CXCR7/CXCL12 axis is involved in lymph node and liver metastasis of gastric carcinoma

Table 2 The relationship between the clinical pathological characteristics and CXCL12/CXCR7 expression in gastric carcinoma

Factor	n	CXCR12+CXCR7+	CXCL12+CXCR7-/CXCL12-CXCR7+	CXCR12-CXCR7-	r	P value
Diameter (cm)					0.205	0.009
< 3.5	70	41	11	18
≥ 3.5	90	69	11	10
Depth of invasion					0.240	0.002
T1 + T2	66	37	11	18
T3 + T4	94	73	11	10
Clinical stages					0.200	0.001
I + II	69	41	9	19
III + IV	91	69	13	9
Lymph node metastasis					0.310	0.000
-	64	34	11	19
+	96	86	11	9
Liver metastasis					0.227	0.016
-	91	60	16	15
+	29	26	2	1

P < 0.05 was considered as statistically significant.