TABLE 1.
Demographic and clinical characteristics of the PONS participants
| N=11,308 | |
|---|---|
| Age (years) | 55.6 (5.4) |
| Men, N (%) | 3,663 (32.4) |
| Smoking, current, N (%) | 2,216 (19.6) |
| Systolic blood pressure (mm Hg) | 137.6 (19.2) |
| Diastolic blood pressure (mm Hg) | 82.2 (10.6) |
| Total cholesterol (mg/dL) | 210.1 (38.5) |
| LDL cholesterol (mg/dL) | 127.2 (33.9) |
| HDL cholesterol (mg/dL) | 59.1 (14.6) |
| Metabolic syndrome, N (%) | 4,382 (38.8) |
| Hypertension, N (%) | 4,390 (38.8) |
| Diabetes, N (%) | 687 (6.1) |
| Total cardiovascular diseases, N (%) | 1,528 (13.5) |
| Obesity measures | |
| BMI (kg/m2) | 28.2 (4.7) |
| BMI ≤24.9 | 2,916 (25.8) |
| BMI 25–29.9 | 4,935 (43.6) |
| BMI ≥30 | 3,457 (30.6) |
| Waist circumference (cm) | 91.8 (12.5) |
| Increased waist circumference, N (%) | 5,147 (45.5) |
| Waist-hip ratio | 0.89 (0.1) |
| ECG measures | |
| P-wave duration (ms) | 106.7 (16.3) |
| PR interval duration (ms) | 156.3 (24.3) |
| Heart rate (bpm) | 67 (10) |
| QRS duration (ms) | 92.7 (9.4) |
| QT interval duration (ms) | 418.7 (30.8) |
| Left axis deviation, N (%) | 695 (6.1) |
| LVH, N (%) | 379 (3.4) |
| Intraventricular conduction defects, N (%) | |
| QRS ≥120 ms | 88 (0.8) |
| Right bundle branch block (complete and incomplete) | 1,590 (14.1) |
| Left bundle branch block | 10 (0.1) |
| Pathological Q wave, N (%) | 772 (6.8) |
| T-wave inversion, N (%) | 572 (5.1) |
Values are means (SD) except as noted.
LDL, low-density lipoprotein; HDL, high-density lipoprotein; BMI, body mass index; ECG, electrocardiogram; LVH, left ventricular hypertrophy.