Evidence map›Paper›PMID 39349513›Full record

ArticleNPJ Parkinson's disease2024

A systematic review and meta-analysis of the prevalence of Parkinson's disease in lower to upper-middle-income countries.

Gabriela Magalhães Pereira, Daniel Teixeira-Dos-Santos, Nayron Medeiros Soares, Gabriel Alves Marconi, Deise Cristine Friedrich, Paula Saffie Awad, Bruno Lopes Santos-Lobato, Pedro Renato P Brandão, Alastair J Noyce, Connie Marras and 3 more

Abstract read
In one paragraph

Article in NPJ Parkinson's disease, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 2 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

36 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  17. Treatment of Parkinson's Disease-Related Psychosis.Clinical pharmacology : advances and applications · 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

13 authors.

Gabriela Magalhães Pereira *Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.ORCID http://orcid.org/0000-0003-0284-6678
Daniel Teixeira-Dos-Santos *Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil.
Nayron Medeiros SoaresPrograma de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.ORCID http://orcid.org/0000-0001-7830-8775
Gabriel Alves MarconiPrograma de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
Deise Cristine FriedrichHospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil.
Paula Saffie AwadPrograma de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.ORCID http://orcid.org/0000-0002-8056-365X
Bruno Lopes Santos-LobatoLaboratório de Neuropatologia Experimental, Universidade Federal do Pará, Belém, PA, Brazil.ORCID http://orcid.org/0000-0001-9321-5710
Pedro Renato P BrandãoUnidade de Neurologia do Hospital Sírio-Libanês (Brasília), Brasília, DF, Brazil.ORCID http://orcid.org/0000-0002-1191-2078
Alastair J NoyceCentre for Preventive Neurology, Wolfson Institute of Population Health, Queen Mary University of London, London, UK.ORCID http://orcid.org/0000-0003-3027-5497
Connie MarrasThe Edmond J Safra Program in Parkinson's disease, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada.
Ignacio F MataGenomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.ORCID http://orcid.org/0000-0003-1198-0633
Carlos Roberto de Mello RiederUniversidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil.
Artur Francisco Schumacher SchuhPrograma de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil. aschuh@hcpa.edu.br.ORCID http://orcid.org/0000-0002-8722-0908

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parkinson's disease (PD) is a common neurodegenerative disease that is a growing public health challenge. Estimates of the burden of PD have focused on data from high-income countries, with lower-income countries poorly described. We reviewed and examined the prevalence of PD reported by studies in low- to upper-middle-income countries. A systematic literature search was performed in the Medline/PubMed, Embase, LILACS, and Web of Science databases. Age group, sex, and geographic region were considered when analyzing the data. Of the 4327 assessed articles, 57 met the inclusion criteria for qualitative review, and 36 were included in the meta-analysis. Heterogeneity measures were high both as a whole and in each geographic region. Data analysis by geographic region showed that reported prevalence differed across regions, ranging from 49 per 100,000 (Sub-Saharan Africa) to 1081 per 100,000 (Latin America and the Caribbean). There was an increasing prevalence of PD with advancing age (per 100,000): 7 in 40-49 years, 158 in 50-59 years, 603 in 60-69 years, 1251 in 70-79 years, and 2181 in over the age of 80. The prevalence of PD in men and women was similar. There was a greater PD prevalence in populations with a higher 5-year GDP per capita and a higher life expectancy. Our findings suggest a higher prevalence of PD in lower and upper-middle-income countries than previously reported. Comparisons between regions are difficult, as the sociocultural differences and lack of methodological standardization hinder understanding key epidemiological data in varied populations.

Identifiers

PMID39349513
PMCPMC11442769

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LicenceCC BY-NC-ND
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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.