28 January 2023 : Database Analysis
Retrospective Study of 157 Patients with Otosclerosis to Evaluate Association Between Carhart Notch on the Preoperative Bone-Conduction Audiogram and Postoperative Hearing and Balance Evaluated by the Vestibular Disorders Activities of Daily Living Scale
Katarzyna Job
1ABCDEF, Agnieszka Wiatr 1ABCF, Hassan Awada 2CEF, Maciej Wiatr 1ABDEG*
DOI: 10.12659/MSM.939255
Med Sci Monit 2023; 29:e939255
Table 1 Variance analysis of average bone conduction thresholds (as an average for 500 Hz, 1000 Hz, 2000 Hz, 3000 Hz) and presence of the tinnitus and disturbance of balance before surgical treatment in group1 and group 4 considered together.
| Groups 1+4 (considered together) | Preoperative BC (dB) | ||||||
|---|---|---|---|---|---|---|---|
| Before surgery | n | Average | SD | Me | Min | Max | |
| Tinnitus | 13 | 25.3 | 7.7 | 23.8 | 15.0 | 36.4 | <0.001 |
| Disturbance of balance | 35 | 32.6 | 8.4 | 33.8 | 16.3 | 45.0 | |
| Tinnitus and disturbance of balance | 11 | 44.0 | 2.5 | 43.8 | 42.5 | 51.3 | |
| Tinnitus/BC=25.3 | 0.044 | <0.001 | |||||
| Disturbance of balance/BC=32.6 | 0.044 | 0.006 | |||||
| Tinnitus and disturbance of balance/BC=44.0 | <0.001 | 0.006 | |||||
| Preoperative BC – average bone conduction thresholds before surgery; BC – bone conduction threshold; dB – decibel; SD – standard deviation; Me – median; min – minimum; max – maximum; n – number of patients; Hz – hertz. | |||||||