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Table 2 Comparison between pre-injection and post-injection results of the grade and breathy character of dysphonia (n = 9)

From: Respiratory and voice outcomes of office-based injection laryngoplasty in patients with unilateral vocal fold paralysis

GRBAS scale

Grades

Pre-injection

Number of patients (%)

1 week post-injection

Number of patients (%)

3 months post-injection

Number of patients (%)

Chi-square test

Overall grade of dysphonia

0

0

2(22.2)

3(33.3)

P1 = 0.01*

P2 = 0.024*

P3 = 0.6

Ι

1(11.1)

6(66.7)

4(44.4)

ΙΙ

4(44.4)

0

2(22.2)

ΙΙΙ

4(44.4)

1(11.1)

0

Median value

ΙΙ

Ι

Ι

Breathy character

0

0

2(22.2)

3(33.3)

P1 = 0.01*

P2 = 0.024*

P3 = 0.6

Ι

1(11.1)

6(66.7)

4(44.4)

ΙΙ

4(44.4)

0

2(22.2)

ΙΙΙ

4(44.4)

1(11.1)

0

Median value

ΙΙ

Ι

Ι

  1. *P value < 0.05 is significant, P value > 0.05 non-significant, P1 pre-injection versus 1 week post-injection, P2 pre-injection versus 3 months post-injection, P3 1 week post-injection 1 versus 3 months post-injection