Evidence map›Paper›PMID 41408846›Full record

ArticleInternational journal of epidemiology2026

A countrywide study on post-COVID-19 condition in Brazil: the Epicovid 2.0.

Fernando C Wehrmeister, Ana M B Menezes, Margareth Dalcolmo, Elena C C Prendergast, Talita G S Batista, Otavio Amaral de Andrade Leão, Cauane Blumenberg, Fernando Vinholes Siqueira, Claudio J Struchiner, Cesar G Victora and 1 more

Abstract read
In one paragraph

Article in International journal of epidemiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. COVID-19: lessons from Brazil.International journal of epidemiology · 2026
    Article
  5. 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

11 authors.

Fernando C WehrmeisterPrograma de Pós-graduação em Epidemiologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil.ORCID 0000-0001-7137-1747
Ana M B MenezesPrograma de Pós-graduação em Epidemiologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil.ORCID 0000-0002-2996-9427
Margareth DalcolmoCentro de Referência Hélio Fraga, Oswaldo Cruz Foundation, Rio de Janeiro, Rio de Janeiro, Brazil.ORCID 0000-0002-6820-1082
Elena C C PrendergastSecretaria de Vigilância em Saúde e Ambiente, Minsitério da Saúde, Brasília, DF, Brazil.ORCID 0009-0001-0697-3714
Talita G S BatistaSecretaria de Vigilância em Saúde e Ambiente, Minsitério da Saúde, Brasília, DF, Brazil.ORCID 0009-0000-7572-6947
Otavio Amaral de Andrade LeãoDepartment of Health and Kinesiology, University of Illinois Urbana-Champaign, Urbana, IL, United States.ORCID 0000-0002-5253-7665
Cauane BlumenbergInternational Center for Equity in Health, Federal University of Pelotas, Pelotas, Brazil.ORCID 0000-0002-4580-3849
Fernando Vinholes SiqueiraPrograma de Pós-graduação em Educação Física, Escola Superior de Educação Física e Fisioterapia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil.ORCID 0000-0002-2899-3062
Claudio J StruchinerDepartamento de Epidemiologia, Instituto de Medicina Social, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil.ORCID 0000-0003-2114-847X
Cesar G VictoraPrograma de Pós-graduação em Epidemiologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil.ORCID 0000-0002-2465-2180
Pedro C HallalDepartment of Health and Kinesiology, University of Illinois Urbana-Champaign, Urbana, IL, United States.ORCID 0000-0003-1470-6461

Funding

Brazilian Ministry of Health 25/2023
6 · The paper itself

Abstract

backgroundThe COVID-19 pandemic had severe impacts worldwide. We assessed the occurrence of a post-COVID-19 condition (PCC) in Brazil and described the persistence of symptoms 4 years after the start of the pandemic.

methodsA population-based survey was carried out in 133 large cities in 2024. The current prevalence of 21 COVID-19-related symptoms was recorded for all respondents, regardless of infection history. The World Health Organization's definition of PCC was adopted. Results were described by country region and socio-demographic characteristics.

resultsOf the 33 250 individuals sampled, 28.6% [95% confidence interval (CI) 27.3 to 30.0] reported having had COVID-19, of whom 65.1% (95% CI 62.7 to 67.4) fulfilled the criteria for PCC at any time in the past. Prevalence of PCC was highest among those who were hospitalized and needed intubation or oxygen support [85.3% (95% CI 79.6 to 89.7)]. The average number of current symptoms among those with PCC was 7.21 (95% CI 6.73 to 7.69) compared with 2.77 (95% CI 2.62 to 2.92) among those without a COVID-19 history. The most common symptoms for those with COVID-19 history were memory loss, anosmia, loss of sensitivity in the hands, difficulty in concentration, and hair loss. Women and Indigenous individuals presented a higher average number of symptoms compared with those without a history.

conclusionA high proportion of individuals who suffered from COVID-19 presented symptoms 4 years after the SARS-CoV-2 emergence; almost two-thirds presented PCC. Population-based studies in different countries are necessary to better understand the epidemiology of this serious condition.

Indexed as

COVID-19AdolescentAdultAgedBrazilChildFemaleHumansMaleMiddle AgedPrevalenceSARS-CoV-2Young AdultBrazilpost-COVID-19 conditionSARS-COV-2survey

Identifiers

PMID41408846
PMCPMC12805824

What OpenQuestion holds

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LicenceCC BY-NC
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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.