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

@entity1 @entity626 @entity28
AIM: Although there have been regional population-based studies on the prevalence of @entity626 ( @entity626 ) and its risk factors in South Koreans, those studies in common had limited external validity. This study aims to estimate the national prevalence of @entity626 and its risk factors using a complex sampling design. METHODS: This was a cross-sectional study including 9512 @entity1 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 @entity626 (RKOA) was defined as a Kellgren-Lawrence grade of >=  2. Symptoms of @entity626 were evaluated through a health interview. Obesity was defined as a body mass index >=  27.5 kg/m(2) . Quality of life was measured by the Korean version of European Quality of Life Questionnaire (EQ-5D). RESULTS: The prevalence of RKOA was 21.1% (95% CI: 19.6-22.8%) in @entity1 , and 43.8% (42.0-45.6%) in @entity1 . The prevalence of symptomatic RKOA (SRKOA) was 4.4% (3.8-5.2%) and 19.2% (17.9-20.6%) in @entity1 and @entity1 , respectively. The EQ-5D index was lower in @entity1 with @entity626 . When plotted against mean age and prevalence of @entity28 , regions with a higher mean age and prevalence of @entity28 had higher prevalence of @entity626 , which was also observed at the individual level. The prevalence of SRKOA was 36.6% (29.7-44.1%) in @entity1 in Jeju province. CONCLUSION: The prevalence of SRKOA in @entity1 reached 36.6% in high-risk groups accompanied by low quality of life. The results suggest that the disease burden of @entity626 is high in South Korea.
