Evidence map›Paper›PMID 33558894›Full record

ArticleThe American journal of clinical nutrition2021

Reward-related gustatory and psychometric predictors of weight loss following bariatric surgery: a multicenter cohort study.

Gabriela Ribeiro, Marta Camacho, Ana B Fernandes, Gonçalo Cotovio, Sandra Torres, Albino J Oliveira-Maia

Open access · bronzeAbstract readMulticenter Study
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 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
3.7field-weighted citation impact, top 6% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  6. Observational
  7. Microbiome: A Key Regulator of Body-Brain Interactions.Advances in experimental medicine and biology · 2025
    Review
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  17. Sweet taste and obesity.European journal of internal medicine · 2021
    Review
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 2 institutions in 1 country.

Gabriela RibeiroChampalimaud Research & Clinical Centre, Champalimaud Centre for the Unknown, Lisboa, Portugal.
Marta CamachoChampalimaud Research & Clinical Centre, Champalimaud Centre for the Unknown, Lisboa, Portugal.
Ana B FernandesChampalimaud Research & Clinical Centre, Champalimaud Centre for the Unknown, Lisboa, Portugal.
Gonçalo CotovioChampalimaud Research & Clinical Centre, Champalimaud Centre for the Unknown, Lisboa, Portugal.
Sandra TorresFaculdade de Psicologia e de Ciências da Educação, Universidade do Porto, Porto, Portugal.
Albino J Oliveira-MaiaChampalimaud Research & Clinical Centre, Champalimaud Centre for the Unknown, Lisboa, Portugal.
Champalimaud Foundation · PTUniversidade do Porto · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundReward sensitivity has been proposed as a potential mediator of outcomes for bariatric surgery.

objectivesWe aimed to determine whether gustatory and psychometric measures of reward-related feeding are predictors of bariatric-induced weight loss.

methodsA multicenter longitudinal cohort study was conducted in patients scheduled for bariatric surgery (surgical group), assessed at baseline and 2 follow-up assessments. Predictions of % weight loss from baseline (%WL) according to baseline gustatory measures, including intensity and pleasantness ratings of sweet and other tastants, and psychometric measures of reward-related feeding behavior, including hedonic hunger scores, were assessed with multivariable linear regression. Exploratory analyses were conducted to test for associations between %WL and changes in gustatory and psychophysical measures, as well as for comparisons with data from patients on the surgery waiting list (control group).

resultsWe included 212 patients, of whom 96 in the surgical group and 50 in the control group were prospectively assessed. The groups were similar at baseline and, as expected, bariatric surgery resulted in higher %WL (BTreatment-Time  = 2.4; 95% CI: 2.1-2.8; P  < 0.0001). While variation in gustatory measures did not differ between groups, in the surgery group baseline sweet intensity predicted %WL at the primary endpoint (11 to 18 months postoperatively; β = 0.2; B = 0.2, 95% CI: 0.02 to 0.3; P  = 0.02), as did hedonic hunger scores (β = -0.2; B = -2.0, 95% CI: -3.8 to -0.3; P  = 0.02). Furthermore, at this endpoint, postsurgical reduction of sweet taste intensity and acceptance of sweet foods were associated with %WL (β = -0.3; B = -3.5, 95% CI: -5.8 to -1.3; P  = 0.003, and β = -0.2; B = -4.7, 95% CI: -8.5 to -0.8; P  = 0.02, respectively). The use of sweet intensity as a predictor of weight change was confirmed in another bariatric cohort.

conclusionsSweet intensity ratings and hedonic hunger scores predict %WL after surgery. The variability of sweet intensity ratings is also associated with %WL, further suggesting they may reflect physiological processes that are variably modulated by bariatric surgery, influencing clinical outcomes.

Indexed as

Bariatric SurgeryRewardWeight LossAdultAppetiteCase-Control StudiesCohort StudiesFeeding BehaviorFemaleHumansHungerLongitudinal StudiesMaleMiddle AgedObesityTastebariatric surgerfeeding behaviorfood rewardgustationpsychometrysweet tasteweight loss

Identifiers

PMID33558894
PMCPMC7948842
OpenAlexW3129108554

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.