Predictors of Health-Related Quality of Life in Korean Adults with Diabetes Mellitus.

Diabetes mellitus (DM) as a chronic disease is a major public health problem worldwide. It is important to improve the quality of life of people with DM, especially health-related aspects, which should be monitored and managed as part of diabetes management. Accordingly, this study investigated health-related quality of life (HRQoL) and identified predictors of HRQoL in Korean adults with DM using the Seventh Korea National Health and Nutrition Examination Survey (KNHANES VII) 2016-2018. This was a cross-sectional study with a stratified multistage probability sampling design that collected data from 1228 participants aged 30-80 years diagnosed with DM. HRQoL was measured using the Euro Quality of Life Five Dimension (EQ-5D) questionnaire. Analyses consisted of one-way analysis of variance, -tests, chi-squared tests, and general linear regression analyses with complex sampling designs. Results demonstrated that low HRQoL was associated with older age ( = -0.002, 95% CI: -0.003 to -0.001), having elementary school education or less ( = -0.037, 95% CI: -0.061 to -0.014), being unmarried ( = -0.060, 95% CI: -0.078 to -0.040), poor subjective health status ( = -0.074, 95% CI: -0.094 to -0.055), perceived high stress ( = -0.047, 95% CI: -0.066 to -0.028), limited activity ( = -0.105, 95% CI: -0.131 to -0.079), being overweight ( = -0.021, 95% CI: -0.038 to -0.002), or obese ( = -0.016, 95% CI: -0.032 to -0.001), and three or more comorbidities ( = -0.044, 95% CI: -0.085 to -0.001). Comprehensive health care programs to manage these predictors should be provided to improve health-related quality of life of patients with DM.