ECG parameters | HbAA | HbAS | HbSS | p-value |
Heart rate (beats/min) | 67.6 ± 9.1 | 66.6 ± 9.3 | 73.5 ± 10.1 | 0.016* |
QRS Axis (˚) | 49.6 ± 18.4 | 53.5 ± 14.9 | 39.5 ± 22.4 | 0.017* |
PR Interval(s) | 0.19 ± 0.03 | 0.19 ± 0.04 | 0.20 ± 0.03 | 0.532 |
Tp-e Interval (ms) | 80.0 ± 15 | 77.3 ± 14 | 83.0 ± 15 | 0.362 |
QTc | 0.38 ± 0.03 | 0.37 ± 0.05 | 0.39 ± 0.08 | 0.764 |
Tp-e/QTc | 0.211 ± 0.05 | 0.215 ± 0.05 | 0.230 ± 0.06 | 0.518 |
SV1 + RV5 (mm) | 33.5 ± 12 | 26.8 ± 10 | 34.9 ± 11 | 0.018* |