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Standardised mortality rates (95% confidence intervals) in groups exposed and unexposed to aluminium sulphate pollution after incident at Lowermoor, north Cornwall
| Standard | Exposed population (E) | Unexposed population (U) | Ratio (E/U) (95% CI) | |
|---|---|---|---|---|
| England and Wales | 77.7 (73.5 to 82.0) | 71.8 (65.4 to 78.4) | 1.08 (0.97 to1.21) | |
| Cornwall and Isles of Scilly | 81.6 (77.2 to 86.2) | 75.9 (69.2 to 83.1) | 1.07 (0.97 to 1.20) | |
