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Epidemiol Health : Epidemiology and Health



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Original Article Prevalence rate, incidence rate, case fatality ratio and death rate for stroke in Kang Wha county, 1976-1979
Il Soon Kim, Jong Ku Park, Hee Chull Oh
Epidemiol Health 1980;2(1):83-88
DOI: https://doi.org/
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To identify magnitude and dynamicity of stroke incidence and death, a series of community based studies on stroke was conducted from 1976 to 1979 in Kang Wha Island. Because of poor coverage of quality medical care and poor death registry system of Korea the accurate, reliable death rate and causes of death are largely unknown. For instance the death rates so far reported in Korea due to stroke were varied from 26 to 221 per 100,000 population. This big variation was largely due to the incomplete death registration and unreliable diagnosis for causes of death in Korea. However, all the records have unanimously shown that the stroke death has been the most common cause of deaths in Korea. The Kang Wha County where Yonsei University has developed community health demonstration project since 1975 and where health information system is well established was chosen for this study. A prevalence survey was conducted as of May 1, 1979 and the incidence and death rates were computed with events occurred for the past 4years from 1976 to 1979. The diagnosis of stroke was made by two physicians with predetermined criteria. The prevalence rate for stroke was 272 per 100,000 population which is considered to be very low compare with that of other countries. The incidence rate for stroke was 254 and death rate 195 per 100,000. These rates are considered to be one of the highest in the world. The high incidence and death rates and low prevalence rate for stroke were caused by very high case fatality ratio which was 65.8%.

Epidemiol Health : Epidemiology and Health