Table 2.

ROC Analysis for PSI and CURB-65 Score in Patients With SARS-CoV-2 CAP and Non-SARS-CoV-2 CAP

Variable	Patient Population	AUC (95% CI)	Sensitivity (95% CI)	Specificity (95% CI)	PPV (95% CI)	NPV (95% CI)
PSI	Non-SARS-CoV-2 CAP	0.79 (0.77-0.80)	0.71 (0.67-0.75)	0.78 (0.77-0.79)	0.16 (0.15-0.18)	0.98 (0.97-0.98)
	SARS-CoV-2 CAP	0.82 (0.78-0.86)	0.83 (0.55-0.91)	0.66 (0.61-0.92)	0.37 (0.31-0.61)	0.94 (0.90-0.97)
CURB-65 score	Non-SARS-CoV-2 CAP	0.75 (0.73-0.77)	0.72 (0.68-0.77)	0.66 (0.65-0.67)	0.12 (0.10-0.13)	0.97 (0.97-0.98)
	SARS-CoV-2 CAP	0.79 (0.75-0.84)	0.83 (0.50-0.89)	0.61 (0.58-0.85)	0.33 (0.29-0.52)	0.94 (0.89-0.96)

The 95% CI is calculated from the 2.5 and 97.5 percentiles of the bootstrap distribution. AUC = area under the receiver operating characteristic curve; CAP = community-acquired pneumonia; CURB-65 = Confusion, Urea > 7 mM, Respiratory Rate ≥ 30 breaths/min, BP < 90 mm Hg (Systolic) or < 60 mm Hg (Diastolic), Age ≥ 65 Years; NPV = negative predictive value; PPV = positive predictive value; PSI = Pneumonia Severity Index;. ROC = receiver operating characteristic.