Abstract 1482 Table 1

Triage tool diagnostic accuracy statistics (95% CI) for predicting any adverse outcome (entire study period)

ToolN*C-statisticThresholdN (%) above thresholdSensitivitySpecificityPPVNPV
CRB-65 432,584 0.70
(0.70, 0.71) 		>0 102,964 (23.8%) 0.61
(0.61, 0.61) 		0.78
(0.77, 0.78) 		0.09
(0.09, 0.09) 		0.98
(0.98, 0.98)
NEWS2 433,101 0.80
(0.79, 0.80) 		>1 178835 (41.3%) 0.83
(0.83, 0.83) 		0.6
(0.6,0.6) 		0.07
(0.07–0.07) 		0.99
(0.99, 0.99)
PMEWS 438,810 0.79
(0.79, 0.79) 		>2 199,386 (45.4%) 0.85
(0.85, 0.85) 		0.56
(0.56, 0.56) 		0.06
(0.06, 0.07) 		0.99 (0.99,0.99)
PRIEST 438,880 0.82
(0.82, 0.82) 		>4 158,893 (36.2%) 0.83
(0.83, 0.83) 		0.65 (0.65,0.66) 0.08
(0.08, 0.08) 		0.99
(0.99, 0.99)
WHO 437,850 0.71
(0.71, 0.72) 		>0 235,775 (53.8%) 0.82
(0.81, 0.82) 		0.47
(0.47, 0.47) 		0.05
(0.05, 0.05) 		0.99
(0.99, 0.99)
TEWS 432,612 0.72
(0.71, 0.72) 		>2 134,097 (31%) 0.62
(0.62, 0.62) 		0.70
(0.70, 0.70) 		0.07
(0.07, 0.07) 		0.98
(0.98, 0.98)
Quick COVID 446,088 0.70
(0.69, 0.70) 		>3 35,145 (7.9%) 0.33
(0.33, 0.33) 		0.93
(0.93, 0.93) 		0.14
(0.14, 0.14) 		0.98
(0.98, 0.98)

  • *Patients with <3 parameters were excluded from analysis when estimating performance