Table 2. The expression of CDH4 and CDH1 in clinical and pathological characteristics of SACC.

Characteristics	For CDH4					For CDH1
		Total	Low CDH4*	High CDH4*	P value	Total	Low CDH1	High CDH1	P value
Gender
	Female	39	31	8	1.00	16	13	3	0.23
	Male	28	22	6		14	8	6
Age
	≤55	38	27	11	0.07	16	12	4	0.69
	>55	29	26	3		14	9	5
Stage
	Early	31	20	11	0.01**	12	7	5	0.41
	Late	36	33	3		18	14	4
Invasion
	No	28	21	7	0.55	11	7	4	0.69
	Yes	39	32	7		19	14	5
Metastasis
(Lymph node and distant)	No	51	38	13	0.16	25	17	8	1.00
	Yes	16	15	1		5	4	1

^*Because of limited samples number, the expression of CDH4 and CDH1 was divided into two levels, in which low expression included the Negative and weakly positive as shown in Table 1 and 3, and high expression included positive and strongly positive.

^**P<0.05.