Table 1.

Relationship between CASC9 expression and clinicopathological features of ESCC

Characteristics	n	CASC9 expression		P
		Positive	Negative
Gender
Male	29	19	10	0.282
Female	13	11	2
Age
<60	23	17	6	0.742
≥60	19	13	6
Tumor size (cm)
<4	19	15	4	0.496
≥4	23	15	8
Differentiation
Well	10	2	8	<0.001
Moderate	23	19	4
Poor	9	9	0
Tumor invasion (T)
T1–T2	7	5	2	1.00
T3–T4	35	25	10
Lymph node metastasis (N)
Absent	18	13	5	1.00
Present	24	17	7
TNM stage
I + II	22	15	7	0.738
III + IV	20	15	5