Evidence map›Paper›PMID 24886128›Full record

Trial reportBMC medical research methodology2014

Validation of self-reported weights and heights in the avoiding diabetes after pregnancy trial (ADAPT).

Kathryn A Paez, Susan J Griffey, Jennifer Thompson, Matthew W Gillman

Registry-linked trialOpen access · goldAbstract readClinical TrialValidation Study
In one paragraph

Trial report in BMC medical research methodology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01923350 (Increasing Adoption of Early Intervention to Prevent Diabetes After Gestational Diabetes Mellitus), which is not on this map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 20% 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.

NCT01923350 nacompletednot on this map

Increasing Adoption of Early Intervention to Prevent Diabetes After Gestational Diabetes Mellitus

TypeinterventionalSponsorSocial & Scientific Systems Inc.Ran2011 to 2013Enrolled140ConditionsWeight ReductionArmsWeight Reduction Intervention, Weight Reduction Control Arm, Tested for diabetes, Not tested for diabetes
3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 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

4 authors at 4 institutions in 1 country.

Kathryn A Paez
Susan J GriffeySocial & Scientific Systems, Inc, Silver Spring, MD, USA. sgriffey@s-3.com.
Jennifer Thompson
Matthew W Gillman
American Institutes for Research · USHarvard Pilgrim Health Care · USHarvard University · USSocial and Scientific Systems (United States) · US

Funding

PHS HHS GS10F0381LPHS HHS HHSN276201000389U
6 · The paper itself

Abstract

backgroundRandomized controlled trials that test the effectiveness of mobile health-based weight loss programs are attractive to participants, funders, and researchers because of the low implementation cost, minimal participant burden, and the ability to recruit participants from longer distances. Collecting weight data from geographically dispersed participants is a challenge. Relying on participant self-report is one approach to data collection, but epidemiologic studies indicate that self-reported anthropometric data may be inaccurate.

methodsWe provided women enrolled in a randomized controlled trial (RCT) of postpartum weight loss after gestational diabetes with a digital scale and training to collect and report weight via a web-based survey. To validate self-reported weights and heights, we visited 30 randomly selected women in their homes, with a reference scale and stadiometer, a mean of 34 days after the self-report. We ran linear regression models to identify characteristics that were associated with underreporting or overreporting of anthropometric measures.

resultsOf the 30 women we visited, 11 women (37%) were assigned to the weight loss intervention group and 19 women (63%) were in the control group. Mean age was 38.5 years (SD 4.5). The overall mean difference between participants' self-reported weights and the weights obtained at their home visit was 0.70 kg (+1.92). Women assigned to the intervention group underreported their weight in comparison with the control group by 1.29 kg (95% CI -2.52, -0.06). The overall difference in collected to self-reported height was -0.56 cm (±1.91). No characteristics were associated with underreporting or overreporting of height.

conclusionsOur research suggests that by providing a digital scale and developing a weight collection protocol, researchers can train women to collect and record their own study weights with reasonable validity. To achieve the level of validity required for clinical trials, researchers should consider additional strategies to assure the validity of the data.

trial registrationNCT01923350.

Indexed as

Body HeightBody WeightSelf ReportAdultData CollectionDiabetes, GestationalFemaleHumansPregnancyRandom AllocationWeight Loss

Identifiers

PMID24886128
PMCPMC4024012
OpenAlexW2162285452

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

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.