Role of RECK methylation in gastric cancer and its clinical significance

Table 1 Relation between clinicopathological characteristics and RECK methylation in gastric cancer patients

Variable	Patients (n)	RECK methylation	P value
Age (yr)			0.689
≤ 65	32	16
> 65	8	3
Tumor size (cm)			0.121
≤ 5	24	9
> 5	16	10
Borrmann classification			0.199
1+2	19	7
3+4	21	12
Tumor differentiation			0.935
Well	25	12
Moderate/poor	15	7
Tumor invasion			0.023
T1+T2	28	10
T3+T4	12	9
Nodal status			0.199
N-	19	7
N+	21	12

TNM was staged according to the guideline of International Union against Cancer (UICC). N-: Without nodal metastasis; N+: With nodal metastasis.

Table 2 Relation between RECK methylation in peritoneal lavage and peritoneal metastasis

PLM	Peritoneal metastasis
	+	-
+	6	8
-	3	23

PLM: Methylation in peritoneal lavage.

Table 3 Relation between RECK methylation in peritoneal lavage and clinicopathological factors

Variable	Patients (n)	RECK methylation in peritoneal lavage	P value
Tumor invasion			0.193
T1+T2	28	8
T3+T4	12	6
Nodal status			0.273
N-	19	5
N+	21	9