Evidence map›Paper›PMID 37645655›Full record

ArticleAJOG global reports2023

Low gestational weight gain (+2.0 to 4.9 kg) for singleton-term gestations associated with favorable perinatal outcomes for all prepregnancy obesity classes.

Emilia G Wilkins, Baiyang Sun, Alexis S Thomas, Amy Alabaster, Mara Greenberg, Jeffrey D Sperling, David L Walton, Jasmin Alves, Erica P Gunderson

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in AJOG global reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

6 citing papers in PubMed, 6 citations in OpenAlex.

  1. Trial
  2. Article
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  5. Observational
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 1 country.

Emilia G WilkinsDepartment of Obstetrics and Gynecology, Kaiser Permanente, Richmond Medical Center, CA (Dr Wilkins).
Baiyang SunDivision of Research, Kaiser Permanente Northern California, Oakland, CA (Mses Sun, Thomas, and Alabaster and Drs Alves and Gunderson).
Alexis S ThomasDivision of Research, Kaiser Permanente Northern California, Oakland, CA (Mses Sun, Thomas, and Alabaster and Drs Alves and Gunderson).
Amy AlabasterDivision of Research, Kaiser Permanente Northern California, Oakland, CA (Mses Sun, Thomas, and Alabaster and Drs Alves and Gunderson).
Mara GreenbergDepartment of Obstetrics and Gynecology, Kaiser Permanente, Oakland Medical Center, Oakland, CA (Dr Greenberg).
Jeffrey D SperlingDepartment of Obstetrics and Gynecology, Kaiser Permanente, Modesto Medical Center, Modesto, CA (Dr Sperling).
David L WaltonValley Children's Hospital, Madera, CA (Dr Walton).
Jasmin AlvesDivision of Research, Kaiser Permanente Northern California, Oakland, CA (Mses Sun, Thomas, and Alabaster and Drs Alves and Gunderson).
Erica P GundersonDivision of Research, Kaiser Permanente Northern California, Oakland, CA (Mses Sun, Thomas, and Alabaster and Drs Alves and Gunderson).
Kaiser Permanente · USChildren's Hospital Central California · USKaiser Permanente Modesto Medical Center and Medical Offices · USKaiser Permanente Oakland Medical Center · USKaiser Permanente Richmond Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies that evaluated low gestational weight gain or weight loss among prepregnancy obesity classes have not determined the amount of gestational weight gain associated with the lowest risk of adverse perinatal outcomes and neonatal morbidity among singleton term births.

objectiveThis study aimed to evaluate the relationship of specific gestational weight gain categories of weight loss, stable weight, and low gain considered below the 2009 Institute of Medicine guidelines to perinatal outcomes and neonatal morbidity for singleton, term live births among prepregnancy obesity classes. STUDY

designThis was a retrospective cohort study of 18,476 women among 3 classes of prepregnancy obesity, based on measured prepregnancy weight, and delivering a live singleton pregnancy at ≥37 weeks of gestation at a Kaiser Permanente Northern California hospital (2009-2012). Variables from electronic medical records included perinatal outcomes, sociodemographics, and measured prepregnancy and delivery weights to calculate total gestational weight gain, used to define 5 gestational weight gain categories: weight loss (<-2.0 kg), stable weight (-2.0 to +1.9 kg), low gain (+2.0 to 4.9 kg), gain within guidelines (+5.0 to 9.1 kg; referent), and gain above guidelines (>9.1 kg). Logistic regression models estimated adjusted odds ratios and 95% confidence intervals of maternal and newborn perinatal outcomes (hypertensive disorders, cesarean delivery, size for gestational age, length of stay, neonatal intensive care unit admission) associated with gestational weight gain categories stratified by prepregnancy obesity classes 1, 2, and 3.

resultsLow gain occurred in 8%, 12%, and 13% of women in obesity class 1 (body mass index, 30.0-34.9), class 2 (body mass index, 35.0-39.9), and class 3 (body mass index, ≥40), respectively. Compared with gestational weight gain within Institute of Medicine guidelines, low gain was associated with similar or improved maternal and newborn perinatal outcomes for all obesity classes without increased odds of neonatal intensive care unit admission, neonatal length of stay ≥3 days, or small for gestational age. The percentages of small for gestational age for the low gain category were 4.4%, 3.0%, and 4.3% among prepregnancy obesity classes 1, 2, and 3, respectively, and comparable with the gestational weight gain within the guideline category (

conclusionLower gestational weight gain of +2.0 to 4.9 kg showed the most favorable perinatal outcomes, without higher small for gestational age or neonatal morbidity for all obesity classes.

Indexed as

body mass indexclinical practicegestational weight gainobesitypregnancy

Identifiers

PMID37645655
PMCPMC10461248
OpenAlexW4381686539

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.