Follow-up study among model and pattern makers in a German automobile company. Results of a second follow-up

An historical follow-up study of 528 model makers in a German automobile company found an unusual pattern of mortality among these workers that included an increased risk of total cancer and tumors of the stomach, genitourinary organs, and the brain (Becker et al, 1992). Because of small numbers of cases and problems with the validity of causes of death, we carried out a second follow-up using data from the official mortality statistics and extending the observation period by five years. The new results did not confirm the previous observations of an increased risk of total cancer, cancer of the genitourinary organs, and tumors of the brain but confirmed indications of an increased risk of stomach cancer and suggested for the first time that there may be an increased risk of cancer of the intestine. Though the small numbers of cases did not allow statistical confirmation of these findings, they are consistent with the results of other studies recently conducted in the United States and published in this journal.