Factors influencing Health-related Quality of Life in Older Adults with Osteoarthritis: Based on the 2010-2011 Korea National Health and Nutrition Examination Survey

Purpose: This study was conducted to identify factors that influence health-related quality of life in older adults with osteoarthritis. Methods: This study used a cross-sectional design with secondary analysis of the Korean National Health and Nutrition Examination Survey 2011. A total of 362 participants aged 65 years and older who had osteoarthritis were selected. Health-related quality of life using EQ-5D, perceived health status, body mass index, numbers of chronic illness, smoking and alcohol use, exercise, activity limitation, joint pain and stiffness, depression, and perceived stress were measured. Descriptive statistics, x2-test, t-test, ANOVA, Pearson’s correlation coefficients, and multiple regression were conducted with SPSS/WIN 21.0. Results: The mean score of EQ-5D was 0.77 in older adults with osteoarthritis. The results of multiple regression analysis showed that age, income, subjective health status, restriction of activity, knee joint stiffness, depressive mood, and perceived stress significantly predicted health-related quality of life in older adults with osteoarthritis, explaining 42 % of the variance. Conclusion: Older adults with osteoarthritis have low health-related quality of life. In oder to improve health-related quality of life in older adults with osteoarthritis, it is important not only to enhance physical functio