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Final hearing outcome in each grade of sudden sensorineural hearing loss (SSNHL).
| Grade | Complete recovery | Marked improvement | Slight improvement | No change | Total |
|---|---|---|---|---|---|
| 1 | 85 | 0 | 5 | 36 | 126 |
| 2 | 30 | 5 | 24 | 22 | 81 |
| 3 | 25 | 23 | 11 | 20 | 79 |
| 4 | 1 | 9 | 7 | 7 | 24 |
| Total | 141 | 37 | 47 | 85 | 310 |
