Evidence map›Paper›PMID 32457367›Full record

ArticleScientific reports2020

Inequalities in birth weight and maternal education: a time-series study from 1996 to 2013 in Brazil.

Sonia Silvestrin, Vânia Naomi Hirakata, Clécio Homrich da Silva, Marcelo Zubaran Goldani

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In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

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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

11 citing papers in PubMed.

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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.

Sonia SilvestrinTechnical Area for Child and Adolescent Health, Porto Alegre Municipal Health Department, Porto Alegre, RS, 90040-971, Brazil.
Vânia Naomi HirakataResearch and Graduate Studies Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-007, Brazil.
Clécio Homrich da SilvaResearch and Graduate Studies Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-007, Brazil. clecio.homrich@ufrgs.br.ORCID http://orcid.org/0000-0003-2847-3961
Marcelo Zubaran GoldaniResearch and Graduate Studies Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-007, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Maternal education represents one of the most important social determinants of inequality in birth weight (BW) in developing countries. The present study sought to investigate secular trends in health inequality considering the difference in mean BW between extremes of maternal educational attainment in Brazil. Using a time-series design, data from 6,452,551 live births which occurred in all Brazilian state capitals from 1996 to 2013 were obtained from the Information System on Live Births. Secular trends of the difference in mean birth weight between low (<8 years of schooling) and high (≥12 years of schooling) educational attainment were analyzed. The main finding was that differences in mean birth weight between the two extremes of maternal educational attainment decreased over time. There was a significant decrease in mean BW in neonates born to mothers with higher educational attainment, and a slight increase in those born to mothers with lower educational attainment. One of the key factors involved in decreasing inequality was an increase in the number of antenatal visits. In view of these results, we conclude, that despite a slight increase of mean birth weight among mothers with low education, the reduction of inequality in pregnancy outcomes over time in Brazil is attributable to a worsening scenario for mothers who are better off rather than to improvements for the most vulnerable group of mothers.

Indexed as

Birth WeightEducational StatusSocioeconomic FactorsAdultBrazilFemaleHumansInfant, NewbornLinear ModelsPregnancyPrenatal Care

Identifiers

PMID32457367
PMCPMC7251127

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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.