Evidence map›Paper›PMID 30449294›Full record

Observational studyPublic health nutrition2019

Accuracy of self-reported weight in the Women's Health Initiative.

Juhua Luo, Cynthia A Thomson, Michael Hendryx, Lesley F Tinker, JoAnn E Manson, Yueyao Li, Dorothy A Nelson, Mara Z Vitolins, Rebecca A Seguin, Charles B Eaton and 2 more

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Public health nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing 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

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

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  14. The impact of isolated obesity compared with obesity and other risk factors on risk of stillbirth: a retrospective cohort study.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2024
    Article
  15. Diet Quality and Body Mass Index Over 20 Years in the Multiethnic Cohort.Journal of the Academy of Nutrition and Dietetics · 2024
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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

12 authors.

Juhua Luo1Department of Epidemiology and Biostatistics,School of Public Health, Indiana University Bloomington,1025 E. 7th Street, Bloomington, IN 47405,USA.
Cynthia A Thomson2Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health,University of Arizona,Tucson, AZ,USA.
Michael Hendryx3Department of Environmental and Occupational Health, School of Public Health,Indiana University Bloomington,Bloomington, IN,USA.
Lesley F Tinker4Fred Hutchinson Cancer Research Center,Division of Public Health Science, Seattle, WA,USA.
JoAnn E Manson5Division of Preventive Medicine, Brigham and Women's Hospital,Harvard Medical School, Boston, MA,USA.
Yueyao Li1Department of Epidemiology and Biostatistics,School of Public Health, Indiana University Bloomington,1025 E. 7th Street, Bloomington, IN 47405,USA.
Dorothy A Nelson6Department of Sociology, Anthropology, Social Work and Criminal Justice,Oakland University,Rochester, MI,USA.
Mara Z Vitolins7Wake Forest School of Medicine,Wake Forest University,Winston-Salem, NC,USA.
Rebecca A Seguin8Division of Nutritional Sciences, College of Human Ecology,Cornell University,Ithaca, NY,USA.
Charles B Eaton9Department of Family Medicine, Warren Alpert Medical School,Brown University,Providence, RI,USA.
Jean Wactawski-Wende11Department of Epidemiology and Environmental Health,University at Buffalo School of Public Health and Health Professions,Buffalo, NY,USA.
Karen L Margolis12HealthPartners Institute,Minneapolis, MN,USA.

Funding

NHLBI NIH HHS HHSN268201600001CNHLBI NIH HHS HHSN268201600002CNHLBI NIH HHS HHSN268201600003CNHLBI NIH HHS HHSN268201600004CNHLBI NIH HHS HHSN268201600018C
6 · The paper itself

Abstract

objectiveTo assess the extent of error present in self-reported weight data in the Women's Health Initiative, variables that may be associated with error, and to develop methods to reduce any identified error.

designProspective cohort study.

settingForty clinical centres in the USA.ParticipantsWomen (n 75 336) participating in the Women's Health Initiative Observational Study (WHI-OS) and women (n 6236) participating in the WHI Long Life Study (LLS) with self-reported and measured weight collected about 20 years later (2013-2014).

resultsThe correlation between self-reported and measured weights was 0·97. On average, women under-reported their weight by about 2 lb (0·91 kg). The discrepancies varied by age, race/ethnicity, education and BMI. Compared with normal-weight women, underweight women over-reported their weight by 3·86 lb (1·75 kg) and obese women under-reported their weight by 4·18 lb (1·90 kg) on average. The higher the degree of excess weight, the greater the under-reporting of weight. Adjusting self-reported weight for an individual's age, race/ethnicity and education yielded an identical average weight to that measured.

conclusionsCorrelations between self-reported and measured weights in the WHI are high. Discrepancies varied by different sociodemographic characteristics, especially an individual's BMI. Correction of self-reported weight for individual characteristics could improve the accuracy of assessment of obesity status in postmenopausal women.

Indexed as

Body WeightAgedAge FactorsBody Mass IndexCohort StudiesEducational StatusEthnicityFemaleHumansMiddle AgedProspective StudiesRacial GroupsReproducibility of ResultsSelf ReportUnited StatesAccuracyMeasured weightSelf-reported weightValidation

Identifiers

PMID30449294
PMCPMC10260511

What OpenQuestion holds

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Registered trials

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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.