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Breast cancer: Weight protective until age 35
Tuesday, March 30, 2004 5:00 am Email this article
Overweight increases the risk of breast cancer in postmenopausal women, but decreases the risk in premenopausal women according to a number of studies.
However, the protective effect of increasing weight seems to be limited to younger women ages 35-years-old or younger says a new epidemiological study.
Comparing the heaviest one-fifth of women to the lightest one-fifth revealed that between the ages of 21- to 35-years-old the risk of breast cancer was reduced 61 percent, but from the age of 36- to 45-years-old the risk was increased 50 percent.
The protective effect of increasing weight against breast cancer seems to be limited to women ages 35-years-old or younger.
The study involved women from three counties in Washington state.
Peacock SL; White E; Daling JR; Voigt LF; Malone KE. Relation between obesity and breast cancer in young women. American Journal of Epidemiology, 1999 Feb 15, 149(4):339-46.
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