Table 7.

Comparison of vocal and swallowing dysfunction between the two groups [n (%)]

Index		Observation group	Control group	χ2	P
Case (n)		55	55
One week after Operation	Vocal dysfunction	1 (1.82)	8 (14.55)	1.190	<0.001
	Swallowing dysfunction	1 (1.82)	6 (10.91)	4.654	<0.001
One month after Operation	Vocal dysfunction	0 (0.00)	2 (3.64)	0.982	<0.001
	Swallowing dysfunction	0 (0.00)	1 (1.82)	1.270	<0.001