Breats cancer is a major health problem in elderly ( ≥ 70 years) women. Increase incidence with age and the progressive increase in life expectancy mean that the numbers in elderly breast cancer diagnosis are increasing. These patients do not always receive the proper treatment and despite this the survival of this population is not always depends on cancer, there are other competing causes of death typical of the aging population.
A retrospective observational analysis of women ≥ age 70 diagnosed with breast carcinoma in HUPHM between 2014 and 2020 was made. Clinical, pathological data and stages at diagnosis were analyzed. We checked our patients with the national death center (official national registry) thus obtaining an exact date of death and the cause of death. Data updated in January 2023 , ensuring a minimum follow-up of 24 months. We excluded deaths from Covid or of unknown cause to avoid bias.
A total of 421 patients were analyzed, mean age of 78.6 years and median follow-up of 48 months. 28% of patients had died at the time of analysis, 11% due to cancer and 17% from other causes. If we analyze the population deceased by cancer, no deaths are detected in patients diagnosed with carcinoma in situ (4% of the population), in stage I (30% of the population) the cumulative incidence of cancer death at 5 years is 3%, 7% In stage II (30% of the population), 15% in stage III (16%) and 70% in stage IV (12%). Death by other causes are more frequent in early breast cancer, the cumulative incidence at 5 years are 10% in stage I, 22% in stage II, 44% in satge III and just 10% in stage IV. The most frequent causes of death in this population were caridovascular events and infections. There are no differences in 5-year mortality according to histological subtypes 20%, 12%, 25% and 12% for triple negative, Rh+/HER2-, RH+/her2+ and RH-/HER2+ respectively.
Although elderly patients do not receive optical treatments, mortality from cancer in early stages is incidental at 5 years, a different scenario is seen in metastatic disease in which the patient's prognosis depends mainly on the oncological disease, Therefore, an effort should be made in the treatment of these patients with metastatic breast cancer since adequate treatments can have a clearly positive impact on the survival of patients.
The authors.
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All authors have declared no conflicts of interest.