Evidence map›Paper›PMID 34187491›Full record

ArticleEnvironmental health : a global access science source2021

Associations between exposure to perfluoroalkyl substances and body fat evaluated by DXA and MRI in 109 adolescent boys.

Mathilde Lolk Thomsen, Louise Scheutz Henriksen, Jeanette Tinggaard, Flemming Nielsen, Tina Kold Jensen, Katharina M Main

Open access · goldAbstract read
In one paragraph

Article in Environmental health : a global access science source, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 22% 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

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

  1. Pooled it
  2. Article
  3. Article
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 1 country.

Mathilde Lolk Thomsen *Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet and Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark. mathilde.lolk.thomsen@regionh.dk.ORCID 0000-0001-6722-7144
Louise Scheutz Henriksen *Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet and Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
Jeanette TinggaardDepartment of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet and Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
Flemming NielsenDepartment of Environmental Medicine, Institute of Public Health, University of Southern Denmark, Odense, Denmark.
Tina Kold JensenDepartment of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet and Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
Katharina M MainDepartment of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet and Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
University of Copenhagen · DKUniversity of Southern Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExposure to perfluoroalkyl substances (PFASs) has been associated with changes in body mass index and adiposity, but evidence is inconsistent as study design, population age, follow-up periods and exposure levels vary between studies. We investigated associations between PFAS exposure and body fat in a cross-sectional study of healthy boys.

methodsIn 109 boys (10-14 years old), magnetic resonance imaging and dual-energy X-ray absorptiometry were performed to evaluate abdominal, visceral fat, total body, android, gynoid, android/gynoid ratio, and total fat percentage standard deviation score. Serum was analysed for perfluorooctanoic acid, perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid, perfluorononanoic acid, and perfluorodecanoic acid using liquid chromatography and triple quadrupole mass spectrometry. Data were analysed by multivariate linear regression.

resultsSerum concentrations of PFASs were low. Generally, no clear associations between PFAS exposure and body fat measures were found; however, PFOS was negatively associated with abdominal fat (β = -0.18, P = 0.046), android fat (β = -0.34, P = 0.022), android/gynoid ratio (β = -0.21, P = 0.004), as well as total body fat (β = -0.21, P = 0.079) when adjusting for Tanner stage.

conclusionsOverall, we found no consistent associations between PFAS exposure and body fat. This could be due to our cross-sectional study design. Furthermore, we assessed PFAS exposure in adolescence and not in utero, which is considered a more vulnerable time window of exposure.

Indexed as

Adipose TissueAbsorptiometry, PhotonAdolescentAlkanesulfonic AcidsBiological MonitoringCaprylatesChildDecanoic AcidsEnvironmental PollutantsFluorocarbonsHumansMagnetic Resonance ImagingMaleAlkanesulfonic AcidsCaprylatesDecanoic AcidsEnvironmental PollutantsFluorocarbonsAdolescenceDual-energy X-ray absorptiometryFat percentageMagnetic resonance imagingPerfluoroalkyl substances

Identifiers

PMID34187491
PMCPMC8244201
OpenAlexW3174518482

What OpenQuestion holds

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LicenceCC BY
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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.