Evidence map›Paper›PMID 33740055›Full record

ArticleThe American journal of clinical nutrition2021

Gestational weight gain charts: results from the Brazilian Maternal and Child Nutrition Consortium.

Gilberto Kac, Thaís R B Carilho, Kathleen M Rasmussen, Michael E Reichenheim, Dayana R Farias, Jennifer A Hutcheon, Brazilian Maternal and Child Nutrition Consortium

Abstract read
In one paragraph

Article in The American journal of clinical nutrition, 2021. 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
–field-weighted citation impact
1 · What the graph read from it

What it found

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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.

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  9. Pre-pregnancy body mass index classification and weight gain according to new brazilian protocols and their association with gestational diabetes mellitus.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2026
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  10. Adequacy of gestational weight gain according to the brazilian charts: a comparison with the Institute of Medicine recommendations.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2026
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  18. Should gestational weight gain charts exclude individuals with excess postpartum weight retention?Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Gilberto KacNutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.ORCID 0000-0001-8603-9077
Thaís R B CarilhoNutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.ORCID 0000-0001-5928-6136
Kathleen M RasmussenDivision of Nutritional Sciences, Cornell University, Ithaca, NY, USA.
Michael E ReichenheimDepartment of Epidemiology, Institute of Social Medicine, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil.
Dayana R FariasNutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Jennifer A HutcheonDepartment of Obstetrics and Gynaecology, University of British Columbia, Faculty of Medicine, Vancouver, BC, Canada.
Brazilian Maternal and Child Nutrition Consortium

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMonitoring gestational weight gain (GWG) is fundamental to ensure a successful pregnancy for the mother and the offspring. There are several international GWG charts, but just a few for low- and middle-income countries.

objectivesTo construct GWG charts according to pre-pregnancy BMI for Brazilian women.

methodsThis is an individual patient data analysis using the Brazilian Maternal and Child Nutrition Consortium data, comprising 21 cohort studies. External validation was performed using "Birth in Brazil," a nationwide study. We selected adult women with singleton pregnancies who were free of infectious and chronic diseases, gestational diabetes, and hypertensive disorders; who delivered a live birth at term; and whose children were adequate for gestational age, and with a birth weight between 2500-4000 g. Maternal self-reported pre-pregnancy weight and weight measured between 10-40 weeks of gestation were used to calculate GWG. Generalized Additive Models for Location, Scale and Shape were fitted to create GWG charts according to gestational age, stratified by pre-pregnancy BMI.

resultsThe cohort included 7086 women with 29,323 weight gain measurements to construct the charts and 4711 women with 31,052 measurements in the external validation. The predicted medians for GWG at 40 weeks, according to pre-pregnancy BMI, were: underweight, 14.1 kg (IQR, 10.8-17.5 kg); normal weight, 13.8 kg (IQR, 10.7-17.2 kg); overweight, 12.1 kg (IQR, 8.5-15.7 kg); obesity, 8.9 kg (IQR, 4.8-13.2 kg). The 10th, 25th, 50th, 75th, and 90th percentiles were estimated. Results for internal and external validation showed that the percentages below the selected percentiles were close to those expected.

conclusionsThe charts proposed provide a description of GWG patterns according to gestational age and pre-pregnancy BMI among healthy Brazilian women with good neonatal outcomes. The external validation indicates that this new tool can be used to monitor GWG in the primary health-care setting and to test potential recommended values.

Indexed as

Maternal-Child Health ServicesAdultBrazilDiabetes, GestationalFemaleGestational Weight GainHumansOverweightPregnancyPregnancy ComplicationsPregnancy OutcomeThinnessYoung Adultgestationgestational weight gainpregnancyprimary health carereference standardsweight gain

Identifiers

PMID33740055
PMCPMC8106749

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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.