Table I.
Hearing outcomes are presented as the mean of threshold by air conduction (TAC) and threshold by bone conduction (TBC) before and after insertion of the stretcher. ABG pre and post indicate the air-bone gap before and after insertion of the stretcher, respectively; Δ ABG indicates the difference between air-bone gaps before and after insertion of the stretcher.
| Patient n | TAC pre | TBC pre | TAC post | TBC post | ABG pre | ABG post | Δ ABC |
|---|---|---|---|---|---|---|---|
| 1 | 23.8 | 16 | 19.6 | 16 | 7.8 | 3.6 | 4.2 |
| 2 | 87.9 | 49 | 69.2 | 49 | 38.9 | 20.2 | 18.7 |
| 3 | 89.6 | 46.5 | 75 | 46.5 | 43.1 | 28.5 | 14.6 |
| 4 | 71.7 | 57 | 60.8 | 57 | 14.7 | 3.8 | 10.9 |