Table 2:
ECG Findings
| Variable | Cohort 1 (Sensitive) n=16,250 |
|---|---|
| ECG Findings | |
| Heart rate mean ±SD bpm | 76.3±19.6 |
| PR interval mean ±SD ms | 157±32 |
| QRS duration mean ±SD ms | 89.4±11.9 |
| QTc mean ±SD ms | 428.5±27.7 |
| Primary Prolonged QT, n (%) | 223 (1.4) |
| ECG Abnormalities* | |
| Paced rhythm, n (%) | 291 (1.6) |
| LBBB, n (%) | 255 (1.4) |
| Bifascicular block, n (%) | 146 (0.8) |
| RBBB, n (%) | 592 (3.2) |
| Atrial fibrillation, n (%) | 496 (2.7) |
| Atrial flutter, n (%) | 105 (0.6) |
| LVH, n (%) | 423 (2.3) |
*
ECG Abnormalities were considered exclusion criteria; therefore, these patients were not included in QTc analysis.
LBBB, left bundle branch block; LVH, left ventricular hypertrophy; RBBB, complete right bundle branch block