Table 4. Accuracy of RAS Model for estimating risk of progression of disease.

RAS, respiratory assessment scoring; AUROC, area under the receiver operating characteristic curve; CI, confidence interval.

Variable	Enrolled patients (n=252)
AUROC, % (95% CI)	85 (80-89)
Cutoff value	7
Sensitivity, % (95% CI)	81 (74-88)
Specificity, % (95% CI)	75 (68-83)
Positive predictive value, % (95% CI)	76 (68-83)
Negative predictive value, % (95% CI)	80 (73-87)
Positive likelihood ratio (95% CI)	3.23 (2.36-4.41)
Negative likelihood ratio (95% CI)	0.26 (0.18-0.38)