Table 2.
Linear Mixed Effects Multivariable Models
| Electrogram Parameters
|
||||||||
|---|---|---|---|---|---|---|---|---|
| Bipolar Voltage (mV) | Unipolar Voltage (mV) | Duration (msec) | Deflections (number) | |||||
|
|
||||||||
| B | P | B | P | B | P | B | P | |
| Left Ventricular Wall thickness (mm) | 0.327 | <0.001* | 0.507 | <0.001* | −1.542 | <0.001* | −0.211 | <0.001* |
| Scar Transmurality (%) | −0.015 | 0.027* | −0.025 | 0.005* | 0.594 | <0.001* | 0.630 | <0.001* |
| Endocardial Scar | −1.980 | <0.001* | −1.576 | 0.002* | 10.257 | 0.006* | 2.183 | <0.001* |
| Mid Wall Scar | −2.173 | <0.001* | −3.040 | <0.001* | 27.490 | <0.001* | 2.319 | <0.001* |
| Epicardial Scar | −2.041 | <0.001* | −3.944 | <0.001* | 8.453 | 0.069 | 1.012 | 0.069* |
| Patchy Scar | −1.297 | 0.002* | −1.941 | 0.001* | 5.857 | 0.15 | 1.544 | 0.002* |
| Rhythm During Mapping (Sinus/Atrial Pace, Ventricular Pace, VT) | 0.667 | 0.001* | 1.284 | <0.001* | −0.623 | 0.77 | 0.150 | 0.52 |
| Gender (Male, Female) | −0.528 | 0.24 | 0.672 | 0.56 | 12.870 | 0.088 | 0.270 | 0.66 |
| Age (years) | −0.060 | <0.001* | −0.132 | 0.002* | 0.443 | 0.11 | 0.028 | 0.18 |
| Left Ventricular Ejection Fraction (%) | 0.023 | 0.048* | 0.164 | <0.001* | 0.213 | 0.30 | −0.043 | 0.007* |
| SD of Patient Random Effects | 0.222 | 1.025 | 6.626 | 0.410 | ||||
| SD of Population Residuals | 2.642 | 3.498 | 23.111 | 2.731 | ||||
Significant regression coefficients and P-values defined as P<0.05 are shown by asterisks (*). B=regression coefficients; P=P-value; SD=standard deviation. See abbreviations in Table 1.