Evidence map›Paper›PMID 30121854›Full record

SynthesisObesity surgery2018

The Efficacy of Energy-Restricted Diets in Achieving Preoperative Weight Loss for Bariatric Patients: a Systematic Review.

Fathimath Naseer, Asim Shabbir, Barbara Livingstone, Ruth Price, Nicholas L Syn, Orla Flannery

Open access · goldAbstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Obesity surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
1.0field-weighted citation impact, top 25% 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

11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Observational
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.

Fathimath NaseerNutrition Innovation Centre for Food and Health, Ulster University, Cromore Road, Coleraine, Co. Londonderry, BT52 1SA, UK.
Asim ShabbirDepartment of Surgery, National University Hospital, 5 Lower Kent Ridge Road, Singapore, 119077, Singapore.
Barbara LivingstoneNutrition Innovation Centre for Food and Health, Ulster University, Cromore Road, Coleraine, Co. Londonderry, BT52 1SA, UK.
Ruth PriceNutrition Innovation Centre for Food and Health, Ulster University, Cromore Road, Coleraine, Co. Londonderry, BT52 1SA, UK.
Nicholas L SynYong Loo Lin School of Medicine, National University of Singapore, 21 Lower Kent Ridge Road, Singapore, 119077, Singapore.
Orla FlanneryDepartment of Clinical Sciences and Nutrition, University of Chester, Parkgate Road, Chester, CH1 4BJ, UK. O.flannery@chester.ac.uk.ORCID 0000-0002-4669-2781
University of Ulster · GBNational University of Singapore · SGUniversity of Chester · GB

Funding

Medical Research Council MC_PC_16017
6 · The paper itself

Abstract

In bariatric practice, a preoperative weight loss of at least 5% is recommended. However, the hypocaloric diets prescribed vary and no consensus exists. This study examined the efficacy of preoperative diets in achieving 5% weight loss. From a systematic literature search, eight randomised controlled trials (n = 862) were identified. Half of the trials used a "very-low-calorie diet" whilst the rest employed a "low-calorie diet". Only five diets achieved ≥ 5% weight loss over varying durations and energy intakes. By inference, compliance with a 700-1050 kcal (2929-4393 kJ) diet, consisting of moderate carbohydrate, high protein and low/moderate fat, for 3 weeks is likely to achieve 5% weight loss. A low-carbohydrate diet (< 20 g/day) may achieve this target within a shorter duration. Additional research is required to validate these conclusions.

Indexed as

Caloric RestrictionDiet, ReducingWeight LossBariatricsCombined Modality TherapyDiet, Carbohydrate-RestrictedDiet, Fat-RestrictedEnergy IntakeHumansObesityObesity, MorbidRandomized Controlled Trials as TopicBariatric surgeryLow-calorie dietMetabolic surgeryObesityVery-low-calorie diet

Identifiers

PMID30121854
OpenAlexW2887077318

What OpenQuestion holds

Textmetadata
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.