Table 2.

Statistical evaluation of nucleosomes compared to CEA and CA 19-9 for colorectal carcinoma

Parameter	Cutoff value	Sensitivity %	Specificity %	J index	Accuracy %	Kappa		PPV %	NPV %	ROC curve area
						Value	P
CA 19-9	28 u/ml	36.4	88.9	26	41	0.121	0.088	91.56	21.62	0.524
CEA	3.56 ng/ml	56.2	100	55.8	62.2	0.290	<0.001	100	30.40	0.808
Nucleosomes	421	100	100	100	100	1.00	<0.001	100	100	1.0