Table 1.
General characteristics of the study population.
| Variables | Total (n = 11517) | Male (n = 4087) | Female (n = 7430) | P |
|---|---|---|---|---|
| Age (years old), mean (SD) | 55.1 (11.0) | 56.4 (11.2) | 54.4 (10.8) | <0.001 |
| Current smoking (%) | 2336 (20.3) | 2039 (49.9) | 297 (4.0) | <0.001 |
| Current drinking (%) | 1834 (15.9) | 1556 (38.1) | 278 (3.7) | <0.001 |
| Below high school education degree (%) | 8809 (76.5) | 2765 (67.7) | 6044 (81.4) | <0.001 |
| Personal monthly income (<2000 yuan) (%) | 9372 (81.4) | 3128 (76.5) | 6244 (84.0) | <0.001 |
| Physical exercise (%) | 6802 (59.1) | 2339 (57.2) | 4463 (60.1) | 0.012 |
| Family history of hypertension (%) | 2444 (21.2) | 866 (21.2) | 1578 (21.2) | 0.998 |
| BMI (kg/m2), mean (SD) | 24.1 (6.8) | 23.8 (6.3) | 24.2(7.0) | <0.001 |
| WC (cm), mean (SD) | 81.7 (26.4) | 83.5 (28.8) | 80.8 (24.9) | <0.001 |
| SBP (mmHg), mean (SD) | 130.9 (21.4) | 132.7 (20.4) | 129.9 (21.9) | <0.001 |
| DBP (mmHg), mean (SD) | 81.2 (21.2) | 82.3 (17.1) | 80.6 (23.1) | <0.001 |
| Pulse rate (beats/min), mean (SD) | 80.0 (25.1) | 79.1 (26.7) | 80.6 (24.1) | <0.001 |
| TC (mmol/L), mean (SD) | 4.6 (0.9) | 4.5 (0.9) | 4.7 (0.9) | <0.001 |
| TG (mmol/L), mean (SD) | 1.6 (1.3) | 1.6(1.2) | 1.6 (1.3) | 0.217 |
| FPG (mmol/l), mean (SD) | 5.7 (2.0) | 5.7 (1.9) | 5.7 (2.1) | 0.709 |