Prognosis is also worse for overweight women, researchers find
THURSDAY, Dec. 10 (HealthDay News) -- Overeating and drinking even moderate amounts of alcohol may be bad news for women with breast cancer, new research suggests.
Drinking alcohol is already known to boost breast cancer risk, and a new study finds even moderate drinking may increase the odds of breast cancer recurrence. Another study confirms that overweight or obese women with breast cancer have a worse prognosis over time than thinner patients.
In the alcohol study, women who drank six grams or more of alcohol a day -- about half a drink -- had a 34 percent increased risk of recurrence compared to those who drank less, said Marilyn Kwan, staff scientist in the division of research at Kaiser Permanente, Oakland, Calif. She is scheduled to present her findings Thursday at the San Antonio Breast Cancer Symposium.
"Women who drank less than six grams a day had no increased risk of recurrence," Kwan said.
Kwan evaluated data from 1,897 early-stage breast cancer survivors who were diagnosed between 1997 and 2000. They all submitted information on alcohol consumption.
After eight years of follow-up, the researchers found 349 breast cancer recurrences and 332 deaths. For the study, they defined recurrence as including a new cancer in the opposite breast. When they took out the 32 of the 349 recurrences that occurred in the opposite breast, they found the risk slightly lower -- 31 percent, compared to 34 percent, with that finding not reaching statistical significance.
Susan Gapstur, vice president for epidemiology for the American Cancer Society, took issue with the definition of recurrence used for the study.
"With the inclusion of women who experience a new contralateral [opposite breast] cancer, the results of the study do not provide a clear picture of the risk of breast cancer recurrence associated with alcohol
All rights reserved