Health-related quality of life in coronary heart disease in Korea: the Korea National Health and Nutrition Examination Survey 2007 to 2011.

Using data from 2007 to 2011 of the Korea National Health and Nutrition Examination Survey, we evaluated the influence of coronary heart disease (CHD) on health-related quality of life (HRQoL) as measured by the EQ-5D in comparison with the general population and the predictors of HRQoL in CHD. Compared with the general population, HRQoL was impaired in the EQ-5D dimensions of mobility, usual activities, pain/discomfort, and anxiety/depression. The impairment of HRQoL was much greater in the older age group and in females. In subjects with CHD, the predictors for a low EQ-5D index were old age, female sex, low education, stroke, and noncardiovascular comorbidities, and the predictors for a low EQ Visual Analogue Scale were low income and noncardiovascular comorbidities. For the improvement in HRQoL, preventing stroke and noncardiovascular comorbidities is important, especially among female and older Asian patients with CHD.