Stratification analysis for expression of RRM1 at primary cancer and survival of GC patients in ZJU set.

NOTE: Multivariate COX proportional hazard analysis was conducted to evaluate HR of RRM1. The adjusted HR was adjusted by sex and age at diagnosis. The TNM stage was based on tumor invasion, lymph node involvement, and distance organ metastasis. HR of RRM1 was based on high expression versus low expression. *Statistics significant on COX analysis, p<0.05.