Evidence map›Paper›PMID 23337770›Full record

ArticleSurgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery

Reporting weight change: standardized reporting accounting for baseline weight.

Steven H Belle, Paul D Berk, Anita P Courcoulas, Scott Engel, David R Flum, William Gourash, Mary Horlick, Jesse Y Hsu, Saurabh Khandelwal, James E Mitchell and 5 more

Abstract readMulticenter Study
In one paragraph

Article in Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
2.6field-weighted citation impact, top 11% 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, 2 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Pooled it
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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

15 authors at 7 institutions in 1 country.

Steven H BelleUniversity of Pittsburgh Graduate School of Public Health, Department of Epidemiology, Pittsburgh, Pennsylvania. Electronic address: belle@edc.pitt.edu.
Paul D Berk
Anita P Courcoulas
Scott Engel
David R Flum
William Gourash
Mary Horlick
Jesse Y Hsu
Saurabh Khandelwal
James E Mitchell
Robert W O'Rourke
Walter Pories
Beth Schrope
Bruce Wolfe
LABS Consortium Weight Change Writing Group
University of Pittsburgh · USColumbia University · USOregon Health & Science University · USUniversity of North Dakota · USUniversity of Washington · USEast Carolina University · USNational Institutes of Health · US

Funding

UNIVERSITY OF PITTSBURGH CLINICAL AND TRANSLATIONAL SCIENCE INSTITUTE: BPCAUL1RR024153 · NCRR · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2006 to 2011
$73.9M
University of Pittsburgh Clinical and Translational Science InstituteUL1TR000005 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2012 to 2015
$50.8M
CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR024996 · NCRR · WEILL MEDICAL COLL OF CORNELL UNIV · PI IMPERATO-MCGINLEY, JULIANNE L · 2007 to 2011
$49.6M
Clinical and Translational Science CenterUL1TR000457 · NCATS · WEILL MEDICAL COLL OF CORNELL UNIV · PI IMPERATO-MCGINLEY, JULIANNE L · 2012 to 2016
$46.0M
ZIPRASIDONE IN NORMAL HEPATIC FUNCTION SUBJECTS &IN HEPATIC DYSFUCTIN SUBJECTSM01RR000037 · NCRR · UNIVERSITY OF WASHINGTON · PI GIBSON, RONALD L · 1985 to 2007
$33.8M
Continuation of the Longitudinal Assessment of Bariatric Surgery (LABS) - DCCU01DK066557 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BELLE, STEVEN H. · 2003 to 2015
$15.8M
BARIATRIC SURGERY CLINICAL RESEARCH CONSORTIUMU01DK066555 · NIDDK · UNIVERSITY OF CALIFORNIA DAVIS · PI WOLFE, BRUCE M · 2003 to 2013
$6.2M
Effect of Bariatric Surgery on Insulin Resistance &CVDU01DK066585 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI COURCOULAS, ANITA P · 2003 to 2013
$5.0M
Bariatric Surgery: Outcomes & Impact on PathophysiologyU01DK066667 · NIDDK · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI BERK, PAUL DAVID, POMP, ALFONS · 2003 to 2015
$4.7M
Longtitudinal Assessment of Bariatric Surgery (LABS)U01DK066568 · NIDDK · UNIVERSITY OF WASHINGTON · PI FLUM, DAVID R · 2003 to 2013
$4.3M
East Carolina University Bariatric Surgery Clinical CenterU01DK066526 · NIDDK · EAST CAROLINA UNIVERSITY · PI PORIES, WALTER JULIUS · 2003 to 2015
$4.0M
Longitudinal Assessment of Bariatric Surgery (LABS)U01DK066471 · NIDDK · SANFORD RESEARCH NORTH · PI MITCHELL, JAMES EDWARD · 2003 to 2015
$3.7M
NCATS NIH HHS UL1 TR000005NCATS NIH HHS UL1 TR000457NCRR NIH HHS M01 RR000037NCRR NIH HHS M01RR-00037NCRR NIH HHS UL1 RR024153NCRR NIH HHS UL1-RR024153NCRR NIH HHS UL1 RR024996NCRR NIH HHS UL1-RR024996NIDDK NIH HHS R01 DK097449NIDDK NIH HHS U01 DK066471NIDDK NIH HHS U01 DK066526NIDDK NIH HHS U01 DK066555NIDDK NIH HHS U01 DK066557NIDDK NIH HHS U01-DK066557NIDDK NIH HHS U01 DK066568NIDDK NIH HHS U01 DK066585NIDDK NIH HHS U01 DK066667NIDDK NIH HHS U01-DK66471NIDDK NIH HHS U01-DK66526NIDDK NIH HHS U01-DK66555NIDDK NIH HHS U01-DK66568NIDDK NIH HHS U01-DK66585NIDDK NIH HHS U01-DK66667
6 · The paper itself

Abstract

backgroundAlthough it is recognized that a standardized approach to reporting weight change is essential to meaningful comparisons among cohorts and across studies, consensus is lacking. This study aimed to propose a method of reporting weight change that would allow meaningful comparisons among studies of patients who underwent bariatric surgery and to demonstrate its utility using an example from the Longitudinal Assessment of Bariatric Surgery (LABS).

methodsRelationships among several measures of weight change are described. Results from an observational, longitudinal cohort study of adults undergoing bariatric surgery and from simulation studies are used to illustrate the proposed method.

resultsBaseline weight is a critical parameter when assessing weight change. Men undergoing a bariatric procedure other than gastric bypass or adjustable band tended to have greater weight loss 12 months after surgery than men undergoing gastric bypass when not accounting for baseline weight, but the opposite was found when results were adjusted for baseline weight. Simulation results show that with relatively modest sample sizes, the adjusted weight loss was significantly different between the 2 groups of men.

conclusionA consistent metric for reporting weight loss after bariatric surgery is essential to interpret outcomes across studies and among subgroups. The baseline weight adjusted percent of weight loss (A%WL) uses a standard population (e.g., the LABS cohort) to account for differences between cohorts with respect to baseline weight, and its use can change the interpretation of results compared with an unadjusted measure.

Indexed as

Weight LossAdultBariatric SurgeryBody Weights and MeasuresFemaleHumansLongitudinal StudiesMaleObesity, MorbidUnited StatesBariatric surgeryObesityWeight change

Identifiers

PMID23337770
PMCPMC3686891
OpenAlexW2003403582

What OpenQuestion holds

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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.