Table 4.
Risk of SCD associated with the ECG risk score in the subgroup of patients with LVEF >35% (n = 476)
| Number of abnormal ECG markers | Cases (n = 192) | Controls (n = 284) | Odds ratio (95% CI)a | P-value |
|---|---|---|---|---|
| 0 | 17 | 95 | Reference | — |
| 1 | 43 | 100 | 2.3 (1.2–4.4) | 0.008 |
| 2 | 50 | 59 | 4.5 (2.4–8.5) | <0.001 |
| 3 | 46 | 23 | 10.4 (5.1–21.5) | <0.001 |
| ≥4 | 36 | 7 | 26.1 (9.9–68.5) | <0.001 |
ECG parameters included in the model were heart rate >75bpm, LVH, delayed QRS transition, QRS-T angle >90°, prolonged QTc and prolonged TpTe.
LVH, left ventricular hypertrophy; CI, confidence interval; ECG, electrocardiogram.
a
Models adjusted for age, sex, diabetes, and hypertension.