of targeted interventions, and the advancement of research aimed at AMI in Korea.
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Summary
Key Message
This study observed the incidence rate of acute myocardial infarction using data from Korean National Health Insurance Service. From 2011 to 2019, the incidence rate increased, but there was a slight decrease in 2020. Additionally, the fatality rate remained relatively stable throughout the study period, except for an increase in 2020. The study emphasizes the importance of continuous monitoring and preventive strategies for effective management of acute myocardial infarction.
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Incidence and case fatality of stroke in Korea, 2011-2020
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Jenny Moon, Yeeun Seo, Hyeok-Hee Lee, Hokyou Lee, Fumie Kaneko, Sojung Shin, Eunji Kim, Kyu Sun Yum, Young Dae Kim, Jang-Hyun Baek, Hyeon Chang Kim
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Epidemiol Health. 2024;46:e2024003. Published online December 26, 2023
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DOI: https://doi.org/10.4178/epih.e2024003
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Abstract
Summary
PDFSupplementary Material
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Abstract
OBJECTIVES
Stroke remains the second leading cause of death in Korea. This study was designed to estimate the crude, age-adjusted and age-specific incidence rates, as well as the case fatality rate of stroke, in Korea from 2011 to 2020.
METHODS We utilized data from the National Health Insurance Services from January 1, 2002 to December 31, 2020, to calculate incidence rates and 30-day and 1-year case fatality rates of stroke. Additionally, we determined sex and age-specific incidence rates and computed age-standardized incidence rates by direct standardization to the 2005 population.
RESULTS The crude incidence rate of stroke hovered around 200 (per 100,000 person-years) from 2011 to 2015, then surged to 218.4 in 2019, before marginally declining to 208.0 in 2020. Conversely, the age-standardized incidence rate consistently decreased by 25% between 2011 and 2020. When stratified by sex, the crude incidence rate increased between 2011 and 2019 for both sexes, followed by a decrease in 2020. Age-standardized incidence rates displayed a downward trend throughout the study period for both sexes. Across all age groups, the 30-day and 1-year case fatality rates of stroke consistently decreased from 2011 to 2019, only to increase in 2020.
CONCLUSIONS Despite a decrease in the age-standardized incidence rate, the total number of stroke events in Korea continues to rise due to the rapidly aging population. Moreover, 2020 witnessed a decrease in incidence but an increase in case fatality rates.
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Summary
Key Message
This nationwide study using Korean National Health Insurance System data reveals a decade-long downward trend in overall stroke incidence rates. While the crude incidence rate showed a temporary increase from 2016 to 2019 before a slight decline in 2020, the age-standardized incidence rate consistently decreased over the study period. The study emphasizes the significance of continuous monitoring and preventive strategies to address stroke as a public health concern in Korea
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