Multivariate Cox regression analysis for overall survival and disease-free survival in hepatocellular carcinoma patients.

Abbreviations: OS, overall survival; DFS, disease-free survival; AFP, á-fetoprotein; HR, hazard ratio. Variables significantly associated with OS and DFS upon univariate Cox regression analysis were included in the multivariate analysis. Variables considered for OS analysis were TNM stage, AFP level, albumin level, SIRT1 expression, c-Myc expression, and p53 expression. Variables considered for DFS analysis were TNM stage, AFP level, albumin level, histologic grade, SIRT1 expression, c-Myc expression, and p53 expression.