Table 1 Distribution of cohorts analysed (numbers and %) by decade of birth and decade of hire
From: Lung cancer mortality and exposure to polycyclic aromatic hydrocarbons in British coke oven workers
Company | NSF | BSC (all) | BSC (6 plants) | |||
|---|---|---|---|---|---|---|
Number | % | Number | % | Number | % | |
Decade of birth | ||||||
1890 - 1899 | 0 | 0.0 | 4 | 0.1 | 4 | 0.3 |
1900 - 1909 | 753 | 20.4 | 411 | 15.2 | 188 | 12.6 |
1910 - 1919 | 1055 | 28.5 | 814 | 30.1 | 419 | 28.0 |
1920 - 1929 | 973 | 26.3 | 855 | 31.6 | 486 | 32.5 |
1930 - 1939 | 586 | 15.8 | 481 | 17.8 | 298 | 19.9 |
1940 - 1949 | 331 | 9.0 | 142 | 5.2 | 102 | 6.8 |
Decade of hire | ||||||
1910 - 1919 | 16 | 0.4 | 8 | 0.3 | 3 | 0.2 |
1920 - 1929 | 94 | 2.5 | 60 | 2.2 | 21 | 1.4 |
1930 - 1939 | 313 | 8.5 | 134 | 5.0 | 41 | 2.7 |
1940 - 1949 | 474 | 12.8 | 267 | 9.9 | 60 | 4.0 |
1950 - 1959 | 1352 | 36.6 | 1430 | 52.8 | 881 | 58.9 |
1960 - 1969 | 1449 | 39.2 | 808 | 29.8 | 491 | 32.8 |
Total | 3698 | 2707 | 1497 |