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Coefficient of determination (R2) between base apex and modified precordial lead system.
| Variables | Coefficient of determination (R2) | |
|---|---|---|
| Base apex | Modified precordial | |
| P (ms) | 0.0003 | 0.0408 |
| P (mV) | 0.0216 | 0.0016 |
| PR (ms) | 0.0192 | 0.0107 |
| QRS (ms) | 0.0263 | 0.2707 |
| R (mV) | 0.6691 | 0.1042 |
| QT (ms) | 0.6691 | 0.5059 |
