Table 3 Comparison of VF-QOL questionnaire scores before the surgery and at 1 month and 6 months after the surgery

Experimental group

VF

48.48

(30.30, 60.61)

90.91

(84.85, 93.94)

87.88

(81.82, 93.94)

< 0.001

< 0.001

0.005

QOL

75.00

(61.11, 86.11)

100.00

(97.22, 100.00)

97.22

(94.44, 100.00)

< 0.001

< 0.001

< 0.001

Control group

VF

48.48

(27.27, 57.58)

90.91

(87.88, 93.94)

90.91

(84.85, 93.94)

< 0.001

< 0.001

0.200

QOL

75.00

(63.89, 83.33)

100.00

(100.00, 100.00)

97.22

(97.22, 100.00)

< 0.001

< 0.001

< 0.001