Table 2.
A logistic regression model for detecting left ventricular systolic dysfunction
| Units | Coefficient (absolute) | Coefficient (normalized) | P-value | Independent AUC | |
|---|---|---|---|---|---|
| aVR T amplitude | µV | 3.69E−3 (3.35E−3 to 4.04E−3) | 0.52 (0.47–0.57) | 7.22E−96 | 0.77 (0.75–0.78) |
| V3 QRS duration | ms | 2.03E−2 (1.82E−2 to 2.23E−2) | 0.51 (0.45–0.56) | 2.56E−81 | 0.75 (0.73–0.76) |
| Heart rate | b.p.m. | 1.97E−2 (1.73E−2 to 2.21E−2) | 0.38 (0.34–0.43) | 1.17E−58 | 0.63 (0.61–0.65) |
| V3 QRS minimum deflection | µV | −4.76E−4 (−5.34E−4 to −4.18E−4) | −0.34 (−0.38 to −0.30) | 7.07E−58 | 0.70 (0.68–0.72) |
| QTc | ms | 6.73E−3 (5.38E−3 to 8.08E−3) | 0.27 (0.22–0.33) | 1.50E−22 | 0.75 (0.73–0.77) |
| Intercept | Unitless | −9.10 (−9.66 to −8.55) | −2.61 (−2.68 to −2.55) | 3.11E−225 |
Coefficients for absolute covariates and covariates normalized to mean 0 and standard deviation 1 are shown, along with units for each absolute covariate, P-values for each coefficient and AUCs for each covariate as an independent predictor.