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Frequency distribution of hearing symptoms and impairment among textile workers in Karachi, Pakistan (n=264).
| Variable | Frequency (n) | Percentage (%) |
|---|---|---|
| Self-reported hearing loss | ||
| Yes | 100 | 38 |
| No | 164 | 62 |
| Audiometrya | ||
| ≤25 dB | 55 | 21 |
| ≥25 dB | 209 | 79 |
| Otoscopic examination | ||
| No hearing loss | 55 | 21 |
| Impairment in one ear | 9 | 3.4 |
| Impairment in both ear | 200 | 75.6 |
A WHO classification <25 no hearing loss and >25 hearing loss in both ears.
