Haydeé Verduzco-Aguirre/X
May 21, 2025, 19:15
Haydeé Verduzco-Aguirre shared study on 20-year breast cancer trends and treatment gaps in São Paulo
Haydeé Verduzco-Aguirre, Clinical Fellow in Medical Oncology at Queen’s University, shared a post on X about her recent co-authored study, published in The Lancet Regional Health:
“Check out our new study in The Lancet Reg Health-Americas: we analyzed data from 125,000+ patients with breast cancer diagnosed in São Paulo over 20 years.
We found improved survival, but persistent treatment gaps and increasing delays to care.
Median overall survival increased from 10.7 to 11.7 years. But the median diagnosis-to-treatment interval more than doubled, and the proportion of patients receiving surgery, chemotherapy, or radiotherapy decreased over time.
When comparing observed treatment utilization to estimates of optimal use based on the NCCN guidelines, we also found lower than expected treatment utilization across all modalities and stages at diagnosis.
Comparing expected and actual treatment utilization can help identify system-level gaps to guide future efforts to further improve breast cancer survival.”
Title: Twenty years of breast cancer epidemiology and treatment patterns in São Paulo, Brazil—observed versus expected treatment utilization in a retrospective cohort
Journal: The Lancet Regional Health
Authors: Haydee Verduzco-Aguirre, Fernanda Mallucelli Favorito, Fabio Ynoe de Moraes, Gustavo Marta, Camila Tagle, Carlos Henrique dos Anjos, André Mattar, Brooke E. Wilson
Learn more about breast cancer on OncoDaily.
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