Bioelectrical phase angle at diagnosis as a prognostic factor for survival in advanced head and neck cancer

Objective Bioelectrical impedance analysis (BIA) is used to measure the patient’s body composition, fat-free mass, phase angle (PA), and standardized phase angle (SPA), which are affected by malnutrition. Low values of PA and SPA have been found to be negative prognostic factors for survival in different types of cancer and other severe diseases. The aim of the current study was to investigate whether PA and SPA can be used to predict survival in head and neck (HN) cancer.