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KMID : 1101820200080010025
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Journal of Breast Disease
2020 Volume.8 No. 1 p.25 ~ p.36
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Treatment Patterns and Clinical Outcomes in Elderly Patients with Breast Cancer
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Kang Kyu-Min
Kim Eun-Kyu
Kim Hyun-Ju
Kim Jee-Hyun
Kim Se-Hyun
Suh Koung-Jin
Kim In-Ah
Chae Su-Min
Kim Sung-Won
Kang Eun-Young
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Abstract
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Purpose: Although the number of elderly patients with breast cancer is increasing as the population ages, their treatment is controversial. We evaluated the prognostic factors associated with survival in elderly breast cancer patients and assessed the impact of comorbidity on prognosis.
Methods: This study included 362 patients (aged ≥65 years) who underwent surgery for breast cancer in our institution between 2003 and 2014. The patients were divided into early-aged (65?74 years) and late-aged (≥75 years) groups. Comorbidity was parametrized using the Charlson comorbidity index (CCI). Kaplan?Meier analysis was used to analyze overall survival (OS) and distant metastasis-free survival (DMFS). Prognostic factors were evaluated by Cox proportional hazards regression.
Results: The surgical method, subtypes, stage, and oncological features were similar between early- and late-aged groups; however, smaller proportions of patients in the late-aged group received chemotherapy (12.9% vs. 45.5%) and endocrine therapy (55.3% vs. 73.3%). In multivariable analysis, the poor prognostic factors associated with DMFS and OS were high CCI, high histologic grade, and advanced stage. Chemotherapy, endocrine therapy, and radiotherapy were not significantly related to DMFS and OS.
Conclusion: In this study, adjuvant treatments did not affect the prognosis of elderly patients with breast cancer. To clarify the effects of adjuvant therapies in these patients, a large-scale retrospective study that considers not only tumor characteristics but also life expectancy is necessary.
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KEYWORD
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Aged, Breast neoplasms, Comorbidity, Prognosis
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