Table 2.
Association of Fragmented QRS with Clinical and Echocardiographic Characteristics
| Univariable | Multivariable | |||
|---|---|---|---|---|
| Variables | OR (95% CI) | P Value | OR (95% CI) | P Value |
| LVEF | 0.898 (0.800–1.008) | 0.067 | ‐ | |
| Septum | 1.162 (0.945–1.429) | 0.156 | ‐ | |
| Posterior wall | 1.142 (0.889–1.468) | 0.299 | ‐ | |
| Left atrium | 1.142 (1.053–1.238) | 0.001 | ‐ | |
| Mean gradient | 1.095 (1.040–1.153) | 0.001 | ‐ a | |
| Peak gradient | 1.083 (1.040–1.127) | <0.001 | 1.123 (1.057–1.192) | <0.001 |
| sPAP | 1.069 (1.020–1.121) | 0.005 | 1.101 (1.017–1.193) | 0.018 |
| QRS duration | 1.059 (1.007–1.113) | 0.027 | ‐ | |
| Intrinsic deflection | 1.121 (1.038–1.210) | 0.003 | 1.222 (1.085–1.377) | 0.001 |
| Romhilt‐Estes score | 1.672 (1.325–2.109) | <0.001 | ‐ | |
| Cornell voltage | 4.906 (1.958–12.296) | 0.001 | 4.964 (1.106–22.277) | 0.036 |
| Strain pattern | 4.529 (1.650–12.431) | 0.003 | 5.536 (1.111–27.592) | 0.037 |
| Left axis deviation | 1.818 (0.712–4.645) | 0.212 | ||
| Hypertension | 1.842 (0.750–4.518) | 0.183 | ‐ | |
| Diabetes mellitus | 0.733 (0.293–1.837) | 0.508 | ‐ | |
| Heart failure | 7.583 (1.672–34.391) | 0.009 | 1.876 (1.010–4.983) | 0.042 |
| Atrial fibrillation | 2.222 (0.685–7.205) | 0.183 | ‐ | |
HR = hazard ratio; CI = confidence interval; LVEF = left ventricular ejection fraction; sPAP = systolic pulmonary artery pressure.
a
Not included in multivariable analyze in order to prevent multicollinearity.