Table 3.
Audiogram classification of patients with vertigo and dizziness.
| Audiogram classification | 2010 (%) | 2011 (%) | 2012 (%) | 2013 (%) | 2014 (%) | 2015 (%) | 2016 (%) | 2017 (%) | 2018 (%) | 2019 (%) | 2020 (%) | 2021 (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flat (R) | 11 (26.19) | 8 (32.00) | 28 (20.14) | 172 (26.88) | 113 (25.11) | 274 (27.45) | 281 (25.57) | 382 (27.21) | 332 (25.62) | 162 (29.24) | 362 (34.77) | 559 (32.96) |
| Flat (L) | 11 (26.19) | 5 (20.00) | 29 (20.86) | 153 (23.91) | 109 (24.22) | 250 (25.05) | 260 (23.66) | 367 (26.14) | 345 (26.62) | 160 (28.88) | 353 (33.91) | 545 (32.13) |
| HFGS (R) | 7 (16.67) | 7 (28.00) | 42 (30.22) | 164 (25.63) | 118 (26.22) | 295 (29.56) | 324 (29.48) | 352 (25.07) | 369 (28.47) | 146 (26.35) | 244 (23.44) | 438 (25.83) |
| HFGS (L) | 12 (28.57) | 8 (32.00) | 41 (29.50) | 183 (28.59) | 138 (30.67) | 290 (29.06) | 343 (31.21) | 390 (27.78) | 388 (29.94) | 136 (24.55) | 264 (25.36) | 437 (25.77) |
| HFSS (R) | 11 (26.19) | 5 (20.00) | 35 (25.18) | 166 (25.94) | 108 (24.00) | 225 (22.55) | 250 (22.75) | 332 (23.65) | 278 (21.45) | 125 (22.56) | 194 (18.64) | 355 (20.93) |
| HFSS (L) | 14 (33.33) | 7 (28.00) | 37 (26.62) | 174 (27.19) | 98 (21.78) | 233 (23.35) | 275 (25.02) | 356 (25.36) | 293 (22.61) | 136 (24.55) | 199 (19.12) | 345 (20.34) |
| LFF (R) | 2 (4.76) | 0 (0.00) | 7 (5.04) | 19 (2.97) | 16 (3.56) | 25 (2.51) | 37 (3.37) | 53 (3.77) | 72 (5.56) | 15 (2.71) | 50 (4.80) | 79 (4.66) |
| LFF (L) | 0 (0.00) | 1 (4.00) | 7 (5.04) | 13 (2.03) | 10 (2.22) | 27 (2.71) | 27 (2.46) | 50 (3.56) | 73 (5.63) | 19 (3.43) | 51 (4.90) | 86 (5.07) |
| MFU (R) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 1 (0.08) | 0 (0.00) | 1 (0.10) | 0 (0.00) |
| MFU (L) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 1 (0.10) | 0 (0.00) |
| MFRU (R) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 3 (0.67) | 0 (0.00) | 0 (0.00) | 0 (0.00) | 1 (0.08) | 0 (0.00) | 0 (0.00) | 2 (0.12) |
| MFRU (L) | 0 (0.00) | 0 (0.00) | 1 (0.72) | 2 (0.31) | 1 (0.22) | 0 (0.00) | 0 (0.00) | 1 (0.07) | 0 (0.00) | 0 (0.00) | 1 (0.10) | 1 (0.06) |
| HFN (R) | 0 (0.00) | 0 (0.00) | 1 (0.72) | 8 (1.25) | 5 (1.11) | 15 (1.50) | 16 (1.46) | 23 (1.64) | 15 (1.16) | 4 (0.72) | 17 (1.63) | 31 (1.83) |
| HFN (L) | 0 (0.00) | 1 (4.00) | 1 (0.72) | 6 (0.94) | 3 (0.67) | 11 (1.10) | 9 (0.82) | 10 (0.71) | 13 (1.00) | 6 (1.08) | 14 (1.34) | 30 (1.77) |
| No typing (R) | 12 (28.57) | 5 (20.00) | 29 (20.86) | 128 (20.00) | 101 (22.44) | 190 (19.04) | 217 (19.75) | 299 (21.30) | 267 (20.60) | 111 (20.04) | 208 (19.98) | 291 (17.16) |
| No typing (L) | 6 (14.29) | 4 (16.00) | 27 (19.42) | 121 (18.91) | 96 (21.33) | 206 (20.64) | 206 (18.74) | 258 (18.38) | 227 (17.52) | 108 (19.49) | 188 (18.06) | 313 (18.46) |
HFGS, High frequency gently sloping; HFSS, High frequency steeply sloping; LFF, Low frequency falling; MFU, Mid frequency U-shape; MFRU, Mid frequency Reverse U-shape; HFN, High frequency notching.