Figure 4

Overall survival analysis for CCR7 expression. Kaplan-Meier curves for overall survival (OS) in 111 patients with high CCR7 expression and 89 patients with low CCR7 expression in the cytoplasm. The difference between these two groups is not highly significant as determined by the log-rank test (P = 0.044). However, it can be observed from the curve that in the first five years, survival rate sharply decreased in patients with high CCR7 expression in the cytoplasm, while hardly any patient in the low expression group died during the first five years.