Table 5.

Sensitivity, specificity, PPV and NPV for each evaluation session and each observer when comparing MLS to thickness of the hematoma plus 3 mm [value (95 % confidence interval)]

	Observer 1		Observer 2
Evaluation	1	2	1	2
Sensitivity	0.2 (0.08–0.39)	0.1 (0.03–0.28)	0.23 (0.17–0.43)	0.17 (0.06–0.35)
Specificity	1 (0.85–1)	1 (0.85–1)	1 (0.85–1)	1 (0.85–1)
PPV	1 (0.52–1)	1 (0.31–1)	1 (0.56–1)	1 (0.46–1)
NPV	0.55 (0.41–0.68)	0.52 (0.38–0.65)	0.56 (0.41–0.69)	0.53 (0.4–0.67)