Evidence map›Paper›PMID 25625785›Full record

SynthesisEnvironmental health perspectives2015

Air pollution and atherosclerosis: a cross-sectional analysis of four European cohort studies in the ESCAPE study.

Laura Perez, Kathrin Wolf, Frauke Hennig, Johanna Penell, Xavier Basagaña, Maria Foraster, Inmaculada Aguilera, David Agis, Rob Beelen, Bert Brunekreef and 23 more

Open access · diamondAbstract readMeta-Analysis
In one paragraph

Synthesis in Environmental health perspectives, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
6.2field-weighted citation impact, top 3% 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

32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 82 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Risk of PMiScience · 2026
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  10. Toxicologic Concerns with Current Medical Nanoparticles.International journal of molecular sciences · 2022
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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

33 authors at 14 institutions in 8 countries.

Laura PerezSwiss Tropical and Public Health Institute, Basel, Switzerland.
Kathrin Wolf
Frauke Hennig
Johanna Penell
Xavier Basagaña
Maria Foraster
Inmaculada Aguilera
David Agis
Rob Beelen
Bert Brunekreef
Josef Cyrys
Kateryna B Fuks
Martin Adam
Damiano Baldassarre
Marta Cirach
Roberto Elosua
Julia Dratva
Regina Hampel
Wolfgang Koenig
Jaume Marrugat
Ulf de Faire
Göran Pershagen
Nicole M Probst-Hensch
Audrey de Nazelle
Mark J Nieuwenhuijsen
Wolfgang Rathmann
Marcela Rivera
Jochen Seissler
Christian Schindler
Joachim Thiery
Barbara Hoffmann
Annette Peters
Nino Künzli
Swiss Tropical and Public Health Institute · CHCenter for Research in Environmental Epidemiology · ESHelmholtz Zentrum München · DEKarolinska Institutet · SELeibniz Institute of Environmental Medicine · DEMunicipal Institute for Medical Research · ESUtrecht University · NLDeutsches Diabetes-Zentrum e.V. · DEImperial College London · GBLeipzig University · DEUniversität Ulm · DEUniversité de Montréal · CAUniversity of Augsburg · DEUniversity of Milan · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn four European cohorts, we investigated the cross-sectional association between long-term exposure to air pollution and intima-media thickness of the common carotid artery (CIMT), a preclinical marker of atherosclerosis.

methodsIndividually assigned levels of nitrogen dioxide, nitrogen oxides, particulate matter ≤ 2.5 μm (PM2.5), absorbance of PM2.5 (PM2.5abs), PM10, PMcoarse, and two indicators of residential proximity to highly trafficked roads were obtained under a standard exposure protocol (European Study of Cohorts for Air Pollution Effects-ESCAPE study) in the Stockholm area (Sweden), the Ausburg and Ruhr area (Germany), and the Girona area (Spain). We used linear regression and meta-analyses to examine the association between long-term exposure to air pollution and CIMT.

resultsThe meta-analysis with 9,183 individuals resulted in an estimated increase in CIMT (geometric mean) of 0.72% (95% CI: -0.65%, 2.10%) per 5-μg/m3 increase in PM2.5 and 0.42% (95% CI: -0.46%, 1.30%) per 10-5/m increase in PM2.5abs. Living in proximity to high traffic was also positively but not significantly associated with CIMT. Meta-analytic estimates for other pollutants were inconsistent. Results were similar across different adjustment sets and sensitivity analyses. In an extended meta-analysis for PM2.5 with three other previously published studies, a 0.78% (95% CI: -0.18%, 1.75%) increase in CIMT was estimated for a 5-μg/m3 contrast in PM2.5.

conclusionsUsing a standardized exposure and analytical protocol in four European cohorts, we found that cross-sectional associations between CIMT and the eight ESCAPE markers of long-term residential air pollution exposure did not reach statistical significance. The additional meta-analysis of CIMT and PM2.5 across all published studies also was positive but not significant.

Indexed as

Carotid Intima-Media ThicknessEnvironmental ExposureAdultAgedAir PollutionAtherosclerosisBiomarkersCohort StudiesCross-Sectional StudiesEuropeFemaleHumansMaleMiddle AgedBiomarkers

Identifiers

PMID25625785
PMCPMC4455580
OpenAlexW2095740972

What OpenQuestion holds

Textmetadata
LicenceCC0
Read underepoch 390

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.