Fig. 4

Multivariate analysis, nomogram and calibration plot for the predictive value of CXCR2 expression in patients of gastric cancer. a Multivariate Cox analysis identified independent prognosticators for OS of the cohort. b Nomogram constructed to predict 5-years overall survival in gastric cancer: Tumor invasion depth (early = T1 + T2, advanced = T3 + T4), Lymph node metastasis (absent = N0, present = N1 + N2 + N3), Distant metastasis (absent = M0, present = M1) and CXCR2 expression (low = low expression, high = high expression) were included. c Calibration plot for nomogram-predicted and observed 5-year survival. The nomogram performed well with the ideal model