Evidence map›Paper›PMID 26056188›Full record

Observational studyEuropace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology2015

Atrial fibrillation: prevalence in a large database of primary care patients in Brazil.

Milena S Marcolino, Daniel M F Palhares, Emelia J Benjamin, Antonio L Ribeiro

Abstract readObservational Study
In one paragraph

Observational study in Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing 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

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

  1. Pooled it
  2. Guideline
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Additional Data on Atrial Fibrillation from ELSA-Brasil Study.Arquivos brasileiros de cardiologia · 2025
    Article
  8. Article
  9. Observational
  10. Cardiovascular Statistics - Brazil 2023.Arquivos brasileiros de cardiologia · 2024
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Cardiovascular Statistics - Brazil 2021.Arquivos brasileiros de cardiologia · 2022
    Article
  18. Review
  19. Article
  20. 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

4 authors.

Milena S MarcolinoDepartment of Internal Medicine, Medical School and University Hospital, Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 190 Room 246, CEP 30130-100 Belo Horizonte, Brazil Telehealth Network of Minas Gerais, Belo Horizonte, Brazil milenamarc@gmail.com.
Daniel M F PalharesDepartment of Internal Medicine, Medical School and University Hospital, Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 190 Room 246, CEP 30130-100 Belo Horizonte, Brazil Telehealth Network of Minas Gerais, Belo Horizonte, Brazil.
Emelia J BenjaminDepartment of Medicine, Boston University School of Medicine, Boston, MA, USA.
Antonio L RibeiroDepartment of Internal Medicine, Medical School and University Hospital, Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena, 190 Room 246, CEP 30130-100 Belo Horizonte, Brazil Telehealth Network of Minas Gerais, Belo Horizonte, Brazil.

Funding

IDENTIFICATION OF COMMON GENETIC VARIANTS FOR ATRIAL FIBRILLATION AND PR INTERVALR01HL092577 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI BENJAMIN, EMELIA J., ELLINOR, PATRICK THOMAS · 2009 to 2025
$20.6M
NHLBI NIH HHS 2R01HL092577
6 · The paper itself

Abstract

aimsAlthough an increasing prevalence of atrial fibrillation (AF) has been reported worldwide, there are few studies from low- and middle-income countries. Our objective is to assess the prevalence of AF and the associated medical conditions in Brazilian primary care patients. METHODS AND

resultsThis is an observational retrospective study. Patients ≥5 years of age from primary care centres of 658 municipalities in Minas Gerais, Brazil, who performed digital electrocardiograms (ECGs) by a public telehealth service in 2011 were assessed. Clinical data were self-reported, and ECGs were interpreted by a team of trained cardiologists using standardized criteria. To assess the relation between clinical characteristics and AF, odds ratios were estimated by logistic regression. A total of 262 685 primary care patients were included, mean (SD) age of 50.3 (19.3) years, 59.6% female. Hypertension was reported in 32.0%, family history of coronary heart disease in 15.0%, diabetes in 5.4%, hyperlipidaemia in 2.8%, Chagas disease in 2.9%, and 7.1% reported current smoking. The prevalence of AF was 1.8% overall: 2.4% in men (ranging from 0.001% from 5-19 years old to 14.6% in nonagenarians) and 1.3% in women (ranging from 0.001% from 5-19 years old to 8.7% in nonagenarians) (P < 0.001). The prevalence of AF increased with advancing age. The comorbidities associated with AF were Chagas disease, previous myocardial infarction, hypertension, and chronic obstructive pulmonary disease. Vitamin K antagonist use was reported by 1.5% of patients.

conclusionThe prevalence and age distribution of AF were similar to studies in high-income countries. The proportion of patients who reported the use of anticoagulants was alarmingly low. Our findings point out the necessity to formulate effective treatment strategies for AF in Brazilian primary care settings.

Indexed as

Primary Health CareAdolescentAdultAgedAged, 80 and overAge DistributionAnticoagulantsAtrial FibrillationBrazilChildChild, PreschoolComorbidityDatabases, FactualElectrocardiographyFemaleHumansAnticoagulantsAtrial fibrillationAtrial flutterElectrocardiogramPrimary healthcareTelecardiologyTelehealth

Identifiers

PMID26056188
PMCPMC4700731

What OpenQuestion holds

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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.