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Hearing loss according to site of tympanic membrane perforation (n = 64)
| Site | Quadrant | No. of ears | Percentage | Average hearing loss (dB) |
|---|---|---|---|---|
| Single | AI | 3 | 4.68 | 26.6 |
| PI | 3 | 4.68 | 32.4 | |
| Two quadrant | AS + AI | 10 | 15.62 | 28.6 |
| PS + PI | 6 | 9.37 | 36.6 | |
| AI + PI | 12 | 18.75 | 32 | |
| Three quadrant | AS + AI + PI | 9 | 14.06 | 36.6 |
| Four quadrant | AS + AI + PS + PI | 21 | 32.8 | 44.6 |
