Diagnostic Accuracy of Mucosal Biopsy versus Endoscopic Mucosal Resection in Barrett’s Esophagus and Related Superficial Lesions

Table 3

Agreement and disagreement in histopathologic diagnosis between biopsies and EMR; the agreement is marked with underline and bold numbers and the upgrading cases lie on the right side to agreement cases, while downgrading cases lie on the left side to agreement cases.

			EMR based histologic diagnosis
			NDBE; = 16			LGD; = 12			HGD; = 10			IMC; = 8			IAC; = 2			Kappa statistic
			gp A	gp B	T	gp A	gp B	T	gp A	gp B	T	gp A	gp B	T	gp A	gp B	T
Biopsy based histologic diagnosis	NDBE	= 22	2	12	14	2	4	6	0	2	2	0	0	0	0	0	0	Kappa = 0.430; 95% CI: 0.170–0.690
	LGD	= 14	0	0	0	4	2	6	0	4	4	4	0	4	0	0	0
	HGD	= 8	1	0	2	0	0	0	4	0	4	1	0	2	0	0	0
	IMC	= 2	0	0	0	0	0	0	0	0	0	2	0	2	0	0	0
	IAC	= 2	0	0	0	0	0	0	0	0	0	0	0	0	2	0	2

gp A = group A, gp B = group B, and T = total.