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Consequently, we developed a predictive model specific for BC mortality at 5 and 10 years resolving the above issues. This cohort study included 287 patients diagnosed with BC in a Spanish region in 2003\u20132016. Main outcome variable: time-to-BC death. Secondary variables: age, personal history of breast surgery, personal history of any cancer\/BC, premenopause, postmenopause, grade, estrogen receptor, progesterone receptor, c-erbB2, TNM stage, multicentricity\/multifocality, diagnosis and treatment. A points system was constructed to predict BC mortality at 5 and 10 years. The model was internally validated by bootstrapping. The points system was integrated into a mobile application for Android. Mean follow-up was 8.6\u2009\u00b1\u20093.5 years and 55 patients died of BC. The points system included age, personal history of BC, grade, TNM stage and multicentricity. Validation was satisfactory, in both discrimination and calibration. In conclusion, we constructed and internally validated a scoring system for predicting BC mortality at 5 and 10 years. External validation studies are needed for its use in other geographical areas.<\/jats:p>","DOI":"10.1038\/s41598-017-00536-7","type":"journal-article","created":{"date-parts":[[2017,3,20]],"date-time":"2017-03-20T16:42:18Z","timestamp":1490028138000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["A scoring system to predict breast cancer mortality at 5 and 10 years"],"prefix":"10.1038","volume":"7","author":[{"given":"Esther","family":"Paredes-Aracil","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonio","family":"Palaz\u00f3n-Bru","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David Manuel","family":"Folgado-de la Rosa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9 Ram\u00f3n","family":"Ots-Guti\u00e9rrez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonio Fernando","family":"Compa\u00f1-Rosique","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vicente Francisco","family":"Gil-Guill\u00e9n","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2017,3,24]]},"reference":[{"key":"536_CR1","unstructured":"Sociedad Espa\u00f1ola de Oncolog\u00eda M\u00e9dica. 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