A study was conducted on the risk of chronic lymphocytic leukemia (CLL) and nonHodgkin's lymphoma (NHL) among animal breeding workers. Three variables significantly associated with cancer CLL or NHL cases were altitude of residence, family history of hemolymphopoietic cancer, and previous infection with Herpes-zoster. Analysis of three main occupational categories, farmers involved only in agricultural activities, farmers also involved in animal breeding, and all other occupations, indicated an increased risk of cancer for farmer/breeders. Significantly high odds ratios for the farmer/breeders were concentrated in CLLs and low grade NHLs. The authors conclude that farm workers involved in animal breeding are at high risk for development of NHL and/or CLLs which may be related to occupational chemical exposures or exposure to animal transmitted diseases.
Occupational and Environmental Medicine, 52(6):374-379, 1995. (38 references)
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