Table 1.

Correlation between miR-449a expression and clinicopathological features of non-small cell lung cancer

Factor	No. of cases	MiR-449a Expression		χ2 value	P value
		lower	higher
Age
<62	11	6	5
≥62	19	9	10	0.144	0.705
Gender
Man	23	13	10
Woman	7	2	5	1.677	0.195
Smoking history
Smoker	18	13	5
Non smoker	12	2	10	8.889	0.003*
Histology
Sq	16	9	7
Ad	13	5	8
Other	1	1	0	1.870	0.469
Stage
I+II	9	2	7
III+IV	21	13	8	3.968	0.046*
Lymph node status
Negative	5	0	5
Positive	25	15	10	6.000	0.042*

^*Significant difference.

χ² test was used to evaluate the correlation of mir-449a expression and clinical pathologic parameters.