APBB1IP and associated genes were evaluated by step-wise multivariate Cox regression analysis. Risk scores were calculated based on gene expression multiplied by a linear combination of a regression coefficient obtained from the multivariate Cox analysis. Patients were assigned to high- and low-risk groups according to the median risk score. The survival analysis of patients in the high- and low-risk groups was conducted using the “survival” R package. The receiver operating characteristic (ROC) curve was implemented by the R software package “survival ROC”.
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