Statistical analysis
taste damage
SPSS 22.0 statistical software was used for all statistical analyses. The clinical baseline characteristics of the three groups were compared with the Chi-square test or Fisher exact probability method. The measurement data were expressed as mean ± standard deviation. The one-way analysis of variance was utilized for the analysis of the differences in positioning errors, dosimetry parameters, and OARs and pairwise comparisons. The Bonferroni method was used for multiple comparison corrections. The Kruskal–Wallis rank sum test was used for comparing taste damage and mucosal reaction among the three groups. All analyses were two-sided tests, and 