The functional gait deviation index.

J Appl Stat · 2026 · PMC12954805 · PMID 41783279

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an increasing trendno p-value reported

The scaled FGDI aligns well with the Hoehn and Yahr scale, it also effectively distinguishes between individuals classified as freezers or non-freezers and shows an increasing trend relative to Parts II and III of the MDS-UPDRS.

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