Evidence map›Paper›PMID 32602253›Full record

ArticleAnnals of clinical and translational neurology2020

Parkinson disease clinical subtypes: key features & clinical milestones.

Meghan C Campbell, Peter S Myers, Alexandra J Weigand, Erin R Foster, Nigel J Cairns, Joshua J Jackson, Christina N Lessov-Schlaggar, Joel S Perlmutter

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Annals of clinical and translational neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07024875 (Precision Neuroimaging of Parkinson's Disease), which is not on this map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.5field-weighted citation impact, top 8% of its field
1 · What the graph read from it

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.

2 · The registry

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.

NCT07024875 recruitingnot on this mapstarted 2025, after this paper: background citation

Precision Neuroimaging of Parkinson's Disease

Typeobservational_patient_registrySponsorWashington University School of MedicineRan2025 to 2031Enrolled120ConditionsParkinsons Disease (PD)
3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
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  3. LACE-UP: An ensemble machine-learning method for health subtype classification on multidimensional binary data.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
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  9. Prevalence, treatment, and neural correlates of apathy in different forms of dementia: a narrative review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Review
  10. Microglia and Microbiome-Gut-Brain Axis.Advances in neurobiology · 2024
    Review
  11. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 2 countries.

Meghan C CampbellDepartment of Neurology, Washington University School of Medicine, St. Louis, MO.ORCID 0000-0003-3030-9669
Peter S MyersDepartment of Neurology, Washington University School of Medicine, St. Louis, MO.
Alexandra J WeigandDepartment of Psychological and Brain Sciences, Washington University in St. Louis, St. Louis, MO.
Erin R FosterDepartment of Neurology, Washington University School of Medicine, St. Louis, MO.
Nigel J CairnsDepartment of Neurology, Washington University School of Medicine, St. Louis, MO.
Joshua J JacksonDepartment of Psychological and Brain Sciences, Washington University in St. Louis, St. Louis, MO.
Christina N Lessov-SchlaggarDepartment of Psychiatry, Washington University School of Medicine, St. Louis, MO.
Joel S PerlmutterDepartment of Neurology, Washington University School of Medicine, St. Louis, MO.
Washington University in St. Louis · US

Funding

WU INSTITUTE OF CLINICAL AND TRANSLATIONAL SCIENCESUL1TR002345 · NCATS · WASHINGTON UNIVERSITY · PI William G. Powderly · 2017 to 2026
$97.8M
Washington University Institute of Clinical and Translational Sciences (UL1)UL1RR024992 · NCRR · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2007 to 2011
$45.4M
INVESTIGATIONS OF DEMENTIA IN PARKINSON DISEASER01NS075321 · NINDS · WASHINGTON UNIVERSITY · PI CAMPBELL, MEGHAN C, PERLMUTTER, JOEL SYNES · 2011 to 2021
$8.2M
proj 3 - NINDS INSTIUTIONAL CENTER CORE GRANTS TO SUPPORT NEUROSCIENCE RESEARP30NS048056 · NINDS · WASHINGTON UNIVERSITY · PI MARCUS, DANIEL SCOTT · 2004 to 2014
$7.4M
MECHANISMS OF DEEP BRAIN STIMULATIONR01NS041509 · NINDS · WASHINGTON UNIVERSITY · PI PERLMUTTER, JOEL SYNES · 2001 to 2015
$6.8M
VALIDATION OF NEUROIMAGING BIOMARKERS FOR NIGROSTRIATAL NEURONSR01NS058714 · NINDS · WASHINGTON UNIVERSITY · PI PERLMUTTER, JOEL SYNES · 2008 to 2016
$4.4M
Parkinson Disease Clinical Subtypes: Validation, Clinical Utility, and Biological CorrelatesR01NS097437 · NINDS · WASHINGTON UNIVERSITY · PI MEGHAN C CAMPBELL · 2017 to 2026
$4.1M
Investigations of Dementia in Parkinson DiseaseRF1NS075321 · NINDS · WASHINGTON UNIVERSITY · PI CAMPBELL, MEGHAN C, PERLMUTTER, JOEL SYNES · 2023 to 2023
$2.3M
Neurodegenerative consequences of PanK2 mutationsK08NS048924 · NINDS · WASHINGTON UNIVERSITY · PI KOTZBAUER, PAUL T · 2004 to 2008
$878k
NCATS NIH HHS UL1 TR002345NCRR NIH HHS UL1 RR024992NINDS NIH HHS K08 NS048924NINDS NIH HHS NS058714NINDS NIH HHS NS075321NINDS NIH HHS NS097437NINDS NIH HHS NS41509NINDS NIH HHS NS48924NINDS NIH HHS P30 NS048056NINDS NIH HHS R01 NS041509NINDS NIH HHS R01 NS058714NINDS NIH HHS R01 NS075321NINDS NIH HHS R01 NS097437NINDS NIH HHS RF1 NS075321
6 · The paper itself

Abstract

objectivesBased on multi-domain classification of Parkinson disease (PD) subtypes, we sought to determine the key features that best differentiate subtypes and the utility of PD subtypes to predict clinical milestones.

methodsProspective cohort of 162 PD participants with ongoing, longitudinal follow-up. Latent class analysis (LCA) delineated subtypes based on score patterns across baseline motor, cognitive, and psychiatric measures. Discriminant analyses identified key features that distinguish subtypes at baseline. Cox regression models tested PD subtype differences in longitudinal conversion to clinical milestones, including deep brain stimulation (DBS), dementia, and mortality.

resultsLCA identified distinct subtypes: "motor only" (N = 63) characterized by primary motor deficits; "psychiatric & motor" (N = 17) characterized by prominent psychiatric symptoms and moderate motor deficits; "cognitive & motor" (N = 82) characterized by impaired cognition and moderate motor deficits. Depression, executive function, and apathy best discriminated subtypes. Since enrollment, 22 had DBS, 48 developed dementia, and 46 have died. Although there were no subtype differences in rate of DBS, dementia occurred at a higher rate in the "cognitive & motor" subtype. Surprisingly, mortality risk was similarly elevated for both "cognitive & motor" and "psychiatric & motor" subtypes compared to the "motor only" subtype (relative risk = 3.15, 2.60).

interpretationPsychiatric and cognitive features, rather than motor deficits, distinguish clinical PD subtypes and predict greater risk of subsequent dementia and mortality. These results emphasize the value of multi-domain assessments to better characterize clinical variability in PD. Further, differences in dementia and mortality rates demonstrate the prognostic utility of PD subtypes.

Indexed as

AgedApathyCognitive DysfunctionDeep Brain StimulationDementiaDepressionExecutive FunctionFemaleHumansLongitudinal StudiesMaleMiddle AgedParkinson Disease

Identifiers

PMID32602253
PMCPMC7448190
OpenAlexW3039100759

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.