A cohort study of dietary iron and heme iron intake and risk of colorectal cancer in women.

Br J Cancer · 2007 · PMC2359661 · PMID 17551493

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a significant trendno p-value reported

However, there was a significant trend over increasing quartiles of iron intake for cancer of the proximal colon (odds ratio for extreme quartiles 3.29; 95% CI: 0.7–14.6; P for trend=0.04).

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an increasing trendno p-value reported

The authors noted an increasing trend in risk of colon cancer in men only with increasing levels of the heme/chlorophyll ratio.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.