Parental occupational exposure to low-frequency magnetic fields and risk of leukaemia in the offspring: Findings from the Childhood Leukaemia International Consortium (CLIC)

Madar Talibov, Ann Olsson, Helen Bailey, Friederike Erdmann, Catherine Metayer, Corrado Magnani, Eleni Petridou, Anssi Auvinen, Logan Spector, Jacqueline Clavel, Eve Roman, John Dockerty, Atte Nikkilä, Olli Lohi, Alice Kang, Theodora Psaltopoulou, Lucia Miligi, Javier Vila, Elisabeth Cardis, Joachim Schüz

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Objectives Previously published studies on parental occupational exposure to extremely low-frequency magnetic fields (ELF-MF) and risk of acute lymphoblastic leukaemia (ALL) and acute myeloid leukaemia (AML) in their offspring were inconsistent. We therefore evaluated this question within the Childhood Leukemia International Consortium. Methods We pooled 11 case-control studies including 9723 childhood leukaemia cases and 17 099 controls. Parental occupational ELF-MF exposure was estimated by linking jobs to an ELF-MF job-exposure matrix (JEM). Logistic regression models were used to estimate ORs and 95% CIs in pooled analyses and meta-analyses. Results ORs from pooled analyses for paternal ELF-MF exposure >0.2 microtesla (μT) at conception were 1.04 (95% CI 0.95 to 1.13) for ALL and 1.06 (95% CI 0.87 to 1.29) for AML, compared with ≤0.2 μT. Corresponding ORs for maternal ELF-MF exposure during pregnancy were 1.00 (95% CI 0.89 to 1.12) for ALL and 0.85 (95% CI 0.61 to 1.16) for AML. No trends of increasing ORs with increasing exposure level were evident. Furthermore, no associations were observed in the meta-analyses. Conclusions In this large international dataset applying a comprehensive quantitative JEM, we did not find any associations between parental occupational ELF-MF exposure and childhood leukaemia.

Original languageEnglish (US)
Pages (from-to)746-753
Number of pages8
JournalOccupational and Environmental Medicine
Volume76
Issue number10
DOIs
StatePublished - Oct 1 2019

Keywords

  • acute lymphoblastic leukemia
  • acute myeloid leukemia
  • case-control study
  • elf-mf
  • occupation

PubMed: MeSH publication types

  • Journal Article
  • Meta-Analysis

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  • Cite this

    Talibov, M., Olsson, A., Bailey, H., Erdmann, F., Metayer, C., Magnani, C., Petridou, E., Auvinen, A., Spector, L., Clavel, J., Roman, E., Dockerty, J., Nikkilä, A., Lohi, O., Kang, A., Psaltopoulou, T., Miligi, L., Vila, J., Cardis, E., & Schüz, J. (2019). Parental occupational exposure to low-frequency magnetic fields and risk of leukaemia in the offspring: Findings from the Childhood Leukaemia International Consortium (CLIC). Occupational and Environmental Medicine, 76(10), 746-753. https://doi.org/10.1136/oemed-2019-105706