Evidence map›Paper›PMID 24616821›Full record

ArticleParkinson's disease2014

Mortality in levodopa-treated Parkinson's disease.

John C Morgan, Lillian J Currie, Madaline B Harrison, James P Bennett, Joel M Trugman, G Frederick Wooten

Abstract read
In one paragraph

Article in Parkinson's disease, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Sex Differences in the Speech of Persons With and Without Parkinson's Disease.American journal of speech-language pathology · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Pharmacological Treatment of Early Motor Manifestations of Parkinson Disease (PD).Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2020
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. 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

6 authors.

John C MorganMovement Disorders Program, Department of Neurology, Medical College of Georgia, Georgia Regents University, 1429 Harper Street HF-1154, Augusta, GA 30912, USA.
Lillian J CurrieMovement Disorders Division, Department of Neurology, University of Virginia, P.O. Box 800394, Charlottesville, VA 22908, USA.
Madaline B HarrisonMovement Disorders Division, Department of Neurology, University of Virginia, P.O. Box 800394, Charlottesville, VA 22908, USA.
James P BennettParkinson's & Movement Disorders Center, Department of Neurology, Virginia Commonwealth University, 6605 West Broad Street, First Floor, Suite C Richmond, VA 23230, USA.
Joel M TrugmanClinical Development, Forest Laboratories, Inc., Jersey City, NJ, USA.
G Frederick WootenMovement Disorders Division, Department of Neurology, University of Virginia, P.O. Box 800394, Charlottesville, VA 22908, USA.

Funding

Proteasomal Dysfunction and Protein Aggregation in PDP50NS039788 · NINDS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI BENNETT, JAMES PEPPER · 1999 to 2009
$10.9M
NINDS NIH HHS P50 NS039788
6 · The paper itself

Abstract

Parkinson's disease (PD) is associated with increased mortality despite many advances in treatment. Following the introduction of levodopa in the late 1960's, many studies reported improved or normalized mortality rates in PD. Despite the remarkable symptomatic benefits provided by levodopa, multiple recent studies have demonstrated that PD patients continue to die at a rate in excess of their peers. We undertook this retrospective study of 211 deceased PD patients to determine the factors associated with mortality in levodopa-treated PD. Our findings confirm that PD is associated with increased mortality in both men and women. Unlike the majority of other mortality studies, we found that women have a greater reduction in lifespan compared to men. We also found that patients with early onset PD (onset at the age of 50 or before) have reduced survival relative to PD patients with later ages of onset. A final important finding is that survival is equal in PD patients treated with levodopa early (within 2 years or less of PD onset) versus later.

Identifiers

PMID24616821
PMCPMC3927757

What OpenQuestion holds

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LicenceCC BY
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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.