Amlodipine inhibits the proliferation and migration of esophageal carcinoma cells through the induction of endoplasmic reticulum stress

Table 1 Clinicopathological characteristics of the esophageal squamous cell carcinoma patients

Parameters	n	Cav1.3 expression		P value
		High, n = 28	Low, n = 22
Age				0.833
< 65	33	17	16
≥ 65	17	11	6
Gender				0.231
Male	34	21	13
Female	16	7	9
Tumor location				0.485
Middle	30	18	12
Lower	20	10	10
Differentiation				0.102
Low	16	8	8
Moderate	21	12	9
High	13	8	5
TNM staging				0.435
I	10	6	4
II	27	13	14
III	13	9	4
Lymphatic metastasis				0.854
Yes	22	12	10
No	28	16	12
Hypertension				0.284
Yes	14	7	7
No	36	21	15