Proportion of cancer deaths attributed to different
factors:
| Rank |
Factors / Classes of Factors |
% of All Cancer Deaths |
| 1 |
Nutrition |
35 |
| 2 |
Tobacco |
30 |
| 3 |
Infection |
10 |
| 4 |
Reproductive
& Sexual Behaviour |
7 |
| 5 |
Occupation |
4 |
| 6 |
Alcohol |
3 |
| 7 |
Geophysical
Factors |
3 |
| 8 |
Pollution |
2 |
| 9 |
Medicine
& Medical Procedures |
1 |
| 10 |
Food
Additives |
<
1 |
| 11 |
Industrial
Products |
<
1 |
| 12 |
Unknown |
3
- 4 |
Source: Doll and Peto, 1981
|