Elevated C-reactive protein level, obesity, and quality of life

To investigate the association between serum C-reactive protein level and health-related quality of life, and to assess the relationship between the two in terms of controlling for obesity and other covariates. The cross-sectional study was conducted retrospectively at university hospital in Yangsan from January to December 2017 using the nationally representative 2015 Korea National Health and Nutrition Examination Survey (KNHANES). High C-reactive protein was defined as level ≥1.0mg/L. Health-related quality of life was assessed using the Euro-Quality of Life-5 dimensions tool. The association between high C-reactive protein and health-related quality of life was analysed using logistic regression analysis and was adjusted for variables. The subjects were categorised into four groups according to the level of C-reactive protein, and the presence of obesity was analysed. Of the 3376 subjects, 1,413(42%) were men and 1,963(58%) were women. C-reactive protein level was