Table 1.
Comparison of Baseline Characteristics Between the Study and Background Population
| Resurveyed (n=339) | Total (n=15 350) | |
|---|---|---|
| Women, % | 50.4 | 50.0 |
| Age, y | 43.6 (14.0) | 41.4 (14.1) |
| Rural people, % | 63.4 | 68.7 |
| Middle school or higher, % | ||
| Primary school or lower | 41.4 | 33.5 |
| Middle school | 39.1 | 43.2 |
| High school | 13.0 | 15.5 |
| College or higher | 6.5 | 7.8 |
| Smoking, % | 26.6 | 26.7 |
| Alcohol intake, % | 35.5 | 39.5 |
| BMI, kg/m2 | 24.8 (3.7) | 24.4 (4.0) |
| Systolic BP, mm Hg | 124.4 (19.7) | 121.5 (18.6) |
| Diastolic BP, mm Hg | 79.9 (11.0) | 79.2 (11.7) |
| Hypertension, % | 21.2 | 23.7 |
| Diabetes mellitus, % | 5.6 | 2.8 |
Data of age, BMI, and BP are means (standard deviations). BMI indicates body mass index; and BP, blood pressure.