Table 2.

Correlations between miR-421 expression and clinical characteristics in lung adenocarcinoma patients (n=73)

Variable	No. of cases	miR-421 expression		P
		low	high
Total	73	37	36
Age (years)
≤60	44	23	21	0.7382
>60	29	14	15
Sex
Male	36	14	22	0.0468
Female	37	23	14
Smoking
No	43	26	17	0.0454
Yes	30	11	19
TNM stage
I/II	53	29	24	0.2620
III	20	8	12
Differentiation
Poor/moderate	67	31	36	0.012
Good	6	6	0
5-year survival
No	26	8	18	0.0114
Yes	47	29	18