Evidence map›Paper›PMID 25894925›Full record

ArticleBehavior genetics2015

Behavioral and Environmental Modification of the Genetic Influence on Body Mass Index: A Twin Study.

Erin E Horn, Eric Turkheimer, Eric Strachan, Glen E Duncan

Abstract readTwin Study
In one paragraph

Article in Behavior genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

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

  1. Pooled it
  2. Neurobehavioral correlates of obesity are largely heritable.Proceedings of the National Academy of Sciences of the United States of America · 2018
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  11. Genes · 2019
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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.

Erin E HornDepartment of Psychology, University of Virginia, Charlottesville, VA, USA, horn@virginia.edu.
Eric Turkheimer
Eric Strachan
Glen E Duncan

Funding

Building a Unique National Community Based Twin RepositoryRC2HL103416 · NHLBI · UNIVERSITY OF WASHINGTON · PI BUCHWALD, DEDRA S · 2009 to 2010
$7.7M
TWINStudy of Environment, Lifestyle Behaviors, and HealthR01AG042176 · NIA · WASHINGTON STATE UNIVERSITY · PI DUNCAN, GLEN E · 2011 to 2014
$2.2M
NHLBI NIH HHS RC2 HL103416NIA NIH HHS R01 AG042176
6 · The paper itself

Abstract

Body mass index (BMI) has a strong genetic basis, with a heritability around 0.75, but is also influenced by numerous behavioral and environmental factors. Aspects of the built environment (e.g., environmental walkability) are hypothesized to influence obesity by directly affecting BMI, by facilitating or inhibiting behaviors such as physical activity that are related to BMI, or by suppressing genetic tendencies toward higher BMI. The present study investigated relative influences of physical activity and walkability on variance in BMI using 5079 same-sex adult twin pairs (70 % monozygotic, 65 % female). High activity and walkability levels independently suppressed genetic variance in BMI. Estimating their effects simultaneously, however, suggested that the walkability effect was mediated by activity. The suppressive effect of activity on variance in BMI was present even with a tendency for low-BMI individuals to select into environments that require higher activity levels. Overall, our results point to community- or macro-level interventions that facilitate individual-level behaviors as a plausible approach to addressing the obesity epidemic among US adults.

Indexed as

Body Mass IndexEnvironmentGenetic Predisposition to DiseaseWalkingAdolescentAdultAgedAged, 80 and overCross-Sectional StudiesDiseases in TwinsEnvironment DesignFemaleGenetics, BehavioralGenetic VariationHumansMale

Identifiers

PMID25894925
PMCPMC4459891

What OpenQuestion holds

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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.