Table 3.

Agreement between the histological findings after VABB and the final diagnosis after surgery, according to the interpretation of weighted kappa values provided by Landis J.R. and Koch G.G. (κ: 0.92 = almost perfect agreement).

	Surgery
VABB	Benign Findings	B3 Lesions	B4 Lesions	BC	TOT
B2	36	0	0	0	36
B3	1	11	0	1	13
B4	0	0	0	2	2
B5	0	0	0	34	34
Total	37	11	0	37	85

Agreement: κ = 0.92, standard error: 0.08; 95% CI: 0.76–1.08; p-value < 0.05.