Table 1.
Characteristics of study participants
| Characteristics | Survey-1 (Nanjing) | Survey-2 (Hefei) | Pooled data |
|---|---|---|---|
| Participants, n | 5824 | 20,269 | 26,093 |
| Age, years | 52.0 (43.0 to 59.0) | 51.0 (43.0 to 58.0) | 51.0 (43.0 to 58.0) |
| Women, n (%) | 3278 (56.3) | 11,905 (58.7) | 15,183 (58.2) |
| Current smoking, n (%) | 1571 (28.0) | 4687 (23.3) | 6258 (24.0) |
| Hypertension, n (%) | 2259 (38.8) | 9228 (45.5) | 11,487 (44.0) |
| Type 2 diabetes, n (%) | 472 (8.1) | 1832 (9.0) | 2304 (8.8) |
| Body mass index, kg/m2 | 23.6 (21.4 to 26.1) | 24.1 (21.8 to 26.5) | 24.0 (22.1 to 26.8) |
| Waist circumference, cm | 80.0 (73.3 to 87.0) | 81.6 (74.3 to 88.7) | 81.3 (74.0 to 88.4) |
| Systolic blood pressure, mmHg | 128 (116 to 143) | 132 (120 to 148) | 131 (119 to 147) |
| Diastolic blood pressure, mmHg | 80.5 (73.5 to 88.5) | 82.5 (75.0 to 90.5) | 82.0 (75.0 to 90.0) |
| Fasting glucose, mmol/L | 5.4 (4.9 to 5.9) | 5.3 (4.8 to 5.2) | 5.3 (4.8 to 5.8) |
| Triglyceride, mmol/L | 1.2 (0.8 to 1.7) | 1.3 (0.9 to 1.8) | 1.2 (0.9 to 1.8) |
| Total cholesterol, mmol/L | 4.4 (3.9 to 4.9) | 4.6 (4.0 to 5.2) | 4.5 (4.0 to 5.1) |
| High density lipoprotein cholesterol, mmol/L | 1.3 (1.1 to 1.5) | 1.3 (1.1 to 1.5) | 1.3 (1.1 to 1.5) |
| Low density lipoprotein cholesterol, mmol/L | 2.4 (2.0 to 2.9) | 2.6 (2.2 to 3.1) | 2.5 (2.1 to 3.0) |
| Dyslipidaemia, n (%) | 2583 (44.4) | 10,463 (51.6) | 13,046 (50.0) |
| Overweight, n (%) | 2341 (40.2) | 9187 (45.3) | 11,528 (44.2) |
| Having ≥1 CVD modifiable risk factor, n (%) | 4692 (80.6) | 17,118 (84.5) | 21,810 (83.6) |
| Having ≥2 CVD modifiable risk factors, n (%) | 2914 (50.0) | 11,421 (56.4) | 14,335 (54.9) |
| Having ≥3 CVD modifiable risk factors, n (%) | 1275 (21.9) | 5422 (26.8) | 6697 (25.7) |
Continuous variables were presented as median (interquartile range); categorical variables were presented as number (percentage)