Multivariable analysis
tumor, malnutrition
REGRESSION, TUMOR, MALNUTRITION
To avoid model overfitting, four different logistic regression models were established. The first model consisted of the laryngeal substructures from univariable analysis (dosimetric laryngeal model) with Our second model exclusively contained the muscular structures of the swallowing apparatus with Since not only dosimetric but also clinical parameters may influence nutritional status, a fourth model (dosimetric clinical model) consisting of icm V40 (%) and other clinically relevant parameters (tumor localization, malnutrition before RT, combined chemotherapy, and gender) was calculated. It was confirmed that both icm V40% (b = −1.9; Exp(b) = −2.7; 95% CI: 0.01–0.8; 