Statins, a class of drugs that lower blood cholesterol, halve the risk of breast cancer in women.

This was the finding of Dr Vikas Khurana, assistant professor of medicine at Louisiana State University Health Science Center at Shreveport and senior author of the study. The investigation compared statin use between 556 women with a history of breast cancer and 39,865 women without the disease who served as controls. All women were female veterans in the South Central United States. Data were gathered between October 1998 and June 2004. After controlling for age, smoking, alcohol use and diabetes, the risk of breast cancer was 51% lower for statin users than for non-users. The median age was 56 years . Of these women 4771 (11.8%) were on statins. Breast cancer was seen in 556 (1.38)%) women in total. Statin users were less likely to develop breast cancer (odds ratio 0.49; P=

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