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Epidemiologic studies in agricultural populations: observations and future directions.

Authors
Blair-A; Freeman-LB
Source
J Agromed 2009 Apr; 14(2):125-131
NIOSHTIC No.
20038728
Abstract
This paper reviews epidemiologic studies of cancer among agricultural populations to identify possible associations and to provide a focus for future investigations. Meta-analyses of mortality surveys of farmers find excesses of several cancers, including connective tissue, non-Hodgkin's lymphoma, Hodgkin's disease, multiple myeloma and cancers of the skin, stomach, and brain, and deficits for total mortality, heart disease, total cancer, and cancers of the esophagus, colon, lung, and bladder. Meta-analyses of studies of individual cancers also support these findings, indicating a need to identify exposures and lifestyle factors that might account for this mortality pattern. Although cancer studies of other occupations that might have pesticide exposures in common with farmers show some similarities with observations among farmers, the overall patterns are quite different. This suggests that pesticides are not likely to fully explain the cancer and other disease patterns observed among farmers. Because exposures vary by type of farm operation, exposures for individual farmers can differ considerably. Studies in the future need to focus on the full range of exposures to fully understand the cancer pattern in farmers.
Keywords
Agricultural-industry; Agricultural-workers; Agriculture; Biohazards; Biological-effects; Biological-systems; Carcinogens; Chemical-hypersensitivity; Environmental-exposure; Environmental-hazards; Epidemiology; Exposure-assessment; Farmers; Health-hazards; Mortality-rates; Mortality-surveys; Physical-reactions; Physiological-disorders; Physiological-effects; Physiological-factors; Physiological-response; Risk-analysis; Statistical-analysis; Work-analysis; Work-environment; Worker-health; Work-operations; Workplace-monitoring; Workplace-studies; Work-practices; Author Keywords: Agriculture; cancer; epidemiology
Contact
Aaron Blair, PhD, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Executive Plaza South, Room 8008, Bethesda, MD 20892, USA
Publication Date
20090401
Document Type
Journal Article
Email Address
blaira@ mail.nih.gov
Funding Type
Grant
Fiscal Year
2009
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R13-OH-009571
Issue of Publication
2
ISSN
1059-924X
Source Name
Journal of Agromedicine
State
WI; MD
Performing Organization
Marshfield Clinic
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