Being breast-fed may lower breast cancer risk
- added May 12, 2008
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Adult women who were breast-fed as infants may have a lower risk of developing breast cancer than those who were not breast-fed, unless they were first-born, study findings suggest.
"As a general group, women who reported they had been breast-fed in infancy had a 17 percent decrease in breast cancer risk," Hazel B. Nichols, who was involved in the study, told Reuters Health.
"However, we did not observe this reduction when we looked specifically among first-born women," said Nichols, of the University of Wisconsin, in Madison.
A woman's age at childbirth helps predict the levels of environmental contaminants in her breast milk, and studies have suggested a possible link between increased breast cancer risk and the accumulation of these contaminants, Nichols and colleagues note in the medical journal Epidemiology.
"As a general group, women who reported they had been breast-fed in infancy had a 17 percent decrease in breast cancer risk," Hazel B. Nichols, who was involved in the study, told Reuters Health.
"However, we did not observe this reduction when we looked specifically among first-born women," said Nichols, of the University of Wisconsin, in Madison.
A woman's age at childbirth helps predict the levels of environmental contaminants in her breast milk, and studies have suggested a possible link between increased breast cancer risk and the accumulation of these contaminants, Nichols and colleagues note in the medical journal Epidemiology.
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