Table 1.

Association of miR-421 with clinicopathological features of NSCLC patients

Features	All cases	miR-421 expression		P
		Low	High
Total	132	61	71
Age (years)				0.816
≤60	57	27	30
>60	75	34	41
Gender				0.857
Female	53	25	28
Male	79	36	43
Smoking history				0.112
No	51	28	23
Yes	81	33	48
Tumor size (cm)				0.145
≤3	56	30	26
>3	76	31	45
Lymph-node metastasis				0.008
Negative	53	32	21
Positive	79	29	50
Differentiation				0.339
Good/moderate	83	41	42
Poor	49	20	29
TNM stage				0.004
I–II	58	35	23
III–IV	74	26	48

Note: P<0.05 are shown in bold.

Abbreviations: miR-421, microRNA-421; NSCLC, non-small-cell lung cancer.