Table 5. The relationship between TIGAR expression and tumor characteristics, based on immunohistochemical (IHC) score.

	TIGAR (IHC score)
Characteristic	No. patients (n = 79)
	Negative	Positive	P-value
Age			0.22
<60 years	21	18
≥60 years	16	24
Gender			0.09
Male	27	23
Female	10	19
Tumor size (cm)			0.01
≤3	20	34
>3	17	8
Pathology			<0.01
Squamous	18	7
Adenocarcinoma	19	35
Tumor differentiation			<0.01
poor	21	11
well	16	31
Pathological N stage			<0.01
N0	19	36
N1	18	6