Table 5.
Categorical longitudinal change in pure-tone thresholds by air conduction.
| Patient | Duration of observation (years) | Age at first and last audiogram | Right ear | Left ear |
|---|---|---|---|---|
| 7 | 5.8 | 15 years, 5 months to 21 years, 2 months | Improving | Fluctuating improving |
| 8 | 6.8 | 25 years, 1 month to 31 years, 11 months | Stable | Fluctuating progressive |
| 6 | 7.8 | 15 years, 0 months to 22 years, 10 months | Fluctuating progressive | Fluctuating progressive |
| 2 | 9.3 | 5 years, 8 months to 15 years, 0 months | Fluctuating progressive | Progressive |
| 5 | 9.7 | 10 years, 10 months to 20 years, 6 months | Fluctuating progressive | Progressive |
| 4 | 11.5 | 6 years, 5 months to 17 years, 11 months | Fluctuating progressive | Fluctuating progressive |
| 1 | 15.0 | 4 years, 6 months to 19 years, 6 months | Fluctuating progressive | Fluctuating progressive |
| 9 | 15.7 | 6 years, 4 months to 22 years, 0 months | Fluctuating progressive | Progressive |
| 3 | 28.5 | 5 years, 0 months to 33 years, 6 months | Fluctuating | Fluctuating progressive |