Expression of peanut agglutinin-binding mucin-type glycoprotein in human esophageal squamous cell carcinoma as a marker

Table 2 Assessment of usefulness of Gal-GalNAc as tumour marker by PNA/ELLA

	PNA/ELLA Upper limit of normal (O.D) = 0.159 (A₄₅₀)
	WDESCC	MDESCC	PDESCC	All patients
Sensitivity (%)	88.9	86.0	87.5	87.5
Specificity (%)	90.0	90.0	90.0	90.0
Positive predictive value (%)	76.2	89.6	84.9	94.6
Negative predictive value (%)	95.8	86.6	91.8	77.6

ISSN: 1476-4598