Table 8.

AUC and likelihood ratios in the prediction of mortality

Severity Score	Non-transfused	Transfused	p value
	AUC	AUC
PRISM III	0.91 (0.84–0.97)	0.89 (0.83–0.95)	0.74
PIM2	0.93 (0.89–0.97)	0.88 (0.82–0.94)	0.19
Day 1 PELOD	0.92 (0.86–0.98)	0.90 (0.84–0.95)	0.61
	LR+ (95 % CI)	LR+ (95 % CI)
PRISM III	471 (166–1332)	64 (23–176)	0.007
PIM2	471 (167–1333)	38 (15–97)	0.0004
Day 1 PELOD	314 (120–825)	53 (18–143)	0.01
	LR− (95 % CI)	LR− (95 % CI)
PRISM III	0.57 (0.44–0.74)	0.39 (0.25–0.59)	0.12
PIM2	0.57 (0.44–0.74)	0.55 (0.41–0.74)	0.84
Day 1 PELOD	0.64 (0.51–0.81)	0.52 (0.38–0.72)	0.28

AUC area under the curve from a receiver operating characteristic (ROC) analysis; LR+ positive likelihood ratio, LR− negative likelihood ratio; CI confidence interval