Table 2. Immunohistochemical staining of LRIG1, LRIG2, and LRIG3 (n = 70).

Immunohistochemical score*	N (%)
LRIG1
0	0 (0)
1	0 (0)
2	12 (17)
3	58 (83)
LRIG2
0	0 (0)
1	0 (0)
2	12 (17)
3	58 (83)
LRIG3
0	37 (53)
1	29 (41)
2	4 (6)
3	0 (0)

*Protein score: 0 = 0%, 1 = 1–25%, 2 = 25–50%, 3 = >50% of positive cells.