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Cancer Epidemiol. 2013 Jun;37(3):300-5. doi: 10.1016/j.canep.2013.01.008. Epub 2013 Feb 9.

Multiple myeloma and occupation: a pooled analysis by the International Multiple Myeloma Consortium.

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  • 1Family and Community Medicine Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.

Abstract

OBJECTIVE:

We investigated occupational risk of multiple myeloma (MM) in a pooled analysis of five international case-control studies.

METHODS:

We calculated the odds ratio and its 95% confidence interval for selected occupations with unconditional regression analysis in 1959 MM cases and 6192 controls, by pooling study-specific risks using random-effects meta-analysis. Exposure to organic solvents was assessed with a job-exposure matrix (JEM).

RESULTS:

Gardeners and nursery workers combined, most likely exposed to pesticides, showed a 50% increase in risk (OR = 1.50, 95% CI 0.9-2.3), while other farming jobs did not. Metal processors (OR = 1.55, 95% CI 0.9-2.3), female cleaners (OR = 1.32, 95% CI 1.0-1.8), and high level exposure to organic solvents (OR = 1.38, 95% CI 0.96-1.8) also showed moderately increased risks.

CONCLUSIONS:

Additional case-control studies of MM aetiology are warranted to further investigate the nature of the repeatedly reported increase in MM risk in several occupational groups.

Copyright © 2013 Elsevier Ltd. All rights reserved.

PMID:
23403129
[PubMed - indexed for MEDLINE]
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