Table 2 Cross tabulation of the results of the proposed set of clinical-radiological criteria versus the RT-PCR, considering the total sample

Classification by the clinical-radiological criteria

Strong Suspicion

541 (53.6%)

138 (13.7%)

679 (67.3%)

PPV^a 79.7%

(76.6–82.7%)

Weak Suspicion

8 (0.8%)

322 (31.9%)

330 (32.7%)

NPV^a 97.6%

(95.9–99.2%)

Total

549 (54.4%)

460 (45.6%)

1009 (100%)

Sensitivity^a

98.5%

(97.5–99.5%)

Specificity^a

70%

(65.8–74.2%)

Accuracy^a 85.5%

(83.4–87.7%)