Table 1.
Characteristics of the participants (N = 5207, 2621 boys and 2586 girls)
| Characteristics | Mean | SD | Min | Max |
|---|---|---|---|---|
| Age (y) | 12.3 | 0.5 | 10.1 | 14.9 |
| Weight (kg) | 44.3 | 9.4 | 18.2 | 106.0 |
| Height (cm) | 153.5 | 7.6 | 127.0 | 183.2 |
| Systolic R1 (mm Hg) | 116.3 | 10.9 | 76.0 | 164.0 |
| Systolic R2 (mm Hg) | 113.4 | 10.3 | 72.0 | 161.0 |
| Systolic R3 (mm Hg) | 112.3 | 10.1 | 71.0 | 163.0 |
| Systolic (R1 + R2)/2 (mm Hg) | 114.9 | 10.2 | 81.5 | 161.0 |
| Systolic (R2 + R3)/2 (mm Hg) | 112.9 | 9.9 | 72.0 | 160.5 |
| Systolic (R1 + R2 + R3)/3 (mm Hg) | 114.0 | 9.9 | 81.3 | 161.7 |
| Diastolic R1 (mm Hg) | 67.4 | 7.7 | 39.0 | 139.0 |
| Diastolic R2 (mm Hg) | 66.0 | 7.6 | 39.0 | 136.0 |
| Diastolic R3 (mm Hg) | 65.6 | 7.5 | 30.0 | 120.0 |
| Diastolic (R1 + R2)/2 (mm Hg) | 66.7 | 7.1 | 42.0 | 109.0 |
| Diastolic (R2 + R3)/2 (mm Hg) | 65.8 | 7.1 | 37.0 | 102.0 |
| Diastolic (R1 + R2 + R3)/3 (mm Hg) | 66.3 | 6.9 | 39.0 | 96.7 |
Mean blood pressure (BP) level at the initial visit, with standard deviation (SD), minimum (Min), and maximum (Max), are reported using the 1st (R1), the 2nd (R2), and the 3rd (R3) readings or average of different set of readings.