Abstract
Aim: This retrospective study aimed to evaluate the effect of age on cancer relapse and survival in breast cancer patients undergoing different treatments. Methods: The propensity score method was used to correct for disparities between two groups; 2049 young patients were matched to 4053 older patients. Kaplan-Meier curves and Cox proportional hazards models were used to assess disease-free survival. Results: In the original cohort, young patients showed higher lymph node metastasis, hormone-receptor positivity and high Ki-67 levels. After propensity score matching, the disease-free survival of young patients with the luminal B-like subtype who received mastectomy with early stage disease exhibited inferior survival. Conclusion: Decisions about biology-driven systemic treatment strategies for young patients are worthy of discussion with a multidisciplinary tumor board.
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