Table 1.

CLDN18 status at two cut-off values and clinicopathological characteristics in primary tumors and peritoneal disseminations

	n	CLDN18 in primary tumors						CLDN18 in peritoneal disseminations
		40% cut-off			75% cut-off			40% cut-off			75% cut-off
		−	+	P-value*	−	+	P-value*	−	+	P-value*	−	+	P-value*
Total	84	36	48		60	24		47	37		67	17
Sex				0.35			0.62			0.82			0.78
Male	55	26	29		38	17		30	25		43	12
Female	29	10	19		22	7		17	12		24	5
Age				0.27			0.48			0.13			0.60
< 65	44	16	28		33	11		21	23		34	10
≥ 65	40	20	20		27	13		26	14		33	7
Tumor site				0.53			0.09			0.06			0.08
U	17	7	10		9	8		7	10		10	7
M	51	20	31		37	14		27	24		43	8
L	16	9	7		14	2		13	3		14	2
Histologic type				0.11			0.77			1.0			1.0
intestinal	18	11	7		12	6		10	8		15	3
diffuse	66	25	41		48	18		37	29		52	14

CLDN Claudin

^*Fisher’s exact test