Table 1.

TCF21 expression and clinicopathologic characteristics of lung cancer samples

Characteristics	Total	TCF21 expression		P value
		Low	High
Age (years)				0.567
< 60	46	22	21
> 60	54	26	28
Gender				0.541
Female	58	28	30
Male	52	26	26
Tumor stages				0.001*
I	21	15	6
II	26	19	7
III	29	28	1
IV	24	24	0
Tumor size (cm)				0.341
< 5	35	30	7
> 5	65	60	5
Tumor metastasis				0.001*
Negative	51	45	6
Positive	49	48	1
Tumor invasion				0.000*
Negative	27	20	7
Positive	73	70	3
Methylation level				0.000*
Low	56	30	26
High	44	44	0

Statistical analyses were performed by a χ2 test

*P < 0.05 was considered significant