Demographic data and pressure values of Williams patients and controls
| Variable |
Williams patients (n=21) |
Controls (n=21) | p Value |
| Age (years) | 8.5 (4.0) | 9.0 (2.0) | NS |
| Weight (kg) | 31 (20) | 29 (9) | NS |
| BSA (m2) | 1.05 (0.5) | 0.97 (0.2) | NS |
| Systolic arterial pressure (mm Hg) | 125 (18) | 113 (10) | < 0.05 |
| Diastolic arterial pressure (mm Hg) | 66 (8) | 60 (9) | < 0.05 |
| Pulse pressure (mm Hg) | 59 (14) | 54 (7.3) | NS |
Values are mean (SD).
BSA, body surface area.