Table 4

One way analysis of variance: summary of QTd (ms)

Ventricular arrhythmiasMean (SD)FProb > F
None60 (24.19)2.820.0466
Minor72.85 (40.56)
nsVT100 (62.85)
sVT or VF103.33 (30.11)4-150
Total112.08 (39.47)
  • 4-150 p for the difference with no arrhythmias = 0.1.

  • QTd, QT dispersion; VF, ventricular fibrillation; nsVT, non-sustained ventricular tachycardia; Prob, probability; sVT, sustained ventricular tachycardia.