Table 4.

aPNea score and NEWS2 score discrimination and calibration performances in the development and validation cohorts.

	Development Cohort n = 128	Validation Cohort n = 330
AUROC (95% CI)
aPNea score model	0.86 (0.78–0.93)	0.79 (0.73–0.84)
NEWS2 score model	0.72 (0.59–0.85)	0.81 (0.75–0.87)
De Long’s test p-value	0.025	0.443
Brier score (95% CI)
aPNea score model	0.108 (0.071–0.145)	0.148 (0.124–0.172)
NEWS2 score model	0.132 (0.092–0.171)	0.131 (0.109–0.152)
Wald’s test p-value	0.088	0.073
Spiegelhalter test z-score (p-value)
aPNea score model	−0.010 (0.992)	1.267 (0.205)
NEWS2 score model	−0.045 (0.964)	−1.559 (0.119)

AUROC, area under the receiver operating characteristic curve; CI, confidence interval.