Advanced Breast Cancer Triples Among Young Women in Study
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Cases of advanced breast cancer among women younger than 40 have tripled in the U.S. over the last three decades, a trend that researchers said has “been increasing at a steady or even accelerating rate.”
Advanced breast cancer in women ages 25 to 39 rose to 2.9 cases for every 100,000 women in 2009 from 1.53 per 100,000 in 1976, a small though statistically significant increase, according to a study published in the Journal of the American Medical Association. Applying the findings to the U.S. population showed that more than 800 cases of advanced breast cancer occurred in this age group in 2009 from 250 in 1976.