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Table 3 The comparison as regards graft taking between study groups

From: Do mastoidectomy and type of graft affect tympanoplasty outcome in Egyptian children? A prospective randomized study

Groups

Taken graft

Chi-square

Yes

No

Total

N

%

N

%

N

%

χ2

P value

I

45

90.00

5

10.00

50

25.00

3.294

0.348

II

44

88.00

6

12.00

50

25.00

III

42

84.00

8

16.00

50

25.00

IV

39

78.00

11

22.00

50

25.00

Total

170

85.00

30

15.00

200

100.00

I + IV

84

84.00

16

16.00

100

50.00

0.039

0.843

II + III

86

86.00

14

14.00

100

50.00

Total

170

85.00

30

15.00

200

100.00

I + II

89

89.00

11

11.00

100

50.00

1.922

0.165

III + IV

81

81.00

19

19.00

100

50.00

Total

170

85.00

30

15.00

200

100.00