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Could a Few Beers a Week Cut a Woman's RA Risk?

Study finds the brew is helpful, but drinking too much is never warranted, experts say
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WebMD News from HealthDay

By Kathleen Doheny

HealthDay Reporter

WEDNESDAY, May 7, 2014 (HealthDay News) -- Having a beer a few times a week might help women avoid painful rheumatoid arthritis, a new study suggests.

The disease, which affects women more than men, is a form of arthritis linked to immune system dysfunction. According to the Arthritis Foundation, over 1.5 million Americans suffer from the disease, which typically begins in the 20s or 30s.

However, "long-term, moderate alcohol drinking may reduce future rheumatoid arthritis development" in women, said lead researcher Dr. Bing Lu, an assistant professor of medicine at Brigham and Women's Hospital and Harvard Medical School, in Boston.

Overall, moderate use of any form of alcohol reduced the risk by about 21 percent, but moderate beer drinking -- two to four beers per week -- cut women's odds for the disease by nearly a third, the study found.

The findings are published in the spring 2014 issue of Arthritis & Rheumatism.

In their research, Lu's group tracked the drinking habits of women in two large studies, the Nurses' Health Study and the Nurses' Health Study II. The first study began in 1976, and includes more than 121,000 registered nurses. The second includes more than 116,00 nurses, and started in 1989. Women answered questions about their health and lifestyle every two years and about diet, including alcohol consumption, every four years.

Long-term moderate alcohol drinking appeared to reduce the risk of getting rheumatoid arthritis, Lu said. But drinking a few beers per week seemed to have the best effect, providing a 31 percent reduction in risk.

Lu said his team can't yet explain how beer and other alcohol might reduce a woman's risk for rheumatoid arthritis. He also doesn't know if the findings would apply to men. "We don't know for men," Lu said, "but rheumatoid arthritis is primarily a woman's disease."

The new study does echo some previous research, noted one expert, Dr. Len Horovitz, an internist at Lenox Hill Hospital in New York City.

"There is a correlation between alcohol and a reduced risk of rheumatoid arthritis over time," he said, citing other studies. However, that doesn't mean that one necessarily leads to the other -- "there is a correlation [shown here], not cause and effect," Horovitz said.

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