A scoring system to predict recurrence in breast cancer patients

Autor: José Vicente Coloma-Lidón, Vicente Francisco Gil-Guillén, José Ramón Ots-Gutiérrez, David Manuel Folgado-de la Rosa, Cristina Llorca-Ferrándiz, Sonia Alonso-Hernández, Antonio Palazón-Bru, Esther Paredes-Aracil
Rok vydání: 2018
Předmět:
Zdroj: SURGICAL ONCOLOGY-OXFORD
r-FISABIO. Repositorio Institucional de Producción Científica
instname
r-FISABIO: Repositorio Institucional de Producción Científica
Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana (FISABIO)
r-ISABIAL. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica y Sanitaria de Alicante
ISSN: 0960-7404
Popis: Objective: Current breast cancer recurrence prediction models have limitations for clinical practice (statistical methodology, simplicity and specific populations). We therefore developed a new model that overcomes these limitations. Methods: This cohort study comprised 272 patients with breast cancer followed between 2003 and 2016. The main variable was time-to-recurrence (locoregional and/or metastasis) and secondary variables were its risk factors: age, postmenopause, grade, oestrogen receptor, progesterone receptor, c-erbB2 status, stage, multicentricity, diagnosis and treatment. A Cox model to predict recurrence was estimated with the secondary variables, and this was adapted to a points system to predict risk at 5 and 10 years from diagnosis. The model was validated internally by bootstrapping, calculating the C statistic and smooth calibration (splines). The system was integrated into a mobile application for Android. Results: Of the 272 patients with breast cancer, 47 (17.3%) developed recurrence in a mean time of 8.6 +/- 3.5 years. The system variables were: age, grade, multicentricity and stage. Validation by bootstrapping showed good discrimination and calibration. Conclusions: A points system has been developed to predict breast cancer recurrence at 5 and 10 years.
Databáze: OpenAIRE