Statistical Analysis
emesis
EVENTS
This study followed a selection (or Efficacy analyses were performed in the intention-to-treat population, which included all randomly assigned patients. For the cumulative incidence of emesis and other efficacy end points, Gray test was performed to compare groups. Patients were treated as competing events at the time they dropped out from the study for reasons other than emesis. Quality of life was analyzed using a mixed-effects model with EORTC-QLQ C30 and QLQ H&N35 scores assessed each week during treatment as a response value, treatment group and visit time as fixed effects, baseline scores as a covariate, and each patient as a random effect. Categorical variables were compared using the χAll statistical tests were 2-sided, and 