Table 2.
Cox proportional hazards analyses for prediction of sustained VA
| Mechanical LV dysfunction | Overt LV dysfunction | |||
|---|---|---|---|---|
| Hazard ratio (95% CI) | P-value | Hazard ratio (95% CI) | P-value | |
| Univariable (n = 243) | 26.19 (3.38–202.87) | 0.002a | 114.36 (15.43–847.66) | <0.001a |
| Adjusted for age and sex (n = 243) | 29.30 (3.64–235.69) | 0.001a | 132.63 (17.25–1019.75) | <0.001a |
| Adjusted for VA history (n = 243) | 20.48 (2.57–162.84) | 0.004a | 78.31 (10.0–613.47) | <0.001a |
| Adjusted for low QRS voltages and T-wave inversion (n = 238) | 13.79 (1.75–108.54) | 0.013a | 47.89 (6.17–371.84) | <0.001a |
| Adjusted for PVC count/24 h, log-linear conversion (n = 198) | 12.97 (1.50–112.62) | 0.020a | 42.20 (4.76–373.97) | 0.001a |
The LV function classes were included in the Cox proportional hazards analysis as dummy variable, with the normal LV function class as reference group. Due to non-linearity, a log-linear conversion was performed for PVC count.
CI, confidence interval; LV, left ventricular; PVC, premature ventricular complex; VA, ventricular arrhythmia.
a
P-values <0.05 are considered to indicate statistical significance.