Table 2.
Audiological results.
| Cases 45 n (%) |
Controls 45 n (%) |
P value | |||
|---|---|---|---|---|---|
| Age (years) of patients with hypoacousia Mean ± SD | 48.7 ± 10.6 | 55.3 ± 8.3 | .02 | ||
| Audiometry | Normal | 19 (42.2) | 33 (73.3) | .008 | |
| Bilateral alteration | 18 (40) | 10 (22.2) | |||
| Unilateral alteration | 8 (17.8) | 2 (4.4) | |||
| Audiometric alteration | Right ear | 21 (46.7) | 12 (26.6) | .049 | |
| Left ear | 23 (51.1) | 10 (22.2) | .004 | ||
| Bone conduction | Sensory hypoacousia | Right ear | 19 (42.2) | 12 (26.6) | >.05 |
| Left ear | 22 (48.8) | 10 (22.2) | >.05 | ||
| Conductive hypoacousia | Right ear | 1 (2.2) | 0 | >.05 | |
| Left ear | 1 (2.2) | 0 | >.05 | ||
| Mixed hypoacousia | Right ear | 1 (2.2) | 0 | >.05 | |
| Left ear | 0 | 0 | >.05 | ||
| Logoaudiometry | 2 (4.4) | 0 | >.05 | ||
| Tympanometry 226 Hz | Right ear | Curve A | 23 (51.1) | 29 (64.4) | .2 |
| Curve As | 22 (48.8) | 16 (35.5) | |||
| Left ear | Curve A | 19 (42.2) | 25 (55.5) | .2 | |
| Curve As | 26 (57.7) | 20 (44.4) | |||
| High-frequency tympanometry | Right ear | 1B1G | 32 (71.1) | 43 (95.5) | .002 |
| 3B1G | 13 (28.8) | 2 (4.4) | |||
| Left ear | 1B1G | 33 (73.3) | 42 (93.3) | .01 | |
| 3B1G | 12 (26.6) | 3 (6.6) | |||