| CHL | Conductive hearing loss |
| SNHL | Sensorineural hearing loss |
| KTP | Potassium-Titanyl-Phosphate |
| ABG | Air–bone gap |
| EAC | External auditory canal |
| PTA | Pure-tone average |
| AC | Air conduction |
| BC | Bone conduction |
| IQR | Interquartile range (Q3–Q1) |
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