Table 1.

Immunohistochemical staining for FCN3 in tumor and non-tumor tissues

Intensity of immunostaining	Tumor	Non-tumor
No	33	33
0	1(3.0)	0(0.0)
1+	7(21.2)	0(0.0)
2+	13(39.4)	0(0.0)
3+	12(36.4)	0(0.0)
3+~4+	0(0.0)	20(60.6)
4+	0(0.0)	13(39.4)

The intensity of immunostaining was graded as “0” for no immunostaining, 1+ for weak but definitely detectable immunostaining, 2+ for moderate immunostaining, and 3+ or 4+ for strong immunostaining.