Table 1.

Relationships among HDAC1 and HDAC2 in NSCLC tissue and clinicopathologic factors

Clinicopathologic factor				HDAC1 expression		P value	HDAC2 expression		P value
	–	+		–	+
Gender
Male	38	34	0.254†	39	33
Female	9	14	0.532†	10	13	0.372†
Age (years)
< 58	26	21		28	19
≥ 58	21	27	0.532†	21	27	0.123†
Histologic type
SCC	22	23		25	20
AC	22	18		21	19
Others	3	7	0.366†	3	7	0.339†
Differentiation
Well/Moderate	33	20		33	20
Poor	14	28	0.005†	16	26	0.019†
pTNM stage*
I/II	34	24		35	23
III/IV	13	24	0.026†	14	23	0.032†
Lymphatic metastasis
No	27	21		28	20
Yes	20	27	0.182†	21	26	0.183†

SCC, squamous cell carcinoma; AC, adenocarcinoma.

^*TNM staging system of the International Union Against Cancer (2010).

^†Pearson’s χ² test.