High consumption of red and processed meat over a long period of time is associated with an increased risk for a certain type of colon cancer, according to a study in the January 12 issue of JAMA.
Meat consumption has been associated with colorectal cancer in previous studies, but the strength of the association and types of meat involved have not been consistent, according to background information in the article. Few studies have evaluated long-term meat consumption or the relationship between meat consumption and the risk of rectal cancer. Clarifying the role of meat consumption and any subsequent development of colorectal cancer is important because meat is an integral component of diet in the United States and many other countries in which colorectal cancer is common. Per capita annual consumption of beef has increased in the United States since 1993, reversing a previous decrease since 1976.
Ann Chao, Ph.D., of the American Cancer Society, Atlanta, and colleagues examined the relationship between recent and long-term meat consumption and the risk of colon and rectal cancer. The study included 148,610 adults aged 50 to 74 years, residing in 21 states with population-based cancer registries, who provided information on meat consumption in 1982 and again in 1992/1993 when enrolled in the Cancer Prevention Study II (CPS II) Nutrition Cohort. Follow-up from time of enrollment in 1992/1993 through August 31, 2001, identified 1,667 incident colorectal cancers.
Anne Isenhower | EurekAlert!
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