CCL7 and CCL21 overexpression in gastric cancer is associated with lymph node metastasis and poor prognosis

Figure 4 Kaplan-Meier survival curves for disease-free survival of 194 patients with gastric cancer. A: Categorized by chemokine ligand 7 (CCL7) expression, survival was significantly worse for patients with higher CCL7 expression than those with equal or lower CCL7 expression (P = 0.002); B: Categorized by CCL8 expression, no significant difference was observed among the three groups (P = 0.269); C: Categorized by CCL21 expression, survival was significantly worse for patients with higher CCL21 expression than those with equal or lower CCL21 expression (P = 0.001).