Evidence map›Paper›PMID 32799381›Full record

ArticleBJOG : an international journal of obstetrics and gynaecology2020

Clinical characteristics and risk factors for mortality in obstetric patients with severe COVID-19 in Brazil: a surveillance database analysis.

Mls Takemoto, M O Menezes, C B Andreucci, R Knobel, L Sousa, L Katz, E B Fonseca, M Nakamura-Pereira, C G Magalhães, Csg Diniz and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in BJOG : an international journal of obstetrics and gynaecology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 2 pooled it
10.1field-weighted citation impact, top 2% 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

59 citing papers in PubMed, 2 syntheses or guidelines pooled it, 129 citations in OpenAlex.

  1. Pooled it
  2. Maternal death related to COVID-19: A systematic review and meta-analysis focused on maternal co-morbidities and clinical characteristics.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2021
    Pooled it
  3. Gamma SARS-CoV-2 variant of concern infection repercussions on pregnancy outcomes: A translational cohort study.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026
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  8. Five years after the COVID-19 pandemic began: lessons on vaccination and obstetric care in Brazil.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 9 institutions in 1 country.

Mls TakemotoPrograma de Pós-graduação em Tocoginecologia, Medical School of Botucatu, São Paulo State University (UNESP), Botucatu, Brazil.ORCID 0000-0002-7016-2879
M O MenezesPrograma de Pós-graduação em Tocoginecologia, Medical School of Botucatu, São Paulo State University (UNESP), Botucatu, Brazil.ORCID 0000-0002-8525-0521
C B AndreucciDepartment of Medicine, Universidade Federal de São Carlos (UFSCAR), São Carlos, Brazil.ORCID 0000-0002-5590-108X
R KnobelDepartment of Gynecology and Obstetrics, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil.ORCID 0000-0001-9180-4685
L SousaPrograma de Pós-Graduação Profissional em Saúde da Mulher e da Criança, Universidade Federal do Ceará (UFC), Fortaleza, Brazil.ORCID 0000-0002-9163-8311
L KatzPrograma de Pós-graduação em Saúde Materno Infantil do IMIP, Instituto de Medicina Integral Professor Fernando Figueira (IMIP), Recife, Brazil.ORCID 0000-0001-9854-7917
E B FonsecaDivision of Obstetrics and Gynecology, Universidade Federal da Paraíba, João Pessoa, Brazil.ORCID 0000-0001-8855-8145
M Nakamura-PereiraFundação Oswaldo Cruz, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Rio de Janeiro, Brazil.ORCID 0000-0002-4231-0205
C G MagalhãesDepartment of Gynecology and Obstetrics, Medical School of Botucatu, São Paulo State University (UNESP), Botucatu, Brazil.ORCID 0000-0001-7033-1807
Csg DinizDepartment of Health, Life Cycles and Society, School of Public Health, University of São Paulo, São Paulo, Brazil.ORCID 0000-0002-0069-2532
Aso MeloDepartamento de Saúde da Mulher, Instituto de Pesquisa Professor Joaquim Amorim Neto, IPESQ, Campina Grande, Brazil.ORCID 0000-0002-8575-544X
Mmr AmorimPrograma de Pós-graduação em Saúde Materno Infantil do IMIP, Instituto de Medicina Integral Professor Fernando Figueira (IMIP), Recife, Brazil.ORCID 0000-0003-1047-2514
Brazilian Group for Studies of COVID-19 and Pregnancy
Universidade Estadual Paulista (Unesp) · BRInstituto de Medicina Integral Professor Fernando Figueira · BRFundação Oswaldo Cruz · BRInstituto de Tecnologia e Pesquisa · BRUniversidade de São Paulo · BRUniversidade Federal da Paraíba · BRUniversidade Federal de Santa Catarina · BRUniversidade Federal de São Carlos · BRUniversidade Federal do Ceará · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo describe clinical characteristics of pregnant and postpartum women with severe COVID-19 in Brazil and to examine risk factors for mortality.

designCross-sectional study based on secondary surveillance database analysis.

settingNationwide Brazil. POPULATION OR SAMPLE: 978 Brazilian pregnant and postpartum women notified as COVID-19 Acute Respiratory Distress Syndrome (ARDS) cases with complete outcome (death or cure) up to 18 June 2020.

methodsData was abstracted from the Brazilian ARDS Surveillance System (ARDS-SS) database. All eligible cases were included. Data on demographics, clinical characteristics, intensive care resources use and outcomes were collected. Risk factors for mortality were examined by multivariate logistic regression.

main outcome measuresCase fatality rate.

resultsWe identified 124 maternal deaths, corresponding to a case fatality rate among COVID-19 ARDS cases in the obstetric population of 12.7%. At least one comorbidity was present in 48.4% of fatal cases compared with 24.9% in survival cases. Among women who died, 58.9% were admitted to ICU, 53.2% had invasive ventilation and 29.0% had no respiratory support. The multivariate logistic regression showed that the main risk factors for maternal death by COVID-19 were being postpartum at onset of ARDS, obesity, diabetes and cardiovascular disease, whereas white ethnicity had a protective effect.

conclusionsNegative outcomes of COVID-19 in this population are affected by clinical characteristics but social determinants of health also seem to play a role. It is urgent to reinforce containment measures targeting the obstetric population and ensure high quality care throughout pregnancy and the postpartum period. TWEETABLE ABSTRACT: A total of 124 COVID-19 maternal deaths were identified in Brazil. Symptoms onset at postpartum and comorbidities are risk factors.

Indexed as

AdultBetacoronavirusBrazilCardiovascular DiseasesComorbidityCoronavirus InfectionsCOVID-19Critical CareCross-Sectional StudiesDatabases, FactualDiabetes MellitusEthnicityFemaleHumansLogistic ModelsMortalityCOVID-19health services accessibilityhealth status indicatorsmaternal death

Identifiers

PMID32799381
PMCPMC7461482
OpenAlexW3049473936

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.