Table 2.
Univariate of multiple factors correlated with QTc prolongation.
| Variable | Correlation | p-value |
|---|---|---|
| Age at admit | 0.20 | <0.0001 |
| Overall Cardiac Involvement | 0.26 | <0.0001 |
| Elevated Troponin | 0.24 | <0.0001 |
| Creatinine | 0.20 | <0.0001 |
| History of LBBB | 0.18 | <0.0001 |
| History of RBBB | 0.18 | <0.0001 |
| History of Atrial fibrillation | 0.18 | <0.0001 |
| History of Atrial flutter | 0.13 | 0.0011 |
| History of PVC | 0.12 | 0.0028 |
| History of Ventricular Tachycardia | 0.09 | 0.0198 |
| Potassium level | −0.08 | 0.0534 |
| Calcium level | −0.09 | 0.0228 |
| History of outpatient QT prolonging medications | 0.08 | 0.0319 |
| Hypertension | 0.13 | 0.0005 |
| Stroke | 0.17 | <0.0001 |
| History of cardiac disease | 0.14 | 0.0002 |
| Previous MI | 0.14 | 0.0003 |
| History of CAD | 0.18 | <0.0001 |
| History of Congestive Heart Failure | 0.29 | <0.0001 |
Abbreviations: LBBB = Left bundle branch block; RBBB = Right bundle branch block; PVC = Premature ventricular contraction; CAD = Coronary artery disease.