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Incidence of selected cancers in Swedish railway workers, 1961–79

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Abstract

Among all Swedish men, 20 to 64 years of age and employed in 1960, railway workers were selected and compared with the population at large, concerning the incidence of leukemia, lymphoma, tumors of the brain, breast, and the pituitary gland. The study was a re-analysis of the 1961–79 incidence data previously showing no increase in risk for leukemia and brain tumors for railway workers. In the present study, follow-up was divided into two 10-year periods, and elevated relative risks (RR) were found for the first decade. For the first decade, engine drivers and conductors combined had an RR of chronic lymphocytic leukemia, acute myeloid leukemia, and lymphoma of 1.9 (95 percent confidence interval [CI]=0.9–4.0), 1.4 (CI=0.4–4.3), and 1.0 (CI=0.5–1.9), respectively. For all brain tumors, the RR was 1.2 (CI=0.8–1.9), with a higher risk estimate for those below age 30 (RR=12.2, CI=2.8–52.5). Three cases of breast cancer and nine cases of tumors of the pituitary gland occurred among engine drivers and conductors, corresponding to RRs of 4.9 (CI=1.6–11.8) and 3.2 (CI=1.6–6.2), respectively. Work on trains entails extremely high exposure to low frequency magnetic fields (EMF). The results give some support to the hypothesis of an association between EMF and certain types of cancers. The outcome for the pituitary gland, being a focal point of hormonal regulation, suggests a hormonal link.

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References

  1. Coleman M, Beral V. A review of epidemiological studies of the health effects of living near or working with electricity generation and transmission equipment.Int J Epidemiol 1988;17: 1–12.

    Google Scholar 

  2. Savitz DA, Calle EE. Leukemia and occupational exposure to electromagnetic fields: Review of epidemiologic surveys.J Occup Med 1987;29: 47–51.

    PubMed  Google Scholar 

  3. Report of an Advisory Group on Non-ionising Radiation.Electromagnetic Fields and the Risk of Cancer, Chilton, UK: National Radiological Protection Board 1992: Documents of NRPB, Vol 3, No. 1.

  4. Tynes, T, Andersen A, Langmark F. Incidence of cancer in Norwegian workers potentially exposed to electromagnetic fields.Am J Epidemiol 1992;136: 81–8.

    PubMed  Google Scholar 

  5. Balli-Antunes M, Pfluger DH, Minder CE. The mortality from malignancies of haematopoietic and lymphatic systems (MHLS) among railway engine drivers.Environmentrics 1990;1: 121–30.

    Google Scholar 

  6. Floderus B, Persson T, Stenlund C, Wennberg A, Öst Å, Knave B. Occupational exposure to electromagnetic fields in relation to leukemia and brain tumors.Cancer Causes Control 1993;4: 465–76.

    PubMed  Google Scholar 

  7. Törnqvist S, Knave B, Ahlbom A, Persson T. Incidence of leukaemia and brain tumours in some “electrical occupations”.Br J Ind Med 1991;48: 597–603.

    PubMed  Google Scholar 

  8. Demers PA, Thomas DB, Rosenblatt KA, et al. Occupational exposure to electromagnetic fields and breast cancer in men.Am J Epidemiol 1991;134: 340–7.

    PubMed  Google Scholar 

  9. Matanoski GM, Breysse PN, Elliott E. Electromagnetic field exposure and male breast cancer (Letter).Lancet 1991;i: 737.

    Google Scholar 

  10. Milham S. Mortality in workers exposed to electromagnetic fields.Environ Health Perspec 1985;62; 297–300.

    Google Scholar 

  11. Milham S. Increased mortality in amateur radio operators due to lymphatic and hematopoietic malignancies.Am J Epidemiol 1988;127: 50–4.

    PubMed  Google Scholar 

  12. Sahl JD, Kelsh MA, Greenland S. Cohort and nested case-control studies of hematopoietic cancers and brain cancer among electric utility workers.Epidemiol 1993;4: 104–14.

    Google Scholar 

  13. World Health Organization. International Classification of Diseases, Seventh Revision. Geneva, Switzerland: WHO, 1957.

    Google Scholar 

  14. Rothman KJ.Modern Epidemiology, Boston, MA, USA: Little Brown, 1986.

    Google Scholar 

  15. Minder CE, Pfluger DH. Extremely low frequency electromagnetic field measurements (ELF-EMF) in Swiss railway engines.Radiat Protect Dos 1993;48: 351–4.

    Google Scholar 

  16. Stenlund C, Lindh T, Floderus B, Knave B, Sellman B. Mätning av magnetfält på tåg (Measurements of magnetic fields on trains) (in Swedish). Arbetsmiljöinstitutet, Solna, Sweden. Undersökningsrapport: 1989;10: 1–12.

    Google Scholar 

  17. Cohen M, Lippman M, Chabner B. Role of pineal gland in aetiology and treatment of breast cancer.Lancet 1978;ii: 814–6.

    Google Scholar 

  18. Stevens RG. Electric power use and breast cancer: A hypothesis.Am J Epidemiol 1987;125: 556–61.

    PubMed  Google Scholar 

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The project was funded partially by the National Board of Occupational Safety and Health.

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Floderus, B., Törnqvist, S. & Stenlund, C. Incidence of selected cancers in Swedish railway workers, 1961–79. Cancer Causes Control 5, 189–194 (1994). https://doi.org/10.1007/BF01830265

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  • DOI: https://doi.org/10.1007/BF01830265

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