Table 3.
Observed (Obs) and expected (Exp) number of deaths (all diseases, circulatory diseases, respiratory diseases and lung cancer) and SMRs with 95% CIs during 1971–2012 among workers at Tornio Works with employment more than 5 years, by department
| Department | All diseases | Circulatory diseases | Respiratory diseases | Lung cancer | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Obs | Exp | SMR | 95% CI | Obs | Exp | SMR | 95% CI | Obs | Exp | SMR | 95% CI | Obs | Exp | SMR | 95% CI | |
| Chromite mine | 12 | 19.3 | 0.62 | 0.32–1.08 | 3 | 9.1 | 0.33 | 0.07–0.95* | – | 1.0 | 0.00 | 0.00–3.65 | 1 | 1.6 | 0.61 | 0.02–3.41 |
| Ferrochromium plant | 30 | 44.4 | 0.68 | 0.46–0.96* | 15 | 21.4 | 0.70 | 0.39–1.15 | 2 | 2.5 | 0.80 | 0.10–2.90 | 3 | 3.8 | 0.80 | 0.16–2.33 |
| Stainless steel melting shop | 18 | 29.5 | 0.61 | 0.36–0.96* | 3 | 13.4 | 0.22 | 0.05–0.65** | 3 | 1.4 | 2.19 | 0.45–6.39 | 2 | 2.3 | 0.85 | 0.10–3.08 |
| Hot rolling mill | 3 | 6.2 | 0.48 | 0.10–1.40 | 1 | 2.6 | 0.38 | 0.01–2.12 | – | 0.2 | 0.00 | 0.00–16.3 | 1 | 0.4 | 2.35 | 0.06–13.1 |
| Cold rolling mill | 42 | 61.2 | 0.69 | 0.49–0.92* | 20 | 26.6 | 0.75 | 0.46–1.15 | 1 | 2.7 | 0.37 | 0.01–2.04 | 2 | 4.5 | 0.44 | 0.05–1.60 |
| Maintenance and services | 100 | 128.6 | 0.78 | 0.63–0.93** | 49 | 61.3 | 0.80 | 0.59–1.05 | 8 | 7.2 | 1.12 | 0.48–2.19 | 6 | 9.9 | 0.61 | 0.22–1.32 |
| Metallurgical laboratory | 7 | 14.3 | 0.49 | 0.20–1.00 | 1 | 6.1 | 0.16 | 0.00–0.90* | – | 0.6 | 0.00 | 0.00–5.75 | 1 | 1.0 | 0.97 | 0.02–5.40 |
| Office | 14 | 36.7 | 0.38 | 0.21–0.63*** | 7 | 15.7 | 0.45 | 0.18–0.91* | – | 1.9 | 0.00 | 0.00–1.94 | – | 2.8 | 0.00 | 0.00–1.34 |
| Any department | 208 | 305.0 | 0.68 | 0.59–0.77*** | 86 | 140.3 | 0.61 | 0.49–0.75*** | 13 | 15.6 | 0.83 | 0.44–1.42 | 14 | 23.2 | 0.60 | 0.33–1.01 |
* P < 0.05; ** P < 0.01; *** P < 0.001.