Table 2. Correlation of cripto-1 protein expression with clinicopathological parameters.

Characteristics	Cripto-1(low)	Cripto-1(high)	P value
Age (years)
≥58	69	78
<58	64	79	0.709
Sex
female	78	80
male	55	77	0.190
Smoking status
yes	51	68
no	82	89	0.392
Tumour location
left	53	72
right	80	85	0.303
Lesion type
central	57	75
peripheral	76	82	0.402
pT status
T1	80	78
T2+T3+T4	38	62	0.047
pN status
N0	77	56
N1+N2+N3	48	92	<0.001
pM status
M0	111	137
M1	22	20	0.359
pTNM status
I+II	80	64
III+IV	53	93	0.001
EGFR mutation status
yes	65	66
no	68	91	0.244
Serum CEA
normal (≤5 ng/mL)	79	80
elevated (>5ng/mL)	54	77	0.150
E-cadherin
negative	63	105
positive	70	52	0.001