Table 6.
Predictive Factors of VF Event
| Factor | Univariate Analysis | Multivariate Analysis | ||||
|---|---|---|---|---|---|---|
| HR | 95% CI | P Value | HR | 95% CI | P Value | |
| Male/female ratio | 0.814 | 0.169‐14.634 | 0.846 | 1.112 | 0.163‐22.197 | 0.926 |
| Age | 0.992 | 0.965‐1.020 | 0.606 | 0.999 | 0.960‐1.044 | 0.990 |
| History of syncope | 1.792 | 0.831‐3.745 | 0.133 | 14.764 | 2.565‐284.447 | 0.014 |
| History of VF | 5.329 | 2.460‐11.636 | <0.001 | 29.607 | 4.616‐610.847 | 0.003 |
| FH of SCD | 0.980 | 0.327‐2.400 | 0.968 | … | … | … |
| SCN5A mutation | 2.482 | 0.987‐5.823 | 0.053 | 2.006 | 0.734‐5.183 | 0.157 |
| Induced VF in PES | 0.735 | 0.239‐1.886 | 0.541 | … | … | … |
| ER pattern | 1.742 | 0.511‐4.530 | 0.338 | 3.918 | 0.556‐17.389 | 0.102 |
| CRBBB | 1.793 | 0.661‐4.148 | 0.231 | 1.738 | 0.315‐8.201 | 0.493 |
| fQRS | 2.461 | 1.147‐5.171 | 0.021 | 0.846 | 0.240‐2.703 | 0.784 |
| Prominent S in lead I | 1.676 | 0.777‐3.899 | 0.191 | 0.588 | 0.198‐1.729 | 0.329 |
| No. of type 1 ECGs | 1.101 | 0.932‐1.301 | 0.254 | … | … | … |
| Minimum late R′+S wave of ≤0.8 mV | 4.808 | 2.202‐11.591 | <0.001 | 4.154 | 1.413‐13.730 | 0.013 |
CI indicates confidence interval; CRBBB, complete right bundle branch block; ER, early repolarization; FH, family history; fQRS, fragmented QRS; HR, hazard ratio; No. of type 1 ECGs, the number of ECG leads showing type 1 morphological features among 9 right precordial leads; PES, programmed electrical stimulation; SCD, sudden cardiac death; VF, ventricular fibrillation.