Objectives: For more than three decades there has been speculation regarding a possible role of zoonotic diseases in the development of human leukaemia. This study investigated the potential relationship between exposure to pets and the development of childhood leukaemia. Methods: Data from 2359 cases of acute leukaemia from two large case-control studies conducted in USA and Canada were analysed. Cases were individually matched to population controls on telephone exchange, age, and race. Conditional logistic regression was used to estimate odds ratios (OR) associated with pet ownership. Results: Overall, there was no association between pet ownership (either "any pet", dog, or cat) and childhood acute leukaemia (ORany pet:=1.01, 95% CI 0.89-1.2). Additionally, no relationship was found between exposure to an ill pet and childhood leukaemia. Conclusion: The results of this analysis suggest that pet ownership (healthy or sick) is unrelated to an increased risk of childhood leukaemia.
|Publication Title||Cancer Causes & Control|
|Author Address||Division of Pediatric Epidemiology and Clinical Research, Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455, USA.|
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