Table 5.

Univariate and multivariate regression model of 22th-day PAS score

	Univariate analysis		Multivariate analysis
	β	p value	β	p value
Gender
Female	Ref
Male	0.16	0.797
Type of surgery
CHEP	Ref
CHP	− 1.1	0.05
Post-operative RT
No	Ref
Yes	0.56	0.445
pT
T2	Ref
T3	1.5	0.005	1.27	0.007
pN
N0	Ref
N1	1.6	0.09
Resection of one arytenoid
No	Ref
Yes	1.375	0.014	1.46	0.018
Decannulation time (post operative days)	0.19	0.13