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Article

Variability in Hourly Activity Levels: Statistical Noise or Insight Into Older Adult Frailty?

The journals of gerontology. Series A, Biological sciences and medical sciences - 13 Aug 2021

Huisingh-Scheetz Megan, Wroblewski Kristen, Waite Linda, Huang Elbert S, Schumm L Philip, Hedeker Donald

Abstract excerpt

BACKGROUND: Frailty is associated with lower mean activity; however, hourly activity is highly variable among older individuals. We aimed to relate frailty to hourly activity variance beyond frailty's association with mean activity. METHOD: Using the 2010-2011 National Social Life, Health and Aging Project wrist accelerometry data (n = 647), we employed a mixed-effects location scale model to simultaneously...

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Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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Identifiers

PMID: 33049032
DOI: 10.1093/gerona/glaa262
PMCID: PMC8521748

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