1. Female breast cancer subtypes in the Romagna Unit of the Emilia-Romagna cancer registry, and estimated incident cases by subtypes and age in Italy in 2020
- Author
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Emanuele Crocetti, Alessandra Ravaioli, Orietta Giuliani, Lauro Bucchi, Rosa Vattiato, Silvia Mancini, Federica Zamagni, Benedetta Vitali, Chiara Balducci, Flavia Baldacchini, and Fabio Falcini
- Subjects
Cancer Research ,Oncology ,General Medicine - Abstract
Purpose The aim of this study was to estimate the Italian burden of incident breast cancer (BC) by subtypes, according to the distribution of hormonal receptor (HR) status and expression of human epidermal growth factor 2 (HER2). Methods Female breast cancers incidence in the Romagna Unit of the Emilia-Romagna registry (n. 10,711) were grouped into: HR+ /HER2–, HR+ /HER2+ , HR–/HER2+ , HR–/HER2– and missing, and by age: Results Overall, 70.7% of incident BC cases are expected to be HR+ /HER2-, 8.5% HR+ /HER2+ , 7.5% HR-/HER2-, 4.1% HR-/HER2+ and 9.3% missing. The global ranking is similar across age-groups but with age-specific differences. The proportion of missing was around 3-times lower than in the other Italian published population-based series and similar to the SEER one. In Italy, are estimated 38,841 HR+ /HER2- breast cancer cases, 4665 HR+ /HER2+ , 4098 HR-/HER2-, 2281 HR-/HER2+ , and 5092 not specified. Numbers by age-group were provided. Conclusions The present estimates relied on high-quality population-based data and provide a clinically relevant information on the burden of breast cancer subtypes. These data will support the planning of therapy needs for oncologists, decision-makers, and all other stakeholders.
- Published
- 2023