Final ordinal logistic analysis model
| Grade of VA (0 to 3) | Coefficient | SE | z | P > (z) | (95% CI) |
|---|---|---|---|---|---|
| EDVRV | 0.0223661 | 0.0071407 | 3.132 | 0.002 | 0.0083706 to 0.0363616 |
| QTd | 0.0145115 | 0.006312 | 2.299 | 0.022 | 0.0021402 to 0.0268829 |
Number of observations = 66; log likelihood = −60.048872; probability > χ2 = 0.0002; pseudo R2 = 0.1223.
Grade of ventricular arrhythmias (VA): 0 = none, 1 = minor, 2 = non-sustained ventricular tachycardia, 3 = sustained ventricular tachycardia or ventricular fibrillation.
CI, confidence intervals; EDVRV, end diastolic volume of right ventricle; QTd, QT dispersion; SE, standard error.