Table 4.

Discriminatory performance of LUPHAS score compared with qSOFA score and CURB-65 score by receiver operating characteristic (ROC) curve analysis.

Model	AUROC (CI 95%)	Sensitivity	Specificity
Total population (n = 130)
LUPHAS	0.86 (0.79–0.92)	79.2%	80.5%
qSOFA	0.69 (0.59–0.78)	64.0%	67.5%
Subgroup of lung infection (n = 108)
LUPHAS	0.84 (0.76–0.92)	78.0%	79.4%
CURB-65	0.69 (0.59–0.80)	39.5%	87.7%

The quick Sequential Organ Failure Assessment (qSOFA) score ranges 0–3 points, with 1 point each for systolic hypotension (⩽100 mm Hg), tachypnea (⩾22/min), or altered mentation. Patients with a score ⩾2 are associated with a greater risk of death or prolonged intensive care unit stay.

CURB-65 is a validated clinical assessment tool for predicting mortality in patients with community-acquired pneumonia, including confusion, urea >7 mmol/l, respiratory rate >30/min, low blood pressure (systolic <90 mm Hg, or diastolic <60 mm Hg, or both) and age ⩾65. Patients with a score ⩾2 are associated with a higher mortality and hospitalization needs to be considered.

AUROC, area under receiver operating characteristic curve; qSOFA, the quick Sequential Organ Failure Assessment.