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KMID : 0614720130560050431
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Journal of Korean Medical Association
2013 Volume.56 No. 5 p.431 ~ p.436
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Estimation of the prevalence of Korean adults aged 50 years or more with knee osteoarthritis based on the data from fifth Korea National Health and Nutrition Examination Survey
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Shin Dong-Wook
Nam Su-Jeong
Bang Yun-Sic
Lee Jong-Yeon
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Abstract
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This study estimated the number of Korean adults aged 50 years or more with osteoarthritis (OA) based on the data from fifth Korea National Health and Nutrition Examination Survey (K-NHANES). We analyzed the knee X-ray finding and symptom questionnaire data obtained from the fifth K-NHANES conducted in 2010. The number of Korean adults aged 50 years or more with radiographic OA (those who had grade II or higher Kellgren-Lawrence score for OA) and symptomatic OA (those who had grade II or higher Kellgren-Lawrence score for OA and knee pain) were estimated using surveyfreq procedure of the SAS statistical package. It was estimated that there were 5,294,073 (proportion, 37.8%; 95% confidence interval, 4,739,995 to 5,848,150) patients with radiographic OA and 2,003,471 (proportion, 14.3%; 95% confidence interval, 1,693,239 to 2,313,703) patients with symptomatic OA among 14,010,367 Korean adults aged 50 years or more in 2010. This study has a limitation that symptomatic OA based on only the self report of symptom questionnaire. So, it is important that the physician do a physical examination to diagnose OA. Also, further efforts to investigate large-scale prospective studies are needed.
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KEYWORD
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Koreans, Adult, Osteoarthritis, Epidemiology
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