Table 5.
Coefficients of the reference equation for PWV. PPc and SBPc in obese children
| Variables | Coefficient | Standardized coefficient | CI 95% | p-value |
|---|---|---|---|---|
| PWV (R2 = 0.980) | ||||
| Constant | 1.017 | - | 0.887–1.148 | < 0.001 |
| SBPp (mmHg) | 0.030 | 0.944 | 0.029–0.031 | 0.006 |
| PPp (mmHg) | −0.004 | −0.088 | 0.887–1.148 | < 0.001 |
| PPc (mmHg) | 0.012 | 0.218 | 0.008–0.015 | < 0.001 |
| PPc (R2 = 0.873) | ||||
| Constant | −3.551 | −11.85–4.75 | 0.395 | |
| Augmentation pressure (mmHg) | 0.651 | 0.380 | 0.325–0.976 | 0.000 |
| PPp (mmHg) | 0.427 | 0.519 | 0.314–0.540 | 0.000 |
| Reflection coefficient | 0.185 | 0.268 | 0.076–0.294 | 0.001 |
| SBPc (R2 = 0.801) | ||||
| Constant | 4.389 | −28.590–37.368 | 0.790 | |
| Age (years) | 2.829 | 0.724 | 1.888–3.769 | 0.000 |
| AIx@75 (%) | 0.363 | 0.408 | 0.182–0.543 | 0.000 |
| Total vascular resistance (s*mmHg/ml) | 21.897 | 0.267 | 3.878–39.915 | 0.018 |
| Cardiac index (l/min/m2) | 6.243 | 0.485 | 2.485–10.001 | 0.002 |
| Body fat (%) | 0.224 | 0.333 | 0.077–0.370 | 0.004 |
PWV pulse wave velocity, SBPc central systolic blood pressure, PPp peripheral pulse pressure, PPc central pulse pressure, AIx@75 augmentation index normalized to heart rate of 75 bpm