Table 2

Relationship between immunohistochemical staining of β-catenin and depth of primary tumor growth

Type of lesion% of tumor cells stainedMembranous localizationCytoplasmic localization
No. examinedDepth of growth (mm)PNo. examinedDepth of growth (mm)P
Superficial>50%511.60.33751.50.012
≤50%522.0282.6
Nodular>50%284.70.70224.30.37
≤50%304.7365.0