Location of nickel operation & Category of work | Variable with levels | Follow up period | Lung cancer | Nasal cancer | ||
---|---|---|---|---|---|---|
 |  |  | Obs | SIR/SMR | Obs | SIR/SMR |
Clydach Wales refinery: | Year first employed: | Â | Â | Â | Â | Â |
All workersa | Before 1920 | 1931–1985 | 83 | 617j, n | 55 | 37647j, n |
" | 1920–1929 | 1931–1985 | 88 | 314j, n | 12 | 7255j, n |
" | 1930–1939 | 1931–1985 | 20 | 138j | 1 | 1434j, n |
" | 1940–1949 | 1940–1985 | 14 | 118j | 0 | - |
" | 1950–1992 | 1950–1985 | 9 | 84j | 0 | - |
All workersb | 1953–1992 | 1958–2000 | 28 | 139j, k | 1 | 995j, n |
" | 1953–1962 | 1958–2000 | 18 | 137j |  |  |
" | 1963–1972 | 1963–2000 | 10 | 156j |  |  |
" | 1973–1992 | 1973–2000 | 0 | 0 |  |  |
Port Colborne Ontario refinery:c, d | Duration of exposure: | Â | Â | Â | Â | Â |
LC&S workers | ≥ 5 years | 1950–1984 | 38 | 366j, n | 15 | 17045j, n |
" | 25+ years | " | 7 | 363j, n | 0 | - |
" | Total | " | 72 | 241j, n | 19 | 7755j, n |
Non-LC&S workers | ≥ 5 years | " | 29 | 97j | 0 | - |
" | 25+ years | " | 17 | 89j | 0 | - |
" | Total | " | 30 | 93j | 0 | - |
Nickel anode workp | " | " | 7 | 91j | Â | Â |
Electrolytic workp | " | " | 23 | 99j | Â | Â |
Yard/Transportation workp | " | " | 21 | 87j | Â | Â |
Harjavalta Finland smelter & refinery:e | Â | Â | Â | Â | Â | Â |
All nickel exposed workers | Latency 20+ years | 1953–1995 | 20 | 212i, m | 2 | 1590i, n |
Smelter workers | Latency 20+ years | " | 13 | 200i, l | 0 | - |
" | 5+ years exposed | " | 8 | 101i | 0 | - |
" | <5 years exposed | " | 7 | 250i, l | 0 | - |
Refinery workers | Latency 20+ years | " | 6 | 338i, m | 2 | 6710i, n |
" | 5+ years exposed | " | 3 | 199i | 2 | 7520i, n |
" | <5 years exposed | " | 3 | 375i, l | 0 | - |
Thompson Manitoba refinery:f, g | Year first employed: | Â | Â | Â | Â | Â |
All workers | 1960–1986 | 1960–1986 | 25 | 116j | 0 | - |
Salaried workers | 1960–1986 | 1960–1986 | 5 | 155i | 0 | - |
Miners (hourly workers) | 1960–1986 | 1960–1986 | 7 | 96j | 0 | - |
Smelter workers (hourly) | 1960–1986 | 1960–1986 | 4 | 155i | 0 | - |
Refinery workers (hourly) | 1960–1986 | 1960–1986 | 6 | 172j | 0 | - |
British nickel plating company:h | Year first employed: | Â | Â | Â | Â | Â |
All workers | 1945–1975 | 1945–1993 | 11 | 108j | 0 | - |