Abstract
ABSTRACTNow we are facing to aging society. We aimed to determine the long-term outcomes receiving adjuvant chemotherapy among elderly patients with stage III colorectal cancer. Elderly patients (≧65 years, n=91) diagnosed as stage III colorectal cancer and received adjuvant chemotherapy were retrieved from the database and classified into two groups according to whether the patient received monotherapy (n=65) or doublet therapy(n=26). Recurrence-free survival and overall survival were compared between the groups. To balance the essential variables, we conducted propensity score matching. After one-to-one propensity score matching, each group consisted of 22 patients. No significant difference was detected by comprehensive geriatric assessment 7. Overall survival was significantly longer in the monotherapy group. Adverse events occurred more frequently in the doublet therapy group. Monotherapy may improve the long-term outcome of elderly patients while the adverse events were less frequent.
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