Breast-feeding and Wilms Tumor: A Report from the Children’s Oncology Group
- Stephanie SaddlemireAffiliated withDepartment of Epidemiology, University of North Carolina
- , Andrew F. OlshanAffiliated withDepartment of Epidemiology, University of North Carolina Email author
- , Julie L. DanielsAffiliated withDepartment of Epidemiology, University of North Carolina
- , Norman E. BreslowAffiliated withDepartment of Biostatistics, University of Washington
- , Greta R. BuninAffiliated withDivision of Oncology, Children’s Hospital of Philadelphia, University of Pennsylvania School of Medicine
- , Julie A. RossAffiliated withDepartment of Pediatrics, University of Minnesota
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Previous research has shown that breast-feeding offers many nutritional benefits to children including protection against infection and possibly a decreased risk of childhood cancer. We investigated the association between breast-feeding and Wilms tumor, a childhood kidney tumor.
We used data from a large case-control study in the United States and Canada. Cases were children under age 16 years who were diagnosed with Wilms tumor from 1999 to 2002 and were participating in the National Wilms Tumor Study. Controls were identified by random-digit dialing and were age and region matched to cases. Mothers of 501 cases and 480 controls provided information on breast-feeding by telephone interviews.
Breast-feeding was associated with a reduced risk of Wilms tumor [adjusted odds ratio (OR) = 0.7; 95% confidence interval (CI) = 0.5–0.9]. Longer duration did not provide any additional reduction in risk. When stratified by maternal education, breast-feeding lowered risk among children whose mothers had less than a college education (OR = 0.6; 95% CI = 0.4–0.8) but not for mothers who had a college degree or more (OR = 1.1; 95% CI = 0.6–1.9).
The results of this study are suggestive of an association between breast-feeding and Wilms tumor, but further research is needed to confirm this relationship.
KeywordsWilms tumor Epidemiology Breast-feeding Infant
- Breast-feeding and Wilms Tumor: A Report from the Children’s Oncology Group
Cancer Causes & Control
Volume 17, Issue 5 , pp 687-693
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- Kluwer Academic Publishers
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- Wilms tumor
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- Author Affiliations
- 1. Department of Epidemiology, University of North Carolina, CB#7435, Chapel Hill, NC, 27599-7435, USA
- 2. Department of Biostatistics, University of Washington, Seattle, WA, 98195-7232, USA
- 3. Division of Oncology, Children’s Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
- 4. Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA