Table 6. Performance results for extremely preterm newborns.

Model variables	Mean accuracy	Mean kappa	Accuracy of prediction	95% CI	No information rate	p-value	Sensitivity	Specificity
Thro, pH, Leu, Ht, A10	0.877	0.735	0.89	(0.795, 0.952)	0.644	<0.001	0.923	0.872
Thro, pH, Leu, Ht, A5	0.910	0.807	0.918	(0.83, 0.969)	0.644	<0.001	0.923	0.915
Thro, pH, Leu, Ht, A1	0.913	0.812	0.959	(0.885, 0.991)	0.644	<0.001	0.923	0.979
Thro, pH, Leu, Ht, CRP	0.893	0.743	0.918	(0.804, 0.977)	0.714	<0.001	0.929	0.914
Thro, pH, Leu, pO2, CRP	0.861	0.664	0.918	(0.804, 0.977)	0.714	0.005	1.0	0.886
Thro, Ht, Leu, CBF, A1	0.879	0.747	0.872	(0.743, 0.952)	0.617	<0.001	0.889	0.862
Thro, Ht, Leu, A1, SaO2	0.889	0.756	0.883	(0.774, 0.952)	0.667	<0.001	0.9	0.875