Asian women who immigrate to U.S. may have higher breast cancer risk, research finds

By Charles Lam

Asian women who immigrate to the United States may have a higher risk of breast cancer than those born here, new preliminary research has found, an apparent shift from historical norms of U.S. women having higher breast cancer rates compared to the rest of the world.

The new study, published online last week in the medical journal Preventing Chronic Disease, found that Asian women who had immigrated to the United States and spent more than half their lives in the U.S.were on average three times as likely to have breast cancer compared to Asian-American women who were born in the U.S. Those who immigrated and spent less than 50 percent of their lives in the U.S. were on average 2.46 times more likely to have breast cancer.

According to study co-author Brittany Morey, a postdoctoral researcher at the University of California, Riverside School of Public Policy, that information was surprising because it was the opposite finding of past studies.