A large U.S. study has linked alcohol consumption to an increased risk of the most common type of breast cancer in postmenopausal women.
The analysis of data from more than 184,000 women is the biggest of three major studies to conclude that drinking raises the risk of breast cancer for older women, Jasmine Lew, a researcher at the National Cancer Institute and the study's lead investigator said on Sunday.
The research found that women who had one to two small drinks a day were 32 percent more likely to develop a hormone-sensitive tumor. Three or more drinks a day raised the risk by 51 per cent.
"Regardless of the type of alcohol, the risk was evident," said Lew, presenting the findings here at a meeting of the American Association for Cancer Research.