Serum p53 Antibody Is Not Associated with p53 Immunoreactivity in Patients with Pancreatobiliary Cancers

Table 5

Detection of anti-p53 antibody, CEA, and CA19-9.

	Biliary tract cancer
	Sensitivity	Specificity	PPV^*1	NPV^*2	FPR^*3	FNR^*4	Accuracy
p53 antibody	0.0%	83.8%	0.0%	42.6%	16.1%	100.0%	39.3%
CEA	41.6%	93.5%	29.4%	59.1%	6.4%	58.3%	51.5%
CA19-9	91.6%	93.5%	33.3%	84.8%	9.6%	8.3%	59.0%

∗1PPV: positive predictive value.
∗2NPV: negative predictive value.
∗3FPR: false positive rate.
∗4FNR: false negative rate.