Table I.

Correlation between lncRNA CASC7 and the clinicopathological characteristics of patients with non-small cell lung cancer.

Characteristics	All cases (n=80)	CASC7 expression		P-value
		High (n=31)	Low (n=49)
Sex				0.7787
Male	48	18	30
Female	32	13	19
Age (years)				0.9097
≥60	51	20	31
<60	29	11	18
Tumor size (cm)				0.0758
≥5	46	14	32
<5	34	17	17
Smoking				0.7336
No	25	9	16
Yes	55	22	33
Differentiation degree				0.1096
Moderate	30	15	15
Poor	50	16	34
Clinical stage				0.0188
I-II	31	17	14
III-IV	49	14	35
Distant metastasis				0.0002b
No	36	22	14
Yes	44	9	35
Lymph node involvement				0.0439a
No	21	12	9
Yes	59	19	40

^aP<0.05,

^bP<0.01.