Breast Cancer Clinical Trial
Official title:
A Propensity Score-Matched Analysis of Breast-Conserving Surgery Plus Whole-Breast Irradiation Versus Mastectomy in Breast Cancer
This is a retrospective propensity score-matched analysis of a large institutional cohort of patients in order to compare long-term outcomes and clinicopathologic characteristics between patients treated with breast conserving surgery or mastectomy for breast cancer.
The aim of the study is to compare long-term outcomes and clinicopathologic characteristics between patients treated with breast conserving surgery + whole breast irradiation or mastectomy for breast cancer. Recent observations regarding long-term outcomes among patients with early-stage breast cancer who underwent breast-conserving surgery plus whole-breast irradiation or mastectomy are from a small number of registry-based studies. Therefore, these findings may overestimate differences in survival between the two groups, compared with randomized controlled trials conducted in the 1980s. This study performed a propensity score-matched analysis in a cohort of 9710 patients aged <70 years who underwent breast conserving surgery + whole breast irradiation or mastectomy without external radiotherapy for a first primary breast cancer (pT1-2, N0-3a) at the European Institute of Oncology between 2000 and 2008. Patients were matched by propensity score. ;
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