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Table 3 Multivariate-adjusted score of EQ-5D index in adults aged over 50 years according to ageing

From: Factors associated with health-related quality of life in Koreans aged over 50 Years: the fourth and fifth Korea National Health and Nutrition Examination Survey

  50–59 years 60–69 years Over 70 years
Mean ± SE P-values Mean ± SE P-values Mean ± SE P-values
Gender
 Male 0.87 ± 0.04 0.927 0.85 ± 0.02 0.516 0.75 ± 0.05 0.758
 Female 0.87 ± 0.04 0.84 ± 0.02 0.75 ± 0.05
BMI
 Normal 0.89 ± 0.04 0.371 0.87 ± 0.02 0.000* 0.77 ± 0.05 0.223
 Low 0.84 ± 0.05 0.85 ± 0.04 0.73 ± 0.06
 Obesity 0.88 ± 0.04 0.82 ± 0.02 0.74 ± 0.05
Educational level
 Elementary 0.84 ± 0.04 0.000* 0.82 ± 0.02 0.002* 0.70 ± 0.05 0.001*
 Middle school 0.87 ± 0.04 0.84 ± 0.02 0.76 ± 0.05
 High school 0.87 ± 0.04 0.85 ± 0.02 0.75 ± 0.05
 College 0.89 ± 0.04 0.86 ± 0.03 0.79 ± 0.05
Household net income
 Low 0.84 ± 0.04 0.003* 0.82 ± 0.02 0.000* 0.73 ± 0.05 0.063
 Low to mid 0.87 ± 0.04 0.84 ± 0.02 0.74 ± 0.05
 Mid to high 0.88 ± 0.04 0.86 ± 0.02 0.74 ± 0.05
 High 0.88 ± 0.04 0.86 ± 0.02 0.78 ± 0.05
Residential area
 City 0.87 ± 0.04 0.368 0.85 ± 0.02 0.568 0.76 ± 0.05 0.030*
 Rural 0.87 ± 0.04 0.84 ± 0.02 0.73 ± 0.05
Current marital status
 Married 0.87 ± 0.04 0.931 0.86 ± 0.02 0.051 0.77 ± 0.05 0.031*
 Unmarried, Divorced, widow or widower 0.87 ± 0.04 0.83 ± 0.03 0.73 ± 0.05
Employed
 Yes 0.87 ± 0.04 0.636 0.86 ± 0.02 0.002* 0.77 ± 0.05 0.000*
 No 0.87 ± 0.04 0.83 ± 0.02 0.72 ± 0.05
Smoking
 No 0.87 ± 0.04 0.811 0.85 ± 0.02 0.793 0.75 ± 0.05 0.904
 Yes 0.87 ± 0.04 0.84 ± 0.03 0.75 ± 0.05
DM
 No 0.87 ± 0.04 0.589 0.85 ± 0.02 0.649 0.75 ± 0.05 0.612
 Yes 0.87 ± 0.04 0.84 ± 0.02 0.74 ± 0.05
HBP
 No 0.87 ± 0.04 0.800 0.84 ± 0.03 0.406 0.75 ± 0.05 0.933
 Yes 0.87 ± 0.04 0.85 ± 0.02 0.75 ± 0.05
CAD
 No 0.87 ± 0.04 0.89 0.85 ± 0.02 0.512 0.74 ± 0.05 0.421
 Yes 0.87 ± 0.04 0.84 ± 0.03 0.76 ± 0.05
Dyslipidaemia
 No 0.88 ± 0.04 0.023* 0.84 ± 0.02 0.096 0.75 ± 0.05 0.531
 Yes 0.86 ± 0.04 0.85 ± 0.02 0.74 ± 0.05
Stroke
 No 0.87 ± 0.04 0.984 0.86 ± 0.02 0.076 0.79 ± 0.05 0.024*
 Yes 0.87 ± 0.04 0.83 ± 0.03 0.70 ± 0.06
CRD
 No 0.89 ± 0.02 0.627 0.87 ± 0.02 0.264 0.80 ± 0.03 0.094
 Yes 0.85 ± 0.07 0.83 ± 0.04 0.70 ± 0.08
Arthritis
 No 0.90 ± 0.04 0.000* 0.88 ± 0.02 0.000* 0.79 ± 0.05 0.000*
 Yes 0.84 ± 0.04 0.81 ± 0.02 0.71 ± 0.05
Cancer
 No 0.87 ± 0.04 0.752 0.85 ± 0.02 0.259 0.76 ± 0.05 0.013*
 Yes 0.87 ± 0.04 0.84 ± 0.02 0.73 ± 0.05
Depression  
 No 0.89 ± 0.04 0.000* 0.87 ± 0.02 0.000* 0.78 ± 0.05 0.008*
 Yes 0.85 ± 0.04 0.82 ± 0.02 0.72 ± 0.05
 R2 0.228 0.232 0.197
  1. *P < 0.05
  2. DM: diabetes mellitus; HBP: hypertension; CAD: coronary artery disease (including myocardial infarction or angina pectoris); CRD: chronic renal disease