Breast-conserving therapy in older patients with breast cancer over three decades: progress or stagnation

Jan J. Jobsen* (Corresponding Author), Judith G. Middelburg, Job van der Palen, Sietske Riemersma, Ester Siemerink, Henk Struikmans, Sabine Siesling

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Background: The aim of this study was to analyze the distant metastases-free survival (DMFS), and disease-specific survival (DSS) after breast-conserving therapy (BCT) in older patients with breast cancer in a large, population-based, single-center cohort study with long-term follow-up.

Material and Methods: Analyses were based on 1,425 women aged 65 years and older with breast cancer treated with BCT. Patients were divided in three age categories: 65 – 70 years, 71 – 75 years, and >75 years. The study period extended over 30 years, divided in three decades. Multivariate survival analysis was carried out using Cox regression analysis.

Results: The two youngest age categories showed significant improvements over time in 12-year DMFS and DSS. For women aged 65 – 70 years, this improvement was noted in stage I and stage II disease, while for women aged 71 – 75 years this was mainly in stage II tumors. Women >75 years of age did not show any improvement over time, regardless of stage.

Conclusion: Among older Dutch women with breast cancer, outcomes with regard to DMFS and DSS after BCT differ between various age categories, showing the least gain in the very old.

Original languageEnglish
Pages (from-to)330-336
Number of pages7
JournalJournal of geriatric oncology
Issue number2
Publication statusPublished - 1 Mar 2019


  • UT-Hybrid-D
  • Breast-conserving therapy
  • Cohort study
  • Older adults
  • Survival analyses
  • Breast neoplasms
  • 22/4 OA procedure


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