Ischaemic heart disease mortality and noise exposure at 85dB(A) or higher: odds ratios by years of exposure compared to unexposed
| Years at ⩾85dB(A) | Crude OR | Adj* OR (95% CI) | Adj† OR (95% CI) |
|---|---|---|---|
| *Model included five pre-employment measures: see table 3. | |||
| †Model included five pre-employment measures and duration of employment. | |||
| Both sites | |||
| 1–9.9 | 1.21 | 1.23 (0.99–1.52) | 1.20 (0.96–1.49) |
| 10–19.9 | 1.04 | 1.02 (0.78–1.33) | 0.95 (0.70–1.30) |
| 20+ | 1.11 | 1.07 (0.73–1.55) | 0.98 (0.63–1.51) |
| Site A | |||
| 1–9.9 | 1.11 | 1.05 (0.75–1.46) | 1.06 (0.71–1.51) |
| 10–19.9 | 0.86 | 0.79 (0.53–1.16) | 0.72 (0.44–1.19) |
| 20+ | 0.88 | 0.81 (0.45–1.46) | 0.70 (0.34–1.44) |
| Site B | |||
| 1–9.9 | 1.26 | 1.34 (1.00–1.78) | 1.26 (0.95–1.70) |
| 10–19.9 | 1.24 | 1.31 (0.88–1.93) | 1.21 (0.80–1.83) |
| 20+ | 1.29 | 1.22 (0.75–2.00) | 1.17 (0.67–2.07) |