Evidence map›Paper›PMID 33553493›Full record

ArticleMovement disorders clinical practice2021

Prevalence of Non-Motor Symptoms and Non-Motor Fluctuations in Parkinson's Disease Using the MDS-NMS.

Carmen Rodriguez-Blazquez, Anette Schrag, Alexandra Rizos, K Ray Chaudhuri, Pablo Martinez-Martin, Daniel Weintraub

Open access · bronzeAbstract read
In one paragraph

Article in Movement disorders clinical practice, 2021. 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
2.9field-weighted citation impact, top 7% 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.

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

54 citing papers in PubMed, 2 syntheses or guidelines pooled it, 79 citations in OpenAlex.

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  5. On-demand therapies-emergency medication or daily routine?Journal of neural transmission (Vienna, Austria : 1996) · 2026
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  11. Non-motor fluctuations in Parkinson's disease: frequency and clinical correlate.Journal of neural transmission (Vienna, Austria : 1996) · 2026
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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

6 authors at 5 institutions in 3 countries.

Carmen Rodriguez-BlazquezNational Centre of Epidemiology Carlos III Institute of Health Madrid Spain.ORCID https://orcid.org/0000-0003-3829-0675
Anette SchragUCL Queen Square Institute of Neurology University College London London UK.ORCID https://orcid.org/0000-0002-9872-6680
Alexandra RizosKing's College London, Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience and Parkinson's Foundation Centre of Excellence King's College Hospital London UK.
K Ray ChaudhuriKing's College London, Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience and Parkinson's Foundation Centre of Excellence King's College Hospital London UK.ORCID https://orcid.org/0000-0003-2815-0505
Pablo Martinez-MartinCenter for Networked Biomedical Research in Neurodegenerative Diseases (CIBERNED) Carlos III Institute of Health Madrid Spain.ORCID https://orcid.org/0000-0003-0837-5280
Daniel WeintraubDepartment of Psychiatry and Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia Department of Veterans Affairs Parkinson's Disease Research, Education and Clinical Center (PADRECC) Philadelphia Pennsylvania USA.ORCID https://orcid.org/0000-0003-0633-7168
King's College London · GBBiomedical Research Networking Center on Neurodegenerative Diseases · ESInstituto de Salud Carlos III · ESNational Hospital for Neurology and Neurosurgery · GBUniversity of Pennsylvania · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNon-motor symptoms (NMS) are frequent in Parkinson's disease (PD).

objectivesTo estimate the prevalence of NMS and of non-motor fluctuations (NMF) using the Movement Disorders Society-Non-Motor Rating Scale (MDS-NMS) and other scales assessing NMS, and their relationship with sex and PD severity.

methodsCross-sectional study with a sample of 402 PD patients. The Hoehn and Yahr staging system (HY), Clinical Impression of Severity Index for PD (CISI-PD), MDS-NMS (including NMF- subscale), Non-Motor Symptoms scale (NMSS), and MDS-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) were applied. A NMS was considered present when scored ≥1. Differences in scores by sex and HY, CISI-PD, and MDS-UPDRS severity levels were calculated using Fisher's exact and chi-squared tests.

resultsUsing the MDS-NMS, NMS were present in 99.7% of patients and the mean number of NMS was 16.13 (SD: 9.36). The most prevalent NMS was muscle, joint or back pain (67.4% of the sample) and the least prevalent was dopamine dysregulation syndrome (2.2%). Feeling sad or depressed was significantly more prevalent in women. Using the MDS-NMS revealed more NMS than the other scales assessing NMS. NMF were present in 41% of the sample, with fatigue being the most prevalent symptom (68.5% patients with NMF), and no differences by sex. Patients with greater PD severity had higher prevalence of NMS than patients with lower severity.

conclusionsAlmost all patients with PD experience NMS, and many experience NMF. Prevalence rates for NMS using the MDS-NMS are higher than on other scales used and increase with higher disease severity.

Indexed as

non‐motor symptoms, prevalence, disease severity, MDS‐NMS, NMSS, MDS‐UPDRS

Identifiers

PMID33553493
PMCPMC7853195
OpenAlexW3108519439

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.