Evidence map›Paper›PMID 32928144›Full record

ArticleBMC pregnancy and childbirth2020

Factors associated with low birth weight at term: a population-based linkage study of the 100 million Brazilian cohort.

Ila R Falcão, Rita de Cássia Ribeiro-Silva, Marcia F de Almeida, Rosemeire L Fiaccone, Aline Dos S Rocha, Naiá Ortelan, Natanael J Silva, Enny S Paixao, Maria Yury Ichihara, Laura C Rodrigues and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

29 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Temporal and spatial analysis of low birth weight cases in Sergipe.Revista latino-americana de enfermagem · 2026
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  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

11 authors at 4 institutions in 2 countries.

Ila R FalcãoSchool of Nutrition, Federal University of Bahia, Salvador, Brazil. falcao.ila@gmail.com.ORCID http://orcid.org/0000-0001-6961-3858
Rita de Cássia Ribeiro-SilvaSchool of Nutrition, Federal University of Bahia, Salvador, Brazil.
Marcia F de AlmeidaSchool of Public Health, University of São Paulo, São Paulo, Brazil.
Rosemeire L FiacconeCenter for Data and Knowledge Integration for Health (CIDACS), Oswaldo Cruz Foundation, Salvador, Brazil.
Aline Dos S RochaSchool of Nutrition, Federal University of Bahia, Salvador, Brazil.
Naiá OrtelanCenter for Data and Knowledge Integration for Health (CIDACS), Oswaldo Cruz Foundation, Salvador, Brazil.
Natanael J SilvaCenter for Data and Knowledge Integration for Health (CIDACS), Oswaldo Cruz Foundation, Salvador, Brazil.
Enny S PaixaoCenter for Data and Knowledge Integration for Health (CIDACS), Oswaldo Cruz Foundation, Salvador, Brazil.
Maria Yury IchiharaCenter for Data and Knowledge Integration for Health (CIDACS), Oswaldo Cruz Foundation, Salvador, Brazil.
Laura C RodriguesCenter for Data and Knowledge Integration for Health (CIDACS), Oswaldo Cruz Foundation, Salvador, Brazil.
Mauricio L BarretoCenter for Data and Knowledge Integration for Health (CIDACS), Oswaldo Cruz Foundation, Salvador, Brazil.
Universidade Federal da Bahia · BRFundação Oswaldo Cruz · BRLondon School of Hygiene & Tropical Medicine · GBUniversidade de São Paulo · BR

Funding

Wellcome TrustWellcome Trust 213589 / Z / 18 / Z
6 · The paper itself

Abstract

backgroundFactors associated with low birth weight at term (TLBW), a proxy for intrauterine growth restriction (IUGR), are not well-elucidated in socioeconomically vulnerable populations. This study aimed to identify the factors associated with TLBW in impoverished Brazilian women.

methodsRecords in the 100 Million Brazilian Cohort database were linked to those in the National System of Information on Live Births (SINASC) to obtain obstetric, maternal, birth and socioeconomic data between 2001 and 2015. Multivariate logistic regression was performed to investigate associations between variables of exposure and TLBW.

resultsOf 8,768,930 term live births analyzed, 3.7% presented TLBW. The highest odds of TLBW were associated with female newborns (OR: 1.49; 95% CI: 1.47-1.50), whose mothers were black (OR: 1.20; 95% CI: 1.18-1.22), had a low educational level (OR: 1.57; 95% CI: 1.53-1.62), were aged ≥35 years (OR: 1.44; 95% CI: 1.43-1.46), had a low number of prenatal care visits (OR: 2.48; 95% CI: 2.42-2.54) and were primiparous (OR: 1.62; 95% CI: 1.60-1.64). Lower odds of TLBW were found among infants whose mothers lived in the North, Northeast and Center-West regions of Brazil compared to those in the South.

conclusionMultiple aspects were associated with TLBW, highlighting the need to comprehensively examine the mechanisms underlying these factors, especially in more vulnerable Brazilian populations, in order to contribute to the elaboration of health policies and promote better conditions of life for poor and extremely poor mothers and children.

Indexed as

BrazilCohort StudiesFemaleFetal Growth RetardationHumansInfant, Low Birth WeightInfant, NewbornMaleRisk FactorsTerm BirthCohortLinkageLow birth weightPoor populationsTerm birth

Identifiers

PMID32928144
PMCPMC7491100
OpenAlexW3084919278

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.