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To prevent fatal cancers, cut back drinking

BOSTON U. (US) — A new study finds that alcohol resulted in approximately 20,000 cancer deaths each year, accounting for about 3.5 percent of all cancer deaths in the US.

These findings, published in the American Journal of Public Health, also show that reducing alcohol consumption is an important cancer prevention strategy because alcohol is a known carcinogen even when consumed in small quantities.

Timothy Naimi, from the Department of Medicine at Boston University School of Medicine, and colleagues examined recent data from the US on alcohol consumption and cancer mortality.

Breast cancer was the most common cause of alcohol-attributable cancer deaths in women, accounting for approximately 6,000 deaths annually, or about 15 percent of all breast cancer deaths. Cancers of the mouth, throat, and esophagus were common causes of alcohol-attributable cancer mortality in men, resulting in a total of about 6,000 annual deaths.

The researchers also found that each alcohol-related cancer death accounted for an average of 18 years of potential life lost. In addition, although higher levels of alcohol consumption led to a higher cancer risk, average consumption of 1.5 drinks per day or less accounted for 30 percent of all alcohol-attributable cancer deaths.

Previous studies consistently have shown that alcohol consumption is a significant risk factor for cancers of the mouth, throat, esophagus, and liver. More recent research has shown that alcohol also increases the risk of cancers of the colon, rectum, and female breast.

While estimates have shown that alcohol accounts for about four percent of all cancer-related deaths worldwide, there is a lack of literature focusing on cancer-related deaths in the US.

“The relationship between alcohol and cancer is strong, but is not widely appreciated by the public and remains underemphasized even by physicians,” says Naimi, who served as the paper’s senior author. “Alcohol is a big preventable cancer risk factor that has been hiding in plain sight.”

Researchers from the National Cancer Institute, the Alcohol Research Group, Public Health Institute, and the Centre for Addiction and Mental Health contributed to the study.

Source: Boston University

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