Szwedo, Aleksandra A.Dalen, IngvildLawson, Rachael AYarnall, Alison JPedersen, Kenn FreddyMacLeod, AngusCounsell, CarlBäckström, DavidForsgren, LarsCamacho, MartaWilliams-Gray, Caroline H.Tysnes, Ole-BjørnAlves, GuidoMaple-Grødem, JodiParkinson’s Incidence Cohorts Collaboration2025-07-162025-07-162025-06Szwedo, A A, Dalen, I, Lawson, R A, Yarnall, A J, Pedersen, K F, MacLeod, A, Counsell, C, Bäckström, D, Forsgren, L, Camacho, M, Williams-Gray, C H, Tysnes, O-B, Alves, G, Maple-Grødem, J & Parkinson’s Incidence Cohorts Collaboration 2025, 'Dementia Risk Prediction in Early Parkinson's Disease : Validation and Genetic Integration of the Montreal Parkinson risk of dementia scale (MoPaRDS)', Journal of Parkinson's Disease, vol. 15, no. 4, pp. 868-878. https://doi.org/10.1177/1877718X2513298571877-7171ORCID: /0000-0001-6622-7839/work/188340364ORCID: /0000-0002-6284-4239/work/191926826https://hdl.handle.net/2164/25711For the purpose of open access, the author has applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission. We would like to thank all participants, study personnel from each study, and funders of individual studies and of PICC and the contributions of the individual study groups.11190345engParkinson's diseasedementiacognitive dysfunctionrisk factorsgeneticRC0321 Neuroscience. Biological psychiatry. NeuropsychiatryQH426 GeneticsSupplementary DataDASSupplementary InformationRC0321QH426Journal article10.1177/1877718X251329857https://abdn.elsevierpure.com/en/publications/48e4724a-09e9-4cb2-b329-cd2c247e87d8154