MicroRNA-21 Promotes Cell Growth and Migration by Targeting Programmed Cell Death 4 Gene in Kazakh’s Esophageal Squamous Cell Carcinoma

Table 2

Correlation between expression level of miR-21 and PDCD4 in 50 pairs of ESCC.

	PDCD4 expression			value
	Negative (−)	Positive (+)
ESCC
miR-21 expression
Negative (−)	3 (6.0%)	10 (20.0%)	7.144	0.010	−0.371
Positive (+)	32 (64.0%)	4 (8.0%)
Normal
miR-21 expression
Negative (−)	3 (6.0%)	24 (48.0%)	5.346	0.020	−0.327
Positive (+)	9 (18.0%)	14 (28.0%)