Visit-to-visit body mass index variability in relation to longitudinal cognitive changes in Chinese adults: a retrospective cohort study.

BMC Public Health · 2025 · PMC12487511 · PMID 41029568

Europe PMC DOI

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did not reach statistical significanceno p-value reported

However, among those under 50, BMI variability showed positive associations with the risk of cognitive impairment, but these results did not reach statistical significance.

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an overall trendno p-value reported

In our study, we found that in the oleder group, greater BMI variability—despite an overall trend toward slight weight loss—was associated with a reduced risk of cognitive impairment.

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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.