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Criteria for hearing improvement according to the criteria used by Labatut et al. [14].
| Value | |
|---|---|
| Complete recovery | PTA < 25 dB HL |
| Marked improvement | PTA improvement > 30 dB HL |
| Slight improvement | PTA improvement 10–30 dB HL |
| Non-recovery | PTA improvement < 10 dB HL |
PTA—puretone average of 0.5, 1, 2, and 4 kH; dB HL – decibels hearing level.
