Table 3 Cross tabulation of the results of the proposed set of clinical-radiological criteria versus the RT-PCR, considering the subgroup of patients with mild/moderate respiratory disfunction at ICU admission

Classification by the clinical-radiological criteria

Strong Suspicion

295 (54.5%)

66 (12.2%)

361 (66.7%)

PPV^a 81.7%

(77.7–85.7%)

Weak Suspicion

5 (0.9%)

175 (32.3%)

180 (33.3%)

NPV^a 97.2%

(94.8–99.6%)

Total

300 (55.5%)

241 (44.5%)

541 (100%)

Sensitivity

98.3%

(96.9–99.8%)

Specificity^a

72.6%

(67–78.2%)

Accuracy^a 86.9%

(84–89.7%)