Table 4.

Correlation between S100-positive cell infiltration and clinical factors

Clinical factors	S100-positive cells’ infiltration		p value
	High n = 77	Low n = 51
Gender
Male	32	66	N.S.
Female	19	17
Depth
T1	20	26	<0.05
T2	16	29
T3	15	22
Nodal metastasis
Yes	26	36	<0.05
No	25	41
Lymphatic invasion
Yes	38	50	N.S.
No	13	27
Venous invasion
Yes	27	36	N.S.
No	24	41
Histology
Differentiated	26	32	N.S.
Undifferentiated	25	45