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Breast Cancer in Young Women

The rate of advanced breast cancer for American women aged betweeb 25 and 39 has almost doubled from 1976 to 2009, a new study finds.

The study involved examination of decades’ worth of data from the National Cancer Institute. It was found that the number of younger women with advanced breast cancer has increased about 2% each year since the mid-1970s.

The study found that in 1976, 1.53 out of every 100,000 American women 25 to 39 years old was diagnosed with advanced breast cancer. By 2009, the rate had almost doubled to 2.9 per 100,000 women in that age group.

Survival rates for young women with metastatic breast cancer are much lower than they are for older women, because the cancer tends to behave more aggressively in the young.

About 7% of all breast cancers diagnosed in the United States involve women younger than 40, and on average, 1 in 173 women in this age group risks developing some type of breast cancer.

Though it is not conclusively proven, risk factors such as obesity, sedentary lifestyle and high caloric intake may be to blame.

The results of the study were published in the Journal of the American Medical Assn.

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