The associations between serum brain-derived neurotrophic factor, potential confounders, and cognitive decline: a longitudinal study.

PLoS One · 2014 · PMC3966768 · PMID 24670553

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a slight trendno p-value reported

There was a slight trend toward higher cross-sectional performance on DSST associated with higher BDNF, but it was not significant (p = 0.09).

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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.