Evidence map›Paper›PMID 36344548›Full record

ArticleNPJ Parkinson's disease2022

Machine learning-based prediction of cognitive outcomes in de novo Parkinson's disease.

Joshua Harvey, Rick A Reijnders, Rachel Cavill, Annelien Duits, Sebastian Köhler, Lars Eijssen, Bart P F Rutten, Gemma Shireby, Ali Torkamani, Byron Creese and 3 more

Abstract read
In one paragraph

Article in NPJ Parkinson's disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 5 pooled it
–field-weighted citation impact
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Article
  7. Article
  8. Monoaminergic Networks of Cognitive and Behavioral Symptoms in Early Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2026
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Observational
  15. Article
  16. Article
  17. Article
  18. Blood-based multivariate methylation risk score for cognitive impairment and dementia.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  19. Article
  20. Article
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

13 authors.

Joshua Harvey *Medical School, Faculty of Health and Life Sciences, University of Exeter, Exeter, UK.ORCID http://orcid.org/0000-0001-6423-9983
Rick A Reijnders *Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, The Netherlands.ORCID http://orcid.org/0000-0001-7599-0385
Rachel CavillDepartment of Advanced Computing Sciences, FSE, Maastricht University, Maastricht, The Netherlands.ORCID http://orcid.org/0000-0002-3796-1687
Annelien DuitsDepartment of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, The Netherlands.ORCID http://orcid.org/0000-0003-0279-1806
Sebastian KöhlerDepartment of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, The Netherlands.
Lars EijssenDepartment of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, The Netherlands.ORCID http://orcid.org/0000-0002-6473-2839
Bart P F RuttenDepartment of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, The Netherlands.
Gemma ShirebyMedical School, Faculty of Health and Life Sciences, University of Exeter, Exeter, UK.
Ali TorkamaniDepartment of Integrative Structural and Computational Biology, Scripps Research, La Jolla, CA, 92037, USA.
Byron CreeseMedical School, Faculty of Health and Life Sciences, University of Exeter, Exeter, UK.ORCID http://orcid.org/0000-0001-6490-6037
Albert F G LeentjensDepartment of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, The Netherlands.
Katie LunnonMedical School, Faculty of Health and Life Sciences, University of Exeter, Exeter, UK.
Ehsan PishvaMedical School, Faculty of Health and Life Sciences, University of Exeter, Exeter, UK. e.pishva@maastrichtuniversity.nl.ORCID http://orcid.org/0000-0002-8964-0682

Funding

Medical Research Council MR/S011625/1ZonMw (Netherlands Organisation for Health Research and Development) 733050516
6 · The paper itself

Abstract

Cognitive impairment is a debilitating symptom in Parkinson's disease (PD). We aimed to establish an accurate multivariate machine learning (ML) model to predict cognitive outcome in newly diagnosed PD cases from the Parkinson's Progression Markers Initiative (PPMI). Annual cognitive assessments over an 8-year time span were used to define two cognitive outcomes of (i) cognitive impairment, and (ii) dementia conversion. Selected baseline variables were organized into three subsets of clinical, biofluid and genetic/epigenetic measures and tested using four different ML algorithms. Irrespective of the ML algorithm used, the models consisting of the clinical variables performed best and showed better prediction of cognitive impairment outcome over dementia conversion. We observed a marginal improvement in the prediction performance when clinical, biofluid, and epigenetic/genetic variables were all included in one model. Several cerebrospinal fluid measures and an epigenetic marker showed high predictive weighting in multiple models when included alongside clinical variables.

Identifiers

PMID36344548
PMCPMC9640625

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.