Table 3.

Sensitivity, specificity, and predictive values of individual preoperative screening measures.

	Sensitivity	Specificity	Positive Predictive Value	Negative Predictive Value
Positive RT-PCR assay	85.0% (62.1% to 96.7%)	100% (99.3% to 100%)	100.0%	99.4% (98.4% to 99.8%)
Positive Chest CT	45.0% (23.1% to 68.5%)	100% (99.3% to 100%)	100.0%	97.9% (96.9% to 98.6%)
Symptoms	50.0% (27.2% to 72.8%)	62.4% (58.0% to 66.6%)	5.0% (3.2% to 7.6%)	96.9% (95.3% to 98.0%)

The 95% confidence intervals are presented in parentheses.