Table 1. Status of TET1 expression level in gastric tumors with respect to clinicopathological characteristics.

Characteristics		TET1 high (27/80)	TET1 low (53/80)	P value
Age (years)		58.07 ± 13.12	56.96 ± 13.87	0.7309a
Tumor size (cm)		5.39 ± 2.27	5.39 ± 2.05	0.9940a
Gender
	Male	13	33	0.227b
	Female	14	20
Histology
	Intestinal	12	23	0.928b
	Diffuse	15	30
Stage
	EGC	5	2	0.027c
	AGC	22	51
Lymph node metastasis
	Negative	16	17	0.019b
	Positive	11	36

All tumors were classified into two subtypes using average TET1 expression.

Tumor size was calculated based on the largest diameter measured for each tumor.

EGC, early gastric cancer; AGC, advanced gastric cancer.

^aP value was measured with the Student's t test.

^bSignificance of association was determined using the χ² test.

^cAnalyzed with Fisher's exact test.