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Comparison of hearing loss in identical size anterioinferior and posteroinferior quadrant perorations
| Size of TM perforation (mm2) | Average hearing loss or the size in anterioinferior (AI) quadrant (dB) | Average hearing loss or the size in posteroinferior (PI) quadrant (dB) |
|---|---|---|
| 2 | 19.65 | 21.66 |
| 4 | 21.9 | 23.9 |
| 7 | 25 | 25 |
| 8 | 25 | – |
| 9 | 28 | 30 |
