Table 2.
Pure-tone audiometry results in MD, pMD, VM, and pVM patients.
| Diagnosis | MD ipsilesional side n = 191 |
MD contralesional side n = 191 |
pMD n = 98 |
VM n = 99 |
pVM n = 179 |
|---|---|---|---|---|---|
| Low FIa, dB (median (IQR)) | 62.0 (19.0) | 20.0 (16.0) | 31.0 (28.6) | 17.0 (14.0) | 16.0 (15.5) |
| MD | pMD | VM | pVM | ||
| Asymmetrical low-frequency hearing lossb, n (%) | 190 (100.0%) n = 190c |
0 (0.0%) n = 93 |
2 (2.0%) n = 99 |
6 (3.4%) n = 179 |
|
| Overall hearing lossd, n (%) | 181 (94.8%) | 62 (66.7%) | 24 (24.2%) | 45 (25.1%) | |
a
For probable MD, VM, and probable VM patients, the mean of both sides is presented.
b
Pure tone threshold difference ≥30 dB between both ears at 500 and 1,000 Hz.
c
One MD patient was excluded from this result due to otosclerosis on the contralesional side.
d
Mean pure tone threshold at 500, 1000, 2000 and 4,000 Hz ≥35 dB, at least on one side.
MD, definite unilateral Menière’s disease; pMD, probable Menière’s disease; VM, definite vestibular migraine; pVM, probable vestibular migraine; FI, Fletcher Index; dB, decibels; IQR, interquartile range; n, number of patients.