Table 3.
Competing risk regression model, 30-year follow-up.
| Univariate | P-value | Multivariatea | P-value | |
|---|---|---|---|---|
| Normal ECG (N = 7963) | 1.0 | 1.0 | 1.0 | 1.0 |
| Any ECG abnormality (N = 1548, 16.3%) | 1.67 (1.39–2.00) | <0.001 | 1.30 (1.07–1.57) | 0.007 |
| QRS duration > 110 ms (N = 110, 1.2%) | 2.20 (1.30–3.72) | 0.003 | 1.57 (0.91–2.72) | 0.110 |
| QTc (N = 534, 5.6%) | 1.56 (1.18–2.07) | 0.002 | 1.06 (0.79–1.43) | 0.670 |
| QRS-T angle > 100° (N = 125, 1.3%) | 2.33 (1.45–3.77) | 0.001 | 1.79 (1.08–2.95) | 0.0230 |
| LVH (N = 395, 4.2%) | 2.01 (1.50–2.71) | <0.001 | 1.52 (1.12–2.05) | 0.007 |
| ER ≥ 0,1 mV (N = 351, 3.7%) | 1.81 (1.31–2.49) | <0.001 | 1.60 (1.15–2.21) | 0.005 |
| ER ≥ 2 mV (N = 40, 0,4%) | 3.29 (1.63–6.67) | 0.001 | 2.60 (1.28–5.29) | 0.009 |
| T-wave inversion (N = 284, 3,0%) | 1.41 (0.948–2.08) | 0.090 | 1.33 (0.88–2.02) | 0.170 |
a
Multivariate model included age, gender, systolic blood pressure, diabetes, BMI and cholesterol. ECG = electrocardiogram, ER = early repolarization, HR = hazard ratio, LVH = left ventricular hypertrophy, QTc = heart rate corrected QT interval. Adjusted for age, gender, systolic blood pressure, diabetes, BMI and cholesterol.