Heritability and clinical determinants of serum indoxyl sulfate and p-cresyl sulfate, candidate biomarkers of the human microbiome enterotype.

PLoS One · 2014 · PMC4029585 · PMID 24850265

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closest p

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highly significantno p-value reported

Figure 2 describes toxin concentrations by decades of age, revealing a highly significant quadratic association between either toxin concentration and age.

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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.