Table 1. Participant characteristics.
| Characteristic | Normal weight or obesity not requiring medication (n=15,645) | Obesity requiring medication (n=1,840) | p-value* |
|---|---|---|---|
| Age (yr) | 50.1±16.1 | 48.9±14.6 | 0.001 |
| Height (cm) | 169.5±6.7 | 169.9±6.8 | 0.005 |
| Weight (kg) | 67.4±9.3 | 85.4±10.5 | <0.001 |
| Waist circumference (cm) | 83.0±7.7 | 97.5±6.8 | <0.001 |
| Body mass index (kg/m2) | 23.4±2.6 | 29.5±2.3 | <0.001 |
| Place of residence | 0.026 | ||
| Urban (dong) | 76.5 | 78.9 | |
| Rural (eup/myeon) | 23.5 | 21.1 | |
| Household income | 0.003 | ||
| First quartile (very low) | 17.8 | 14.3 | |
| Second quartile (low) | 25.2 | 26.0 | |
| Third quartile (high) | 28.2 | 28.7 | |
| Fourth quartile (very high) | 28.8 | 31.0 | |
| Occupation | <0.001 | ||
| Non-manual | 37.3 | 43.9 | |
| Manual | 37.8 | 34.0 | |
| Unemployed | 24.9 | 22.1 | |
| Cohabitation | 93.7 | 94.8 | 0.122 |
| Education | <0.001 | ||
| Elementary school | 18.4 | 14.2 | |
| Middle school | 12.0 | 12.6 | |
| High school | 35.5 | 36.4 | |
| College | 34.1 | 36.8 | |
| Hypertension | 30.5 | 70.7 | <0.001 |
| Diabetes | 10.9 | 24.5 | <0.001 |
| Hypercholesterolemia | 9.9 | 25.0 | <0.001 |
Values are presented as mean±standard deviation or percent only. *t-test or chi-square test.