Table 3.

Further details of AUCs.

	4C pivotal	4C HCUV	SEIMC pivotal	SEIMC HCUV
Youden cut-off, point	13 (11–13)	9.5 (7.5–10.5)	8.5 (7.5–9.5)	7.5 (6.5–7.5)
Specificity	0.75 (0.56–0.76)	0.83 (0.75–0.89)	0.66 (0.62–0.71)	0.79 (0.73–0.83)
Sensitivity	0.64 (0.62–0.82)	0.95 (0.87-1)	0.84 (0.79–0.87)	0.97 (0.9-1)
Positive predictive value	0.28 (0.27–0.36)	0.06 (0.06–0.07)	0.24 (0.23–0.25)	0.07 (0.06–0.07)
Negative predictive value	0.98 (0.98–0.99)	0.88 (0.88–0.89)	0.97 (0.97–0.98)	0.89 (0.88–0.90)
Positive likelihood ratio	2.52 (1.40–3.43)	5.63 (3.43–9.03)	2.45 (2.05-3)	4.73 (3.36–6.05)
Negative likelihood ratio	0.48 (0.23–0.68)	0.06 (0-0.17)	0.24 (0.18–0.35)	0.03 (0-0.14)

Bracketed number indicate 95% confidence interval.

HCUV, Hospital Clínico Universitario de Valladolid.