Ischaemic heart disease mortality and NIL85: odds ratios for categories* of NIL85 versus unexposed
| Crude OR | Adj† OR (95% CI) | Adj‡ OR (95% CI) | |
|---|---|---|---|
| *Low, 85–94.7; Med, 94.8–99.6; High, 99.7–110.8 dB(A)-years. | |||
| †Model included five pre-employment measures: see table 3. | |||
| ‡Model included five pre-employment measures and duration of employment. | |||
| Both sites | |||
| Low | 1.11 | 1.15 (0.89–1.47) | 1.14 (0.89–1.47) |
| Med | 1.24 | 1.23 (0.96–1.57) | 1.18 (0.90–1.55) |
| High | 1.08 | 1.07 (0.82–1.39) | 1.03 (0.76–1.39) |
| Site A | |||
| Low | 1.08 | 1.04 (0.72–1.51) | 1.04 (0.71–1.51) |
| Med | 1.03 | 1.00 (0.69–1.46) | 1.03 (0.65–1.60) |
| High | 0.88 | 0.77 (0.52–1.14) | 0.74 (0.44–1.22) |
| Site B | |||
| Low | 1.06 | 1.15 (0.81–1.65) | 1.15 (0.80–1.65) |
| Med | 1.46 | 1.45 (1.02–2.06) | 1.32 (0.91–1.91) |
| High | 1.27 | 1.37 (0.96–1.96) | 1.31 (0.88–1.94) |