Evidence map›Paper›PMID 35538502›Full record

ArticleAlzheimer's research & therapy2022

The course of primary progressive aphasia diagnosis: a cross-sectional study.

A Mouton, A Plonka, R Fabre, T M Tran, P Robert, J Macoir, V Manera, A Gros

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03687112 (National Bank Alzheimer), which is not on this map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% 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.

NCT03687112 completednot on this map

National Bank Alzheimer

TypeobservationalSponsorCentre Hospitalier Universitaire de NiceRan2010 to 2016Enrolled167,191ConditionsAlzheimer DiseaseArmsnon ontervention / observational study
3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Empathy in primary progressive aphasia: Neural signatures and longitudinal trajectories.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  5. Non-fluent agrammatic variant of primary progressive aphasia in a bilingual Mandarin/English speaker: a case report.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2026
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Time to diagnosis in FTLD-associated syndromes in Latin America.Alzheimer's & dementia (Amsterdam, Netherlands)
    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

8 authors at 5 institutions in 2 countries.

A MoutonCentre Hospitalier Universitaire de Nice, Laboratoire CoBTeK, Service Clinique Gériatrique du Cerveau et du Mouvement, Université Côte d'Azur, Nice, France.
A PlonkaCentre Hospitalier Universitaire de Nice, Laboratoire CoBTeK, Service Clinique Gériatrique du Cerveau et du Mouvement, Université Côte d'Azur, Nice, France.
R FabreCentre Hospitalier Universitaire de Nice, Laboratoire CoBTeK, Service Clinique Gériatrique du Cerveau et du Mouvement, Université Côte d'Azur, Nice, France.
T M TranLaboratoire STL, UMR 8163, Université de Lille, Lille, France.
P RobertCentre Hospitalier Universitaire de Nice, Laboratoire CoBTeK, Service Clinique Gériatrique du Cerveau et du Mouvement, Université Côte d'Azur, Nice, France.
J MacoirDepartment of rehabilitation, Faculty of Medicine, Laval University, Quebec, Canada.
V ManeraFaculté de Médecine de Nice, Département d'Orthophonie, Université Côte d'Azur, Nice, France.
A GrosCentre Hospitalier Universitaire de Nice, Laboratoire CoBTeK, Service Clinique Gériatrique du Cerveau et du Mouvement, Université Côte d'Azur, Nice, France. auriane.gros@univ-cotedazur.fr.
Centre Hospitalier Universitaire de Nice · FRUniversité Côte d'Azur · FRCognition Behaviour Technology · FRUniversité de Lille · FRUniversité Laval · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe primary progressive aphasia (PPA) diagnosis trajectory is debated, as several changes in diagnosis occur during PPA course, due to phenotype evolution from isolated language alterations to global cognitive impairment. The goal of the present study, based on a French cohort, was to describe the demographics and the evolution of subjects with (PPA) in comparison with Alzheimer's disease (AD) on a period of 7 years.

methodsWe conducted a repeated cross-sectional study. The study population comprised individuals with PPA and AD diagnosis (N=167,191) from 2010 to 2016 in the French National data Bank (BNA). Demographic variables, MMSE scores, diagnosis status at each visit and prescribed treatments were considered.

resultsFrom 2010 to 2016, 5186 patients were initially diagnosed with PPA, 162,005 with AD. Compared to AD subjects, significant differences were found concerning age (younger at first diagnosis for PPA), gender (more balanced in PPA), education level (higher in PPA) and MMSE score (higher of 1 point in PPA). Percentage of pending diagnosis, delay between first consultation and first diagnosis and the number of different diagnoses before the diagnosis of interest were significantly higher in PPA group compared to AD group. Pharmacological and non-pharmacological treatments were significatively more recommended following PPA than AD diagnosis.

conclusionThis study improves the knowledge of PPA epidemiology and has the potential to help adopting appropriate public health service policies. It supports the hypothesis that PPA is diagnosed later than AD. The PPA diagnosis increases the prescription of non-pharmacological treatments, especially speech and language therapy (SLT) that is the main treatment available and most effective when at the initial stage.

trial registrationClinicalTrials.gov identifier NCT03687112.

Indexed as

Alzheimer DiseaseAphasia, Primary ProgressiveCross-Sectional StudiesDiagnosis, DifferentialHumansLanguageAlzheimer’s diseaseDiagnosisPrimary progressive aphasia

Identifiers

PMID35538502
PMCPMC9092839
OpenAlexW4229451673

What OpenQuestion holds

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LicenceCC BY
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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.