Previously, the predictive role of high XPA expression for better prognosis has also been found in other types of cancers other than CRC: An Italian study investigated 171 ovarian cancer cases and suggested a longer OS and progression‐free survival (PFS) in cases that overexpressed XPA mRNA; similarly, high XPA protein expression in ovarian cancer has been regarded as an indicator for favorable prognosis according to a Norwegian research 20; Hyo Jung Cho et al. This evidence concerns the gene XPA and colorectal carcinoma.