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Hearing impairment (WHO classification, better ear average across 0.5/1/2/4 kHz in dB).
| WHO Hearing Impairment | All (n) | Males (n) | Females (n) | p-Value |
|---|---|---|---|---|
| No (<20 dB) | 46.6% (2418) | 41.8% (1111) | 51.7% (1307) | <0.0001 |
| Mild to moderately severe (20–64.9 dB) | 51.4% (2664) | 56.0% (1490) | 46.5% (1174) | <0.0001 |
| Severe to complete (≥65 dB) | 2.0% (104) | 2.2% (58) | 1.8% (46) | 0.37 |
