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MONDAY, Oct. 29, 2018 (HealthDay News) — Colorectal cancer (CRC) patients who follow healthy diets before or after diagnosis have a decreased risk for mortality, according to a study published online Oct. 19 in the Journal of Clinical Oncology<\/i>.<\/p>\n
Mark A. Guinter, Ph.D., M.P.H., from the American Cancer Society in Atlanta, and colleagues evaluated associations of diet quality pre- and post-diagnosis with risk for mortality among men and women with CRC. Data were available for 2,671 participants pre-diagnosis and 1,321 participants post-diagnosis. Diet quality was assessed through adherence to the Dietary Approaches to Stop Hypertension (DASH), American Cancer Society nutrition guidelines (ACS score), prudent diet, and Western dietary patterns.<\/p>\n
The researchers found that pre-diagnosis ACS score was inversely associated with all-cause (hazard ratio high versus low [HRHighvLow<\/sub>], 0.78; 95 percent confidence interval [CI], 0.65 to 0.95) and CRC-specific (HRHighvLow<\/sub>, 0.74; 95 percent CI, 0.54 to 1.03) mortality. The Western diet score was associated with higher all-cause mortality (HRHighvLow<\/sub>, 1.3). The ACS score was associated with a lower risk for all-cause (HRHighvLow<\/sub>, 0.62) and CRC-specific (HRHighvLow<\/sub>, 0.35) mortality post-diagnosis, as were the post-diagnosis DASH score (all-cause: HRHighvLow<\/sub>, 0.79; CRC-specific: HRHighvLow<\/sub>, 0.56) and the prudent score (all-cause mortality: HRHighvLow<\/sub>, 0.72). Among participants with a low diet quality before diagnosis, improvement in DASH (HR, 0.54) and prudent scores (HR, 0.53) was associated with lower CRC-specific mortality.<\/p>\n “Dietary patterns reflective of high intakes of plant foods and low intakes of animal products before and after CRC diagnosis are associated with longer survival,” conclude the authors.<\/p>\n