Per cent change (95% CIs) of hearing thresholds (decibels) by noise exposure levels at longest job
| Variables | No. | Model A* | Model B† | Model C‡ |
| O*NET Noise (unit score)§ | 18.41 (12.23 to 24.93) | 16.01 (10.09 to 22.25) | 15.43 (9.70 to 21.45) | |
| O*NET noise quintile | ||||
| Quintile 1 (1.795–2.588) | 680 | 0 (Reference) | 0 (Reference) | 0 (Reference) |
| Quintile 2 (2.653–2.729) | 807 | 2.90 (−5.61 to 12.17) | 1.89 (−6.30 to 10.78) | 1.44 (−6.71 to 10.31) |
| Quintile 3 (2.737–2.868) | 711 | 0.72 (−8.98 to 11.45) | −0.81 (−10.30 to 9.68) | −0.90 (−10.40 to 9.61) |
| Quintile 4 (3.121–3.631) | 793 | 17.24 (6.20 to 29.42) | 14.02 (3.32 to 25.82) | 13.27 (2.87 to 24.72) |
| Quintile 5 (3.667–4.368) | 757 | 27.97 (15.99 to 41.20) | 23.66 (11.90 to 36.66) | 22.48 (10.99 to 35.15) |
| p Trend | <0.0001 | <0.0001 | <0.0001 | |
↵* Model A was adjusted for age, age2, sex and race/ethnicity.
↵† Model B: model A+further adjusted for body mass index, ototoxic medication, cumulative cigarette pack-years, current diagnosis of hypertension and current diagnosis of diabetes.
↵‡ Model C: model B+further adjusted for recreation noise and firearm noise.
↵§ Per cent change in hearing thresholds for one-unit score increase.
O*NET, Occupational Information Network.