Table 4.

Diagnostic accuracy indices of patient characteristics associated with an adverse outcome in patients presenting with BAT

	Cut-off value	Sens (95% CI)	Spec (95% CI)	LR (+)	LR (-)
ISS-score	>25	78 (40–96)%	76 (72–80%)	3.3 (2.2–4.9)	0.3 (0.1–1.0)
pH	< 7.32	33 (6–76%)	80 (74–85%)	1.7 (0.5–5.4)	0.8 (0.5–1.5)
BE (mmol/l)	< −5.7	33 (6–76%)	91 (86–95)%	3.8 (1.1–12.7)	0.7 (0.4–1.3)
HCO3- (mmol/l)	< 22	50 (14–86)%	53 (45–60)%	1.0 (0.5–2.4)	1.0 (0.4–2.1)
AST (U/l)	> 251	33 (9–69)%	97 (94–98)%	10.3 (3.5–30.0)	0.7 (0.4–1.1)
APTT (sec)	> 33	14 (1–58%)	95 (92–97%)	2.8 (0.4–18.7)	0.9 (0.7–1.2)
Positive FAST-result	NA	67 (31–91)%	98 (96–99%)	34.3 (15.1–78.5)	0.34 (0.13–0.86)

LR - negative likelihood ratio, LR+ positive likelihood ratio, CI confidence interval