Table 3 Ischaemic heart disease mortality and noise exposure: odds ratio for exposed (⩾1 year at 85dB(A) or higher) v unexposed.
| % Exposed | |||||
|---|---|---|---|---|---|
| Cases | Controls | Crude OR | Adj* OR (95% CI) | Adj† OR (95% CI) | |
| Both sites | 65% | 62% | 1.14 | 1.15 (0.95–1.40) | 1.13 (0.92–1.39) |
| Site A | 72% | 72% | 1.00 | 0.95 (0.70–1.29) | 0.99 (0.71–1.40) |
| Site B | 59% | 53% | 1.26 | 1.32 (1.02–1.70) | 1.25 (0.96–1.62) |
*Model included five pre‐employment measures: systolic and diastolic BP, BMI, smoking, and height.
†Model included five pre‐employment measures and duration of employment.