Table 1. Summary statistics and a comparison of characteristics between genders (mean ± s.d.).
| Characteristic | Total (n = 1870) | Male (n = 600) | Female(n = 1270) | P |
| Age (year) | 64.55±9.49 | 64.76±9.09 | 64.45±9.67 | 0.494 |
| Height (cm) | 160.96±8.12 | 169.10±5.88 | 157.11±5.88 | <0.001 |
| Weight (kg) | 65.97±10.92 | 72.35±10.23 | 62.96±9.89 | <0.001 |
| BMI | 25.43±3.56 | 25.27±3.13 | 25.50±3.74 | 0.174 |
| WC (cm) | 88.72±10.13 | 91.34±9.30 | 87.48±10.27 | <0.001 |
| SBP (mmHg) | 135.04±19.66 | 135.58±19.08 | 134.78±19.93 | 0.410 |
| DBP (mmHg) | 83.44±11.44 | 85.09±11.46 | 82.66±11.36 | <0.001 |
| General obesity, n (%) | 395 (21.1) | 102 (17.0) | 293 (23.1) | 0.003 |
| Central obesity, n (%) | 1467 (78.4) | 467 (77.8) | 1000 (78.7) | 0.673 |
| Hypertension, n (%) | 1149 (61.4) | 400 (66.7) | 749 (59.0) | 0.001 |
| Smoking, n (%) | 284 (15.2) | 236 (39.3) | 48 (3.8) | <0.001 |
| Alcohol drinking (%) | 216 (11.6) | 190 (31.7) | 26 (2.0) | <0.001 |
| Educational attainment* | ||||
| Uneducated (%) | 247 (13.3) | 16 (2.7) | 231 (18.3) | <0.001 |
| Grade school (%) | 348 (18.7) | 83 (13.9) | 265 (20.9) | <0.001 |
| Junior high school (%) | 469 (25.2) | 153 (25.7) | 316 (25.0) | 0.749 |
| Senior high school (%) | 629 (33.8) | 239 (40.1) | 390 (30.8) | <0.001 |
| Junior college and above (%) | 168(9.0) | 105(17.6) | 63 (5.0) | <0.001 |
BMI, body mass index; WC, waist circumference; SBP, systemic blood pressure; DBP, diastolic blood pressure.
*There were four missing values for men and five missing values for women for educational attainment.