Stepwise logistic regression analysis
| Nparm | DF | L-R χ² | Prob >χ² | Predicted | ||
| Control n | EDAC n | |||||
| Logistic regression effect likelihood ratio tests | ||||||
| fres | 1 | 1 | 19.0 | <0.0001* | ||
| FVC | 1 | 1 | 2.1 | 0.1453 | ||
| Confusion matrix# | ||||||
| Actual | ||||||
| Control | 8 | 0 | ||||
| EDAC | 1 | 14 | ||||
| AUC (bootstrap 95% CI) | 0.98 (0.89–1.00) | |||||
EDAC: expiratory dynamic airway collapse; fres: resonant frequency; FVC: forced vital capacity; AUC: area under the curve. *: p<0.05; #: misclassification rate 0.0435.