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Table 3 Air-bone gap preoperative and 2 and 6 months follow-up

From: Comparative study of tympanoplasty type I using periosteum versus tragal cartilage with perichondrium

ABG (air bone gap)

Group A

Periosteum

Group B

Cartilage

P value

Mean ± SD

Mean ± SD

Preoperative

 

500

35.25±6.98

32±7.99

0.035*

1000

31±9

29.63±8.43

0.648

2000

26.13±8.36

27.38±9.34

0.505

4000

29.13±7.67

28.88±8.12

1.000

Postoperative after 2 months

 

500

12.5±6.3

11.63±8.65

0.163

1000

9.63±5.82

8.75±8.45

0.183

2000

9.25±6.56

8.75±8.3

0.435

4000

8.63±8.09

11±9.14

0.199

Postoperative after 6 months

 

500

7.75±7.84

11.25±10.79

0.145

1000

6.75±6.56

9.63±11.23

0.397

2000

7.25±7.16

9.63±10.4

0.368

4000

6±7.44

11±9.69

0.003**

  1. Used Mann-Whitney test
  2. *Statistically significant: (p < 0.05), **High statistically significant: (p < 0.01)