Table 6. Scoring criteria of E-cadherin, ZEB1, and vimentin.

Grade	E-cadherin	ZEB1			Vimentin
		Intensity	Area	Stromal cell
0	normal	Negative	Negative	Negative	Negative
1	<5% loss	Equivocal	<5%	Positive	<5%
2	5–50% loss	Weak	5–50%		5–50%
3	≥50% loss	Moderate	≥50%		≥ 50%
4		Strong