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Drink Up, Boost Pancreatic Cancer Risk?

Two or More Alcoholic Drinks Daily May Raise Pancreatic Cancer Risk, Study Shows
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WebMD Health News
Reviewed by Louise Chang, MD

March 3, 2009 -- Two alcoholic drinks a day could boost your risk of pancreatic cancer, according to a new study that reanalyzed the results of 14 previously published studies.

"We saw a 22% higher risk of pancreatic cancer in those who drank two or more alcoholic beverages a day compared to nondrinkers," says study researcher Jeanine M. Genkinger, PhD, an assistant professor of oncology at the Lombardi Comprehensive Cancer Center at Georgetown University, Washington, D.C. That risk is termed ''modest'' by Genkinger and her co-researchers.

Pancreatic cancer, often deadly because it is difficult to diagnose early, was found in nearly 38,000 people in the U.S. in 2008, according to the American Cancer Society. An estimated 6% of U.S. cancer deaths in 2008 were attributed to pancreatic cancer in both men and women.

Two recent high-profile patients include actor Patrick Swayze and Supreme Court Justice Ruth Bader Ginsburg.

Alcohol and Pancreatic Cancer: Study Details

Research about alcohol intake as a risk factor for pancreatic cancer has produced conflicting findings. Heavy alcohol intake has been linked to both chronic inflammation of the pancreas (pancreatitis) and type 2 diabetes, both associated with an increased pancreatic cancer risk. But studies about alcohol intake haven't been clear.

So, Genkinger and her colleagues pooled the results of the 14 previously published research studies on alcohol intake and pancreatic cancer that included nearly 863,000 men and women, with data available about their dietary habits before the cancer diagnosis.

In the study sample, 2,187 men and women were diagnosed with pancreatic cancer.

First, Genkinger's team looked at men and women together, finding the 22% increase in risk for two or more drinks a day. One drink went by the standard definitions -- 12 ounces of beer, 4 ounces of wine, or 1.5 ounces of 80-proof liquor.

"When we looked at men and women separately, the women who drank two or more a day had a 41% increased risk compared to nondrinkers," Genkinger says. "That was statistically significant."

Men who drank two or more drinks a day had a 12% increased risk compared to nondrinkers, which was not statistically significant. So they looked further.

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