Evidence map›Paper›PMID 34067722›Full record

ArticleNutrients2021

Pregnancy after Bariatric Surgery: A Nested Case-Control Study of Risk Factors for Small for Gestational Age Babies in

Zainab Akhter, Nicola Heslehurst, Dries Ceulemans, Judith Rankin, Roger Ackroyd, Roland Devlieger

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Perinatal Outcomes After Sleeve Gastrectomy Compared to a Matched Control Group.The Australian & New Zealand journal of obstetrics & gynaecology · 2026
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Observational
  11. Obesity in prenatal medicine: a game changer?Archives of gynecology and obstetrics · 2024
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. 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

6 authors at 3 institutions in 2 countries.

Zainab AkhterPopulation Health Sciences Institute, Newcastle University, Newcastle upon Tyne NE2 4AX, UK.ORCID 0000-0001-8878-5970
Nicola HeslehurstPopulation Health Sciences Institute, Newcastle University, Newcastle upon Tyne NE2 4AX, UK.
Dries CeulemansDepartment of Obstetrics and Gynaecology, University Hospitals Leuven, 3000 Leuven, Belgium.ORCID 0000-0002-7392-2773
Judith RankinPopulation Health Sciences Institute, Newcastle University, Newcastle upon Tyne NE2 4AX, UK.
Roger AckroydDepartment of Surgery, Sheffield Teaching Hospitals, Sheffield S10 2JF, UK.
Roland DevliegerDepartment of Obstetrics and Gynaecology, University Hospitals Leuven, 3000 Leuven, Belgium.ORCID 0000-0001-7837-4684
Newcastle University · GBKU Leuven · BESheffield Teaching Hospitals NHS Foundation Trust · GB

Funding

Medical Research Council MR/K02325X/1Newcastle University Research Excellence Academy BJS/400365055
6 · The paper itself

Abstract

Bariatric surgery prior to pregnancy is a significant risk factor for small for gestational age (SGA) babies. This case-control study investigated differences between mothers delivering an SGA baby following bariatric surgery, compared to those delivering an appropriate for gestational age (AGA) baby. Out of 129 babies born to mothers in the AURORA cohort study, 25 were SGA (<10th percentile) and 97 were AGA (10th-90th percentile). Higher gestational weight gain (GWG) was significantly associated with decreased odds of SGA (aOR per kg 0.92, 95% CI 0.85-0.99). According to the Institute of Medicine GWG guidelines, 44% of SGA mothers had 'inadequate' GWG compared to 17% of AGA mothers. Nearly half of the mothers had 'excessive' GWG yet still gave birth to an SGA or AGA baby. Mothers of SGA babies lost more weight following bariatric surgery (45.6 ± 14.4 kg vs. 39.0 ± 17.9 kg). Women who reported receiving nutritional advice following bariatric surgery were significantly less likely to have an SGA baby (aOR 0.15, 95% CI 0.0.4-0.55). Women with a history of bariatric surgery should be provided with specialized support before and during pregnancy to encourage adequate nutritional intake and weight gain to support healthy fetal growth.

Indexed as

Gestational Weight GainInfant, Small for Gestational AgeAdultBariatric SurgeryCase-Control StudiesFemaleGestational AgeHumansInfant, NewbornOdds RatioPostoperative ComplicationsPostoperative PeriodPregnancyPregnancy ComplicationsRisk Factorsbariatric surgeryfetal growthgestational weight gainnutritionobesitypregnancy

Identifiers

PMID34067722
PMCPMC8156275
OpenAlexW3161027308

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.