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. 2019 Jul 20;1:13–20. doi: 10.1016/j.prdoa.2019.07.003

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© 2019 The Authors

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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Fig. 1 — Graphical comparison of univariate density estimates for study variables.

(A) UPSIT score. (B) HVLT score. (C) MoCA score. (D) Visuospatial/Executive Subscore. (E) Delayed-Recall Subscore. (F) Attention Subscore. Table cells within each panel are shaded to indicate the P value (white: P ≥ .05, gray: 0.05 > P ≥ .001, black: P < .001) obtained from pairwise nonparametric bootstrap tests of equal densities using 1000 permutations [26].

PPMI-defined diagnostic categories: HC = healthy controls; GENUN = individuals with asymptomatic genetic (LRRK2, SNCA, or GBA) PD; GENPD = individuals with symptomatic genetic PD; SPD = individuals with sporadic PD at baseline; PROD (possible prodromal PD) = individuals diagnosed with hyposmia and/or RBD.