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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

GroupsTaken graftChi-square
YesNoTotal
N%N%N%χ2P value
I4590.00510.005025.003.2940.348
II4488.00612.005025.00
III4284.00816.005025.00
IV3978.001122.005025.00
Total17085.003015.00200100.00
I + IV8484.001616.0010050.000.0390.843
II + III8686.001414.0010050.00
Total17085.003015.00200100.00
I + II8989.001111.0010050.001.9220.165
III + IV8181.001919.0010050.00
Total17085.003015.00200100.00