Table II.

Association between patient characteristics and KLF4 expression in gastric cancer of various stages.

	All stages			Stage II–III
	KLF4 expression			KLF4 expression
Variable	Low (n=36)	High (n=72)	P-value	Low (n=15)	High (n=33)	P-value
Age (years), median	69	70	0.76	70	69	0.76
Gender, n			0.75			0.36
Male	25	57		10	26
Female	11	15		5	7
Tumor invasion, n			0.27			0.27
≤T2	20	35		13	28
>T2	16	37		2	5
LN metastasis, n			0.65			0.21
Positive	27	51		14	26
Negative	9	21		1	7
Number of metastatic LNs, n			0.87			0.38
<7	26	53		9	24
≥7	10	19		6	9
M stage, n			0.76			–
0	25	52		–	–
1	11	20		–	–
Lymphovascular invasion, n			0.41			0.23
Positive	22	38		15	30
Negative	14	34		0	3
Vascular invasion, n			0.54			0.29
Positive	25	54		13	24
Negative	11	18		2	9
Histology, n			0.41			0.33
Intestinal	22	38		10	17
Diffuse	14	34		5	16
Tumor size (cm)
Median	5.0	5.6	0.43a	6.0	5.0	0.35a
<5, n	15	27		7	14
≥5, n	21	45	0.67b	8	19	0.78b
Preoperative chemotherapy, n			0.37			0.5
Administered	8	11		4	6
Not administered	28	61		11	27
Postoperative chemotherapy, n			0.33			0.28
Administered	18	43		10	27
Not administered	18	29		5	6

^aP-value for comparison of median tumor size

^bP-value for comparison of tumor size <5 vs. ≥5 cm. KLF4, Krüppel-like factor 4; LN, lymph node; M stage, metastasis stage.