XRCC4 and neoplasm: Like some known predictive markers such as tumor size, tumor stage, and microvessel density [11, 22], XRCC4 expression was significantly associated with the prognosis of hepatocarcinoma, and the corresponding prognostic values were 1.63 (1.25-2.11) for OS and 1.55 (1.19-2.02) for RFS, respectively (Table 3).