Adhering to diet and lifestyle recommendations — as rated on a simple lifestyle index — could help reduce colorectal cancer risk, a Danish prospective cohort study suggested.
The study of more than 55,000 people used an index that scored one point each for adherence to five recommendations — physical activity, waist circumference, smoking, alcohol use, and diet — and found that every additional baseline point was associated with an incidence rate ratio of 0.89 (95% CI 0.82 to 0.96) for colorectal cancer, reported Helene Kirkegaard, PhD, of the Danish Cancer Society in Copenhagen.
Moreover, an estimated 23% of cancer cases could have been prevented during a median follow-up of almost ten years, if study participants followed all five of the recommendations, the researchers reported online in BMJ.
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