Evidence map›Paper›PMID 36995562›Full record

ArticleObesity surgery2023

When Definitions Differ, are Comparisons Meaningful? Definitions of Weight Regain After Bariatric Surgery and Their Associations with Patient Characteristics and Clinical Outcomes - A Need for a Revisit?

Wahiba Elhag, Merilyn Lock, Walid El Ansari

Abstract read
In one paragraph

Article in Obesity surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–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

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Assessment and medical management of weight regain after adolescent metabolic and bariatric surgery: a narrative review.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2025
    Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Diabetic Markers, Five Years after Bariatric Surgery.Middle East journal of digestive diseases · 2023
    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

3 authors.

Wahiba ElhagDepartment of Bariatric Surgery/Bariatric Medicine, Hamad Medical Corporation, Doha, Qatar.
Merilyn LockDivision of Exercise Science, Health and Epidemiology, College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar.
Walid El AnsariWeill Cornell Medicine-Qatar, Doha, Qatar. welansari9@gmail.com.ORCID http://orcid.org/0000-0003-0961-1302

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDefinitions and prevalence of weight regain (WR) after bariatric surgery remains inconsistent and their clinical significance unclear.

objectivesTo assess WR five years after sleeve gastrectomy (LSG), employing six definitions; and appraise their association with patient characteristics/clinical outcomes.

methodsConsecutive patients (N = 589) who underwent LSG were followed up for 5 years. WR prevalence was calculated yearly employing six definitions. Regression analysis assessed associations between WR at 5 years, and patient characteristics (age, sex, preop BMI, number of follow-up visits, number of comorbidities) and remission of comorbidities (type 2 diabetes, hypertension, and dyslipidemia).

resultsSample's mean age and BMI were 34 ± 11.6 years and 43.13 ± 5.77 kg/m

conclusionWeight regain is reasonably expected after BMS. WR definitions were of minor clinical significance due to weak associations with limited comorbidities. Dichotomous definitions might offer some guidance while managing individual patients. However, its utility as a comparator metric across patients/procedures requires refinements.

Indexed as

Bariatric SurgeryDiabetes Mellitus, Type 2HypertensionLaparoscopyObesity, MorbidFemaleGastrectomyHumansMaleRetrospective StudiesTreatment OutcomeWeight GainBariatric surgeryDefinitionLaparoscopic sleeve gastrectomyPredictors of weight regainRemissionWeight regain

Identifiers

PMID36995562
PMCPMC10156838

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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.