Evidence map›Paper›PMID 39799301›Full record

ArticleBMC pregnancy and childbirth2025

The association between self-reported total gestational weight gain by pre-pregnancy body mass index and moderate to late preterm birth.

Alexandra M Palumbo, Giulia M Muraca, Anne Fuller, Charles D G Keown-Stoneman, Catherine S Birken, Jonathon L Maguire, Laura N Anderson, TARGet Kids! collaboration

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC pregnancy and childbirth, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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

3 citing papers in PubMed.

  1. Prepregnancy body mass index in Ontario from 2012 to 2022: A population-based descriptive study.Canadian journal of public health = Revue canadienne de sante publique · 2026
    Article
  2. Article
  3. 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

8 authors.

Alexandra M PalumboDepartment of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada.
Giulia M MuracaDepartment of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada.
Anne FullerDepartment of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada.
Charles D G Keown-StonemanDalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.
Catherine S BirkenDalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.
Jonathon L MaguireDalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.
Laura N AndersonDepartment of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada. ln.anderson@mcmaster.ca.
TARGet Kids! collaboration

Funding

CIHR PJT-168955
6 · The paper itself

Abstract

backgroundInadequate and excessive gestational weight gain (GWG) defined by the Institute of Medicine (IOM) has been associated with preterm birth. However, studies demonstrate inconsistent associations.

objectivesWe examined the associations between categorical and continuous total GWG and moderate to late preterm birth (32-<37 weeks), and evaluated differences in these associations by pre-pregnancy BMI.

methodsWe analyzed cross-sectional data from children participating in TARGet Kids! in Toronto, Canada. Parents of children < 6 years of age recalled pre-pregnancy weight, end-of-pregnancy weight, and gestational age. GWG was categorized according to the 2009 IOM guidelines as inadequate, recommended, or excessive for each pre-pregnancy BMI category. GWG was expressed as the percentage of recommendations met to account for gestational duration. Adjusted odds ratios (aORs) for moderate to late preterm birth were estimated using logistic regression models. Restricted cubic splines were used to model the adjusted predicted probability of moderate to late preterm birth against continuous GWG.

resultsOf the 4,529 participants, 8.2% were born moderate to late preterm. 31.1% of parents met the GWG recommendations, 41.0% had excessive GWG, and 27.9% had inadequate GWG. Compared to recommended GWG, excessive GWG had increased odds of moderate to late preterm birth (aOR 1.68, 95% CI 1.29, 2.19). There was insufficient evidence of an association between inadequate GWG and moderate to late preterm birth (aOR 1.10, 95% CI 0.81, 1.50). For parents who were overweight or had obesity, the risk of moderate to late preterm birth did not increase substantially until a GWG > 200% of the recommendations, which is well above the IOM recommended upper limit.

conclusionsExcessive GWG was associated with an increased risk of moderate to late preterm birth, with variation in the association by pre-pregnancy BMI. Current definitions of excessive GWG may not adequately reflect increased risk of preterm birth among those with overweight or obesity.

Indexed as

Body Mass IndexGestational Weight GainPremature BirthAdultCross-Sectional StudiesFemaleGestational AgeHumansInfant, NewbornMaleOntarioOverweightPregnancyRisk FactorsSelf ReportBody mass indexGestational weight gainPregnancyPremature birth

Identifiers

PMID39799301
PMCPMC11724485

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.