Table.
Morphology correlation of the prone ECG
| QRS morphology correlation, mean (SD) | QT morphology correlation, mean (SD) | |
|---|---|---|
| 12-lead ECG | 0.59 (0.09) | 0.57 (0.10) |
| Limb leads | 0.89 (0.11)∗ | 0.86 (0.10)∗ |
| Precordial leads | 0.30 (0.19) | 0.28 (0.18) |
| V1-V3 | -0.28 (0.31) | -0.30 (0.30) |
| V4-V6 | 0.87 (0.10)† | 0.86 (0.10)† |
| ECG (excluding V1-V3) | 0.88 (0.08)†† | 0.86 (0.08)†† |
| Lead II | 0.95 (0.06) | 0.92 (0.09) |
| Lead V6 | 0.97 (0.02) | 0.96 (0.03) |
ECG = electrocardiogram.
A significant P value (<.05) is denoted as
∗
for the comparison of limb leads vs precordial leads
†
for V4-V6 vs V1-V3, and
††
for ECG (excluding V1-V3) vs 12-lead ECG in each respective column.