Optimizing Survival Predictions of Hypopharynx Cancer: Development of a Clinical Prediction Model

Abstract

Objectives To develop and validate a clinical prediction model (CPM) for survival in hypopharynx cancer, thereby aiming to improve individualized estimations of survival. Methods Retrospective cohort study of hypopharynx cancer patients. We randomly split the cohort into a derivation and validation dataset. The model was fitted on the derivation dataset and validated on the validation dataset. We used a Cox's proportional hazard model and least absolute shrinkage and selection operator (LASSO) selection. Performance (discrimination and calibration) of the CPM was tested. Results The final model consisted of gender, subsite, TNM classification, Adult Comorbidity Evaluation‐27 score (ACE27), body mass index (BMI), hemoglobin, albumin, and leukocyte count. Of these, TNM classification, ACE27, BMI, hemoglobin, and albumin had independent significant associations with survival. The C Statistic was 0.62 after validation. The model could significantly identify clinical risk groups. Conclusions ACE27, BMI, hemoglobin, and albumin are independent predictors of overall survival. The identification of high‐risk patients can be used in the counseling process and tailoring of treatment strategy or follow‐up. Level of Evidence 4 Laryngoscope , 130:2166–2172, 2020

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