QT dispersion (QTD) and change of QTD during excercise in patients with CAD and healthy controls
| Controls (n = 40) | CAD patients (n = 58) | p value | |
|---|---|---|---|
| Rest | |||
| RR interval | 852 (72) | 870 (42) | 0.08 |
| QTD | 33 (8) | 52 (7) | 0.001 |
| Excercise | |||
| RR interval | 430 (65) | 438 (52) | 0.4 |
| QTD | 32 (10) | 73 (16) | 0.001 |
| Change in QTD (%) | 2.9 (2) | 40 (5) | 0.001 |
Values are mean (SD).