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Association of severity of peripheral hearing loss with incident cognitive impairment.
| PTA level | Studies# | RR (95% CI) | P heterogeneity | I 2 |
|---|---|---|---|---|
| ≤25 dB HL | — | 1, reference | — | — |
| 26–40 dB HL | 314,20,29 | 1.19 (0.96, 1.48) | 0.23 | 31% |
| 41–70 dB HL | 114 | 3.00 (1.43, 6.30) | — | — |
| >70 dB HL | 114 | 4.94 (1.09, 22.40) | — | — |
Abbreviations: CI = confidence interval, PTA = pure-tone average, RR = relative risk, dB HL = decibels hearing level.
