Table 1.

Correlation between clinicopathological characteristics and expression of YAP1 in the EC patients (N=72)

Characteristics	n	YAP1+	Percent	χ2	P-value
Age, years
<60	39	27	69.2	0.106	0.745
≥60	33	24	72.7
Sex
Male	57	41	72.0	0.159	0.690
Female	15	10	66.7
Tumor location
Upper esophagus	12	9	75.0	0.153	0.926
Middle esophagus	39	27	69.2
Lower esophagus	21	15	71.4
Differential grade
Well	18	12	66.7	0.320	0.852
Middle	34	24	70.6
Poor	20	15	75.0
LN metastasis
Negative	46	28	60.9	6.121	0.013
Positive	26	23	88.4
pTNM stage
I	14	7	50.0	7.488	0.024
II	34	23	67.6
III	24	21	87.5

Abbreviations: EC, esophageal cancer; LN, lymph node; pTNM, pathological tumor, node, metastasis.