Based on information provided by the Finnish Cancer Registry, this survey considers the incidence of cancers affecting as many as 46 parts of the body and their links with 335 occupational categories. By adjusting the occupation-specific risk ratios for social class, restricting their study to a particular age-group and applying the same criteria to women as to men, the author strives to make the relationship between cancers and certain occupations as clear as possible. The results are shown to correlate well with those obtained from specific studies of occupational cancer. Factors related to a person's occupation seem to determine some cancer risks, while the overall incidence and types of malignancy appear to be associated with the way of life of one's social class. Smoking, diet and and reproductive factors are discussed from this viewpoint. Of interest for future research, new connections between disease and occupation are indicated in some contributions.
