Evidence map›Paper›PMID 31832828›Full record

Observational studyJournal of neurology2020

Prevalence of obstructive sleep apnea in Alzheimer's disease patients.

Anna Michela Gaeta, Ivan D Benítez, Carmen Jorge, Gerard Torres, Faride Dakterzada, Olga Minguez, Raquel Huerto, Montse Pujol, Anna Carnes, Mireia Dalmases and 5 more

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Journal of neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Impact of Alzheimer's disease on sleep in adults with Down syndrome.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. International Consensus Statement on Obstructive Sleep Apnea.International forum of allergy & rhinology · 2023
    Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Review
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

15 authors at 3 institutions in 1 country.

Anna Michela GaetaGroup of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, Lleida, Spain.
Ivan D BenítezGroup of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, Lleida, Spain.
Carmen JorgeUnitat Trastorns Cognitius, Clinical Neuroscience Research, IRBLleida-Hospital Universitari Santa Maria Lleida, Lleida, Spain.
Gerard TorresGroup of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, Lleida, Spain.
Faride DakterzadaUnitat Trastorns Cognitius, Clinical Neuroscience Research, IRBLleida-Hospital Universitari Santa Maria Lleida, Lleida, Spain.
Olga MinguezGroup of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, Lleida, Spain.
Raquel HuertoUnitat Trastorns Cognitius, Clinical Neuroscience Research, IRBLleida-Hospital Universitari Santa Maria Lleida, Lleida, Spain.
Montse PujolGroup of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, Lleida, Spain.
Anna CarnesUnitat Trastorns Cognitius, Clinical Neuroscience Research, IRBLleida-Hospital Universitari Santa Maria Lleida, Lleida, Spain.
Mireia DalmasesGroup of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, Lleida, Spain.
Aurora GibertUnitat Trastorns Cognitius, Clinical Neuroscience Research, IRBLleida-Hospital Universitari Santa Maria Lleida, Lleida, Spain.
Ramón FarréUnitat Biofísica I Bioenginyeria, Facultat de Medicina, Universitat de Barcelona, Barcelona, Spain.
Manuel Sanchez de la TorresGroup of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, Lleida, Spain.
Ferran BarbéGroup of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, Lleida, Spain.
Gerard Piñol-RipollUnitat Trastorns Cognitius, Clinical Neuroscience Research, IRBLleida-Hospital Universitari Santa Maria Lleida, Lleida, Spain. gerard_437302@hotmail.com.ORCID http://orcid.org/0000-0002-4495-2113
Hospital Universitari Arnau de Vilanova · ESHospital Universitari de Santa Maria · ESUniversitat de Barcelona · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo assess the prevalence of obstructive sleep apnea (OSA) in patients with mild-moderate Alzheimer's Disease (AD) and to evaluate cognitive characteristics according to the severity of OSA.

methodsPatients with mild-moderate AD, recruited prospectively from a cognitive impairment unit, underwent overnight polysomnography. OSA was defined as an apnea-hypopnea index > 5/h. AD severity was assessed using the Mini-Mental State Examination and extensive neuropsychological battery. Epworth Sleepiness Scale and APOE status were analyzed.

resultsThe cohort included 128 patients with a median [IQR] age of 75.0 [72.0;79.2] years and 57.8% were women. OSA was diagnosed in 116 subjects (90.6%). The distribution of mild, moderate and severe severity of OSA was 29 (22.7%), 37 (28.9%) and 50 (39.1%), respectively. Regarding sleep symptoms, the cohort showed normal values of daytime sleepiness (median EES score 5 [3, 8]), while nycturia (89.1%) and snoring (71.1%) were the most common symptoms. Participants with severe OSA included a higher proportion of older men, were associated with snoring and sedentariness. No significant differences in cognitive assessment were found between patients with and without severe OSA in any of the domains. The prevalence of APOE ε4 was not significantly different between patients with and without severe OSA.

conclusionThere was a high prevalence of OSA in patients with mild-moderate AD. OSA was not associated with sleepiness or worse cognitive function. APOE ε4 was not related to the presence or severity of OSA. Further longitudinal studies will be required to evaluate whether OSA impairs cognitive evolution in AD patients.

Indexed as

AgedAged, 80 and overAge FactorsAlzheimer DiseaseCohort StudiesComorbidityFemaleHumansMalePrevalenceSedentary BehaviorSeverity of Illness IndexSex FactorsSleep Apnea, ObstructiveSnoringSpainAlzheimer’s diseaseCognitionObstructive sleep apneaPrevalenceSleep-disordered breathing

Identifiers

PMID31832828
OpenAlexW2996417078

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.