Cognitive and motor decline in dementia with Lewy bodies and Parkinson's disease dementia

Maria Camila Gonzalez*, Diego Alejandro Tovar-Rios, Guido Alves, Ingvild Dalen, Caroline H. Williams-Gray, Marta Camacho, Lars Forsgren, David Bäckström, Rachael A. Lawson, Angus D. Macleod, Carl E. Counsell, Claire Paquet, Carlo DeLena, Fabrizia D'Antonio, Andrea Pilotto, Alessandro Padovani, Frédéric Blanc, Cristian Falup-Pecurariu, Simon J. G. Lewis, Konrad RejdakEwa Papuc, Jakub Hort, Zuzana Nedelska, John O'Brien, Laura Bonanni, Marta Marquié, Mercè Boada, Vanesa Pytel, Carla Abdelnour, Daniel Alcolea, Katrin Beyer, Ole Bjørn Tysnes, Dag Aarsland, Jodi Maple-Grødem

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)
26 Downloads (Pure)

Abstract

Background: There is a need to better understand the rate of cognitive and motor decline of Dementia with Lewy bodies (DLB) and Parkinson's disease Dementia (PDD). Objectives: To compare the rate of cognitive and motor decline in patients with DLB and PDD from the E-DLB Consortium and the Parkinson's Incidence Cohorts Collaboration (PICC) Cohorts. Methods: The annual change in MMSE and MDS-UPDRS part III was estimated using linear mixed regression models in patients with at least one follow-up (DLB n = 837 and PDD n = 157). Results: When adjusting for confounders, we found no difference in the annual change in MMSE between DLB and PDD (−1.8 [95% CI −2.3, −1.3] vs. −1.9 [95% CI −2.6, −1.2] [P = 0.74]). MDS-UPDRS part III showed nearly identical annual changes (DLB 4.8 [95% CI 2.1, 7.5]) (PDD 4.8 [95% CI 2.7, 6.9], [P = 0.98]). Conclusions: DLB and PDD showed similar rates of cognitive and motor decline. This is relevant for future clinical trial designs.

Original languageEnglish
Pages (from-to)980-986
Number of pages7
JournalMovement Disorders Clinical Practice
Volume10
Issue number6
DOIs
Publication statusPublished - Jun 2023
Externally publishedYes

Bibliographical note

Copyright the Author(s) 2023. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • dementia with Lewy bodies
  • international cohort
  • Parkinson's disease dementia
  • parkinsonism
  • rate of cognitive decline

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