(20-07-10) Dietary patterns and the risk of colorectal cancer and adenomas.

Randi G, Edefonti V, Ferraroni M, La Vecchia C, Decarli A.

Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy.
Abstract
The association of colorectal cancer risk with select foods has been evaluated
by dietary pattern analysis. This review of the literature was conducted to
thoroughly examine the available evidence for the association between dietary
patterns and colorectal cancers and adenomas. A total of 32 articles based on
worldwide epidemiological studies were identified. Pattern identification was
achieved by exploratory data analyses (principal component, factor, and cluster
analyses) in most articles, and only a few used a priori-defined scores.
Dietary patterns named as healthy, prudent, fruit and vegetables, fat-
reduced/diet foods, vegetable/fish/poultry, fruit/whole grain/dairy, and
healthy eating index-2005, recommended food and Mediterranean diet scores were
all associated with reduced risk of colorectal cancer and the risk estimates
varied from 0.45 to 0.90. In contrast, diets named Western, pork-processed meat-
potatoes, meat-eaters, meat and potatoes, traditional patterns, and dietary
risk and life summary scores were associated with increased risk of colorectal
cancer with risk estimates varying from 1.18 to 11.7. Dietary patterns for
adenomas were consistent with those identified for colorectal cancer.


Source: Nutr Rev. 2010 Jul;68(7):389-408.

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