Table 5. ECV combined with conventional parameters for identifying new-onset atrial fibrillation.
| Models* | ROC | NRI | IDI | |||
|---|---|---|---|---|---|---|
| AUC (95% CI) | P † | Estimate (95% CI) | P † | Estimate (95% CI) | P † | |
| Conventional model | 0.725 (0.651–0.799) | - | Reference | - | Reference | - |
| Conventional model + MI-ECV | 0.792 (0.719–0.865) | 0.046 | 0.537 (0.229–0.845) | <0.001 | 0.045 (0.023–0.067) | <0.001 |
| Conventional model + NMI-ECV | 0.749 (0.672–0.825) | 0.261 | 0.149 (-0.174–0.471) | 0.365 | 0.021 (0.004–0.038) | 0.018 |
| Conventional model + integral ECV | 0.786 (0.716–0.856) | 0.029 | 0.537 (0.225–0.849) | <0.001 | 0.047 (0.021–0.072) | <0.001 |
*The models are logistic regression models, and the conventional model included right coronary artery and N-terminal pro-B-type natriuretic peptide, †Comparison with the conventional model.
ECV = extracellular volume, ROC = receiver operating characteristic, NRI = net reclassification index, IDI = integrated discrimination improvement, AUC = area under the curve, CI = confidence interval, MI = myocardial infarction, NMI = non-myocardial infarction