Evidence map›Paper›PMID 29388385›Full record

Trial reportObesity (Silver Spring, Md.)2018

Randomized Controlled Trial Examining the Ripple Effect of a Nationally Available Weight Management Program on Untreated Spouses.

Amy A Gorin, Erin M Lenz, Talea Cornelius, Tania Huedo-Medina, Alexis C Wojtanowski, Gary D Foster

Open access · hybridAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Obesity (Silver Spring, Md.), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
8.1field-weighted citation impact, top 2% 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

27 citing papers in PubMed, 35 citations in OpenAlex.

  1. The Role of Household Social Support and Undermining in Dietary Change.International journal of behavioral medicine · 2026
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  3. Emotional distress in neuro-ICU survivor-caregiver dyads: The recovering together randomized clinical trial.Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 2022
    Trial
  4. Trial
  5. A randomized controlled trial of a theory-based weight-loss program for couples.Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 2020
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  6. How prescriptive support affects weight loss in weight-loss intervention participants and their untreated spouses.Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 2018
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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

6 authors at 2 institutions in 2 countries.

Amy A GorinDepartment of Psychological Sciences and the Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, Storrs, Connecticut, USA.ORCID 0000-0002-1033-7163
Erin M LenzDepartment of Psychological Sciences and the Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, Storrs, Connecticut, USA.
Talea CorneliusDepartment of Psychological Sciences and the Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, Storrs, Connecticut, USA.
Tania Huedo-MedinaDepartment of Allied Health Sciences, University of Connecticut, Storrs, Connecticut, USA.
Alexis C WojtanowskiWeight Watchers International, Inc., New York, New York, USA.
Gary D FosterWeight Watchers International, Inc., New York, New York, USA.
University of Connecticut · USWetlands International · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveFor married couples, when one spouse participates in weight loss treatment, the untreated spouse can also experience weight loss. This study examined this ripple effect in a nationally available weight management program.

methodsOne hundred thirty dyads were randomized to Weight Watchers (WW; n = 65) or to a self-guided control group (SG; n = 65) and assessed at 0, 3, and 6 months. Inclusion criteria were age ≥ 25 years, BMI 27 to 40 kg/m

resultsUntreated spouses lost weight at 3 months (WW = -1.5 ± 2.9 kg; SG = -1.1 ± 3.3 kg) and 6 months (WW = -2.2 ± 4.2 kg; SG = -1.9 ± 3.6 kg), but weight losses did not differ by condition. Overall, 32.0% of untreated spouses lost ≥ 3% of initial body weight by 6 months. Baseline weight was significantly correlated within couples (r = 0.26; P < 0.01) as were weight loss trajectories (r = 0.52; P < 0.001).

conclusionsEvidence of a ripple effect was found in untreated spouses in both formal and self-guided weight management approaches. These data suggest that weight loss can spread within couples, and that widely available lifestyle programs have weight loss effects beyond the treated individual.

Indexed as

FemaleHumansMaleMiddle AgedObesitySpousesWeight LossWeight Reduction Programs

Identifiers

PMID29388385
PMCPMC5838794
OpenAlexW2793997202

What OpenQuestion holds

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LicenceCC BY-NC
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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.