[Age criteria assessment of the relation of oncological mortality to working condition exposure]

The ratio of indices of the mortality due to neoplasms within a cohort of workers exposed to carcinogenic industrial effects to those among the nearby population is not infrequently increased with age. However, in such cases an average age of the subjects died from cancer among this cohort may prove to be less than in the other population. This fact frequently leads to an erroneous conclusion of the so-called "young cancer" as a sign of its occupational character. The error results from the reasonable differences in age of industrial workers and general population not being taken into account. The method for calculating a "standardized" average age of died persons is suggested.