Table 1.
Data from Multivariable Analysis of Regression Model for Prediction of QRS Duration by Independent Variables
| Independent Variables | Coefficient | Std. Error | t | P |
|---|---|---|---|---|
| Constant | 96.9024 | |||
| LVL a | 0.3596 | 0.09919 | 3.626 | 0.0006 |
| PMA b | −0.4469 | 0.08699 | −5.137 | <0.0001 |
| LVM c | NS |
aLVL= length of the left ventricle; bPMA= angle between the papillary muscles; cLVM= left ventricular mass.