Prevalence of knee osteoarthritis, risk factors, and quality of life: The Fifth Korean National Health And Nutrition Examination Survey

International Journal of Rheumatic Diseases
Sunggun Lee, Seon-Jeong Kim

Abstract

Although there have been regional population-based studies on the prevalence of knee osteoarthritis (KOA) and its risk factors in South Koreans, those studies in common had limited external validity. This study aims to estimate the national prevalence of KOA and its risk factors using a complex sampling design. This was a cross-sectional study including 9512 participants aged ≥ 50 years of The Fifth Korean National Health and Nutrition Examination Survey, who were selected using two-step stratified clustered equal-probability systematic sampling. Radiographic KOA (RKOA) was defined as a Kellgren-Lawrence grade of ≥ 2. Symptoms of KOA were evaluated through a health interview. Obesity was defined as a body mass index ≥ 27.5 kg/m2. Quality of life was measured by the Korean version of European Quality of Life Questionnaire (EQ-5D). The prevalence of RKOA was 21.1% (95% CI: 19.6-22.8%) in men, and 43.8% (42.0-45.6%) in women. The prevalence of symptomatic RKOA (SRKOA) was 4.4% (3.8-5.2%) and 19.2% (17.9-20.6%) in men and women, respectively. The EQ-5D index was lower in participants with KOA. When plotted against mean age and prevalence of obesity, regions with a higher mean age and prevalence of obesity had higher prevalence of K...Continue Reading

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Citations

Dec 12, 2017·Current Opinion in Rheumatology·Ernest R Vina, C Kent Kwoh
Jun 26, 2020·Frontiers in Pharmacology·Yifan WuKehe Yu
Mar 6, 2018·Healthcare Informatics Research·Punyotai ThamjamrassriJeeyoung Hong
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Feb 8, 2019·International Journal of Rheumatic Diseases·Ha-Rim ParkSoo-Kyung Cho
Nov 7, 2019·Arthritis Research & Therapy·Soo-Kyung ChoYoon-Kyoung Sung

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