Table 1. Volumetric changes in the airways with and without the OAs (cm³).

region	Without OAs	With OAs	p-value	Deformation rate
	Mean ± SD	Mean ± SD
nasopharynx	2.3333±0.7377	2.3523±0.8019	0.542	0.81
palatopharynx	2.4482±0.8352	3.4161±0.5426	< 0.001**	39.54
glossopharynx	2.2759±0.3638	3.2882±0.6140	0.001**	44.48
hypopharynx	3.6281±0.8202	4.0505±0.6589	0.047*	11.64
total volume	10.6854±2.2740	13.1071±2.180	< 0.001**	22.67

* P<0.05;

** P<0.01