8 | 1982 | Australia | 3.3 | 27 | 6.45 (0.78 to 23.29) | 8.33 (0.21 to 46.28) | 5.26 (0.13 to 29.22) | No significant risk found |
9 | 1985 | USA | 4.3 | 262 | 1.81* | 2.46* | 1.58* | Lung |
10 | 1993 | Canada | 4.6 | 248 | 7.90* | | | Lung |
| | | | | | | | Breast |
11† | 1993 | Sweden | 5.1 | 233 | 2.4 (1.5 to 3.6) | 1.8* | 2.9* | Lung |
| | | | | | | | Non-Hodgkin’s lymphoma |
12† | 1995 | Sweden | | 917 | 1.5 (1.2 to 1.9) | | | Lung |
| | | | | | | | Non-melanoma skin cancers |
| | | | | | | | Primary liver cancer |
| | | | | | | | Increase in haematopoietic cancers |
13 | 2000 | Japan | 6 | 43 | 5.1 (1.7 to 10.8) | | | |
14 | 2000 | USA | | 490 | 0.75 (0.45 to 1.18) | 1.14 (0.37 to 2.66) | 0.77 (0.42 to 1.29) | Lung |
| | | | | | | | Breast |
7 | 2003 | South Australia | 5.5 (male) | 441 | 1.99 (1.46 to 2.65) | | | Lung |
| | | 6.1 (female) | | Diffuse Scl 2.73 (1.31 to 5.02) | | | |
| | | | | Limited Scl 1.85 (1.23 to 2.68) | | | |