Table 3 Odds Ratio (OR) and 95% Confidence Interval (CI) for hearing threshold of greater than 25 dB at 4000 Hz in the better ear with logistic regression
From: Interaction of smoking and occupational noise exposure on hearing loss: a cross-sectional study
variable | B | S.E. | Sig. | OR (95% CI) |
|---|---|---|---|---|
Age | ||||
≤ 40 (n = 153) | 1.0 | |||
> 40 (n = 259) | 0.982 | 0.312 | 0.002 | 2.7 (1.4–4.9) |
Exposure duration | ||||
≤ 10 (n = 70) | 1.0 | |||
11–20 (n = 177) | 1.139 | 0.462 | .014 | 3.1 (1.3–7.7) |
≥ 21 (n = 165) | 1.699 | 0.474 | < 0.001 | 5.5(2.1–13.8) |
Smoking (pack/year) | ||||
Non smoker(n = 206) | 1.0 | |||
≤ 10 (n = 105) | 1.401 | 0.297 | < 0.001 | 4 (2.2–7.2) |
> 10 (n = 101) | 3.041 | 0.346 | < 0.001 | 21 (10.6–41.2) |
constant | -3.400 | 0.493 | < 0.001 | 0.033 |