Observational studyNeurology2024
Long-Term Dementia Risk in Parkinson Disease.
Abstract readMulticenter StudyObservational Study
In one paragraph
Observational study in Neurology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 2 of them syntheses that pooled it.
0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 2 pooled it
–field-weighted citation impact
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
54 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Enteral Nutrition in Idiopathic Parkinson's Disease and Atypical Parkinsonism: A Systematic Review.Movement disorders clinical practice · 2026Pooled it
- Prognosis in Parkinson's Disease: An Individual Patient Data Meta-Analysis of Six European Incidence Cohorts.Movement disorders : official journal of the Movement Disorder Society · 2026Pooled it
- Cognitive training and promoting a healthy lifestyle in isolated REM sleep behavior disorder: The randomized controlled trial CogTrAiL-RBD.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Trial
- Priorities to Improve Caregiving Experiences in Parkinson Disease: A Qualitative Study of Multiple Stakeholders.Neurology. Clinical practice · 2026Article
- Co- and multipathologies need serious consideration for understanding Parkinson's disease pathogenesis and designing novel experimental therapeutic strategies.Journal of Parkinson's disease · 2026Article
- Dopamine DNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026Article
- Parkinson's Disease: Pathophysiology, Treatment Strategies, Wellness Approaches, and Obstacles/Paths Forward.NeuroSci · 2026Review
- Alzheimer's Biomarkers and Visuospatial Cognition in Parkinson's Disease: Modification by α-Synuclein and Mediation of Age Effects.Movement disorders clinical practice · 2026Article
- Neuropathology in genetic Parkinson's disease: a focused review of pathological and clinical findings.Journal of neural transmission (Vienna, Austria : 1996) · 2026Review
- Article
- Volume Alterations in Thalamic Subnuclei in Parkinson's Disease Dementia and Machine Learning-Based Prediction of Diagnosis and Severity.Brain and behavior · 2026Article
- Epigenetic Aging Clocks Associate with Cognitive Status but Not Cognitive Decline: Evidence from the Parkinson's Progression Markers Initiative.medRxiv : the preprint server for health sciences · 2026Article
- Tracking Motor Progression and Device-Aided Therapy Eligibility in Parkinson's Disease.Annals of clinical and translational neurology · 2026Article
- [Research progress on intelligent brain age prediction methods in diagnosis of Parkinson's disease].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2026Review
- Preventing Parkinson's disease in the context of movement disorders: a narrative review of current evidence and future directions.Neurological research and practice · 2026Review
- Clinical and Biological Determinants of Longitudinal Cognitive Function in Patients With GBA1 Variants and Subthalamic Deep Brain Stimulation.Annals of neurology · 2026Article
- Article
- Altered cerebrovascular haemodynamics in Parkinson's disease: Insights from 4D flow MRI.NPJ Parkinson's disease · 2026Article
- The interplay between GBA1 status and age of onset on cognitive, motor and non-motor outcomes in Parkinson's disease: multicenter cross-sectional study.Journal of neurology · 2026Article
- Characteristics and mechanisms of cognitive impairment in Parkinson disease.Nature reviews. Neurology · 2026Review
Corrections and comments
- Commented on by
Authors and funding
26 authors.
Julia GallagherFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.
Caroline GochanourFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.
Chelsea Caspell-GarciaFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0002-0933-1039
Roseanne D DobkinFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.
Dag AarslandFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0001-6314-216X
Roy N AlcalayFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0002-5717-4875
Matthew J BarrettFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0003-4480-0221
Lana ChahineFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0003-2521-7196
Alice S Chen-PlotkinFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0002-3387-2038
Christopher S CoffeyFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0002-8130-5484
Nabila DahodwalaFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0003-3659-0244
Jamie L EberlingFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.
Alberto J EspayFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0002-3389-136X
James B LeverenzFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0002-0896-0749
Irene LitvanFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0002-3485-3445
Eugenia MamikonyanFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.
James MorleyFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.
Irene H RichardFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.
Liana RosenthalFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0001-5140-3967
Andrew D SiderowfFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0002-1750-7698
Tatyana SimuniFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0002-2347-1644
Michele K YorkFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0003-4056-0742
Allison W WillisFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0001-5724-7192
Sharon X XieFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0002-7886-4103
Daniel WeintraubFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.ORCID 0000-0003-0633-7168
Parkinson's Progression Markers InitiativeFrom the Departments of Neurology (J.G., A.S.C.-P., N.D., J.M., A.D.S., A.W.W., D.W.) and Psychiatry (E.M., D.W.), and Biostatistics and Epidemiology (S.X.X.), University of Pennsylvania, Philadelphia; Department of Biostatistics (C.G., C.C.-G., C.S.C.), University of Iowa; Department of Psychiatry (R.D.D.), Rutgers University, Newark, NJ; Department of Old Age Psychiatry (D.A.), Kings College London, UK; Neurological Institute (R.N.A.), Tel Aviv Sourasky Medical Center, Israel; Department of Neurology (R.N.A.), Columbia University Irving Medical Center, New York, NY; Department of Neurology (M.J.B.), Virginia Commonwealth University, Richmond, VA; Department of Neurology (L.C.), University of Pittsburgh, PA; The Michael J. Fox Foundation for Parkinson's Research (J.L.E.), New York, NY; James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders (A.J.E.), Department of Neurology, University of Cincinnati; Cleveland Clinic (J.B.L.), Neurological Institute, Lou Ruvo Center for Brain Health, OH; Department of Neuroscience (I.L.), University of California San Diego; Parkinson's Disease Research, Education and Clinical Center (PADRECC) (J.M., D.W.), Crescenz Veteran's Affairs Medical Center, Philadelphia, PA; Department of Neurology (I.H.R.), University of Rochester, NY; Department of Neurology (L.R.), Johns Hopkins University, Baltimore, MD; and Department of Neurology (T.S.), Northwestern University, Chicago, IL; Departments of Neurology and Psychiatry and Behavioral Sciences (M.K.Y.), Baylor College of Medicine, Houston, TX.
Funding
Research Education ComponentP30AG072979 · NIA · UNIVERSITY OF PENNSYLVANIA · PI DAVID A WOLK · 2021 to 2026
$24.8MProject IV: In Vivo Dissection of Genetic Modifiers on Different Stages of SynucleinopathyP01AG084497 · NIA · UNIVERSITY OF PENNSYLVANIA · PI DANIEL WEINTRAUB · 2024 to 2026
$15.2MBiomarkers of cognitive decline in Parkinson's DiseaseR01NS115139 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI CHEN-PLOTKIN, ALICE S · 2019 to 2023
$3.6MUnderstanding biomarkers of cognitive decline in Lewy body diseasesR37NS115139 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI ALICE S CHEN-PLOTKIN · 2024 to 2026
$2.2MMidcareer Development Award in Neuroaging and Geriatric Pharmacoepidemiology ResearchK24AG075234 · NIA · UNIVERSITY OF PENNSYLVANIA · PI Allison Willis · 2022 to 2026
$808kDevelopment and characterization of EEG signature of cognitive fluctuations in Lewy body dementiaR21AG077469 · NIA · VIRGINIA COMMONWEALTH UNIVERSITY · PI BARRETT, MATTHEW JAMES, MUKHOPADHYAY, NITAI D. · 2022 to 2022
$427kNIA NIH HHS K24 AG075234NIA NIH HHS P01 AG084497NIA NIH HHS P30 AG072979NIA NIH HHS R21 AG077469NINDS NIH HHS R01 NS115139NINDS NIH HHS R37 NS115139
Abstract
BACKGROUND AND
objectivesIt is widely cited that dementia occurs in up to 80% of patients with Parkinson disease (PD), but studies reporting such high rates were published over two decades ago, had relatively small samples, and had other limitations. We aimed to determine long-term dementia risk in PD using data from two large, ongoing, prospective, observational studies.
methodsParticipants from the Parkinson's Progression Markers Initiative (PPMI), a multisite international study, and a long-standing PD research cohort at the University of Pennsylvania (Penn), a single site study at a tertiary movement disorders center, were recruited. PPMI enrolled de novo, untreated PD participants and Penn a convenience cohort from a large clinical center. For PPMI, a cognitive battery is administered annually, and a site investigator makes a cognitive diagnosis. At Penn, a comprehensive cognitive battery is administered either annually or biennially, and a cognitive diagnosis is made by expert consensus. Interval-censored survival curves were fit for time from PD diagnosis to stable dementia diagnosis for each cohort, using cognitive diagnosis of dementia as the primary end point and Montreal Cognitive Assessment (MoCA) score <21 and Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part I cognition score ≥3 as secondary end points for PPMI. In addition, estimated dementia probability by PD disease duration was tabulated for each study and end point.
resultsFor the PPMI cohort, 417 participants with PD (mean age 61.6 years, 65% male) were followed, with an estimated probability of dementia at year 10 disease duration of 9% (site investigator diagnosis), 15% (MoCA), or 12% (MDS-UPDRS Part I cognition). For the Penn cohort, 389 participants with PD (mean age 69.3 years, 67% male) were followed, with 184 participants (47% of cohort) eventually diagnosed with dementia. The interval-censored curve for the Penn cohort had a median time to dementia of 15 years (95% CI 13-15); the estimated probability of dementia was 27% at 10 years of disease duration, 50% at 15 years, and 74% at 20 years. DISCUSSION: Results from two large, prospective studies suggest that dementia in PD occurs less frequently, or later in the disease course, than previous research studies have reported.
Indexed as
DementiaParkinson DiseaseAgedCohort StudiesDisease ProgressionFemaleHumansMaleMental Status and Dementia TestsMiddle AgedNeuropsychological TestsProspective StudiesRisk Factors
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