Table 2.
TCRT and LF/HF and risk for all‐cause mortality and major cardiac events from Univariate Cox Regression Analysis
| Mortality | Major cardiac events | |||
|---|---|---|---|---|
| ECG Variable | Relative risk (95% CI) | p value | Relative risk (95% CI) | p value |
| TCRT (median)a | 7.68 (1.74–33.85) | 0.007 | 7.91 (0.97–64.45) | 0.053 |
| TCRT (100°)b | 4.60 (1.68–12.70) | 0.003 | 9.02 (1.80–45.02) | 0.007 |
| LF/HFc | 0.110 (0.025–0.786) | 0.004 | 0.255 (0.051–1.265) | 0.94 |
| TMD | N/A | 7.84 (0.96–63.78) | 0.54 | |
CI: Confidence Interval; ECG: Electrocardiogram; HF: high frequency component (0.15 Hz to 0.40 Hz) of Heart Rate Variability (HRV) in absolute values; LF: low frequency component (0.04 Hz to 0.15 Hz) of HRV in absolute values; LF/HF: ratio between LF and HF; TCRT: Total Cosine of R to T; TMD: T‐wave morphology dispersion. Shaded areas highlight statistically significant differences.
a
TCRT dichotomized at median value.
b
TCRT dichotomized at 100°.
c
LF/HF dichotomized at median value.