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  • Posted: 12/13/2012
NCI Cancer Center News

Fred Hutchinson study suggests delaying childbirth may reduce the risk of an aggressive form of breast cancer in younger women

Younger women who wait at least 15 years after their first menstrual period to give birth to their first child may reduce their risk of an aggressive form of breast cancer by up to 60 percent, according to a Fred Hutchinson Cancer Research Center study. The findings are published online in Breast Cancer Research and Treatment. The study is the first to look at how the interval between first menstrual period and age at first birth is related to the risk of this particular type of breast cancer. It is also the first study to look at the relationship between reproductive factors and breast cancer risk among premenopausal women, who have a higher risk of triple-negative and HER2-overexpressing breast cancer than postmenopausal women.

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