Abstract

Knowledge of the prognostic factors and performance of machine learning predictive models for 2-year cancer-specific survival (CSS) is limited in the head and neck cancer (HNC) population. Data from our facilities' oncology information system (OIS) collected for routine practice (OIS dataset, n=430 patients) and research purposes (research dataset, n=529 patients) were extracted on adults diagnosed between 2000 and 2017 with squamous cell carcinoma of the head and neck. Machine learning demonstrated excellent performance (area under the curve, AUC) in the whole cohort (AUC=0.97, research dataset), larynx cohort (AUC=0.98, both datasets), and oropharynx cohort (AUC=0.99, both datasets). Tumor site and T classification were identified as predictors of 2-year CSS in both datasets. Hypothyroidism and fitness for operation were further identified in the research dataset. Datasets extracted from an OIS for routine clinical practice and research purposes demonstrated high utility for informing 2-year head and neck CSS.

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