Table 3.

Results of descriptive statistical analysis for voice-related quality of life before and after thyroidectomy

		Before thyroid operation				After thyroid operation
V-RQOL score	Number of patients	Min	Max	Mean	SD	Min	Max	Mean	SD	p-value
Social-emotional domain	40	100	100	100	0.158	94	100	99.8	0.949	1
Physical-functional domain	40	96	100	99.2	1.176	79	100	97.8	4.802	0.5
Total	40	98	100	99.6	1.279	85	100	98.7	3.083	0.5

Differences in mean scores of V-RQOL before and after thyroid surgery

SD standard deviation, Min minimum observed score, Max maximum observed score

p-value—calculated probability, results of exact binomial (two-tailed) used to examine differences in the number of patients with V-RQOL score = 100 of voice self-assessment variables before and after thyroidectomy