Do the Oncological and Surgical Outcomes of Young and Older Women Differ in the Treatment of Colorectal Cancer

Abstract Background: The present study aimed to compare the surgical and oncological outcomes between young and older women with colorectal cancer (CRC). Materials and Methods: This retrospective study included 1815 women with CRC between 2010 and 2014. Participants were divided into a young group (under the age of 65 years) and an old group (65 years and older). The surgical and oncological outcomes were compared between the two groups using univariate and multivariate analyses. Results: Around 45.1% (N = 819) patients were the older group. The old group had a higher comorbidity rate and a lower proportion of receiving postoperative chemotherapy. The old group also had a significantly higher blood loss (190 ± 611 mL vs. 145 ± 200 mL, p = 0.027) and a higher rate of intraoperative transfusion (5.4% vs. 3.0%, p = 0.011). They were found to develop more complications after surgery (11.7% vs. 7.8%, p = 0.015). The overall survival (OS) of the old group was lower than that of the young group (5-year OS rates:...