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Patient Categorizations Based on CHL Trends.
| Category | Criteria | Number of patients |
|---|---|---|
|
High-frequency
CHL |
Mean ABG for 2-4 kHz ≥ mean ABG for 0.25-0.5 kHz +10 dB Mean ABG for 0.25-0.5 kHz ≤ 20 dB |
8 |
| Large CHL | Mean ABG for 0.25-4 kHz ≥ 40 dB | 25 |
| Other CHL | Does not meet criteria for either of the above categories | 33 |
