Evidence map›Paper›PMID 17384778›Full record

ArticleEnvironmental health perspectives2007

A comparison of proximity and land use regression traffic exposure models and wheezing in infants.

Patrick H Ryan, Grace K Lemasters, Pratim Biswas, Linda Levin, Shaohua Hu, Mark Lindsey, David I Bernstein, James Lockey, Manuel Villareal, Gurjit K Khurana Hershey and 1 more

Abstract readComparative Study
In one paragraph

Article in Environmental health perspectives, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
87citing 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

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

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  17. Early-life exposure to traffic-related air pollution and child anthropometry.Environmental epidemiology (Philadelphia, Pa.) · 2019
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27 more citing papers are in PubMed but not listed here.

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

11 authors.

Patrick H RyanDepartment of Environmental Health, University of Cincinnati Medical Center, Cincinnati, Ohio 45267, USA. patrick.ryan@uc.edu
Grace K Lemasters
Pratim Biswas
Linda Levin
Shaohua Hu
Mark Lindsey
David I Bernstein
James Lockey
Manuel Villareal
Gurjit K Khurana Hershey
Sergey A Grinshpun

Funding

Molecular Epidemiology in Children's Environmental Health Training Program (MECEH)T32ES010957 · NIEHS · UNIVERSITY OF CINCINNATI · PI Kelly J Brunst · 2001 to 2026
$11.1M
Diesel, Allergens and Gene Interaction and Child AtopyR01ES011170 · NIEHS · UNIVERSITY OF CINCINNATI · PI LEMASTERS, GRACE · 2001 to 2009
$10.4M
NIEHS NIH HHS ES10957NIEHS NIH HHS ES11170NIEHS NIH HHS R01 ES011170NIEHS NIH HHS T32 ES010957
6 · The paper itself

Abstract

backgroundWe previously reported an association between infant wheezing and residence < 100 m from stop-and-go bus and truck traffic. The use of a proximity model, however, may lead to exposure misclassification.

objectiveResults obtained from a land use regression (LUR) model of exposure to truck and bus traffic are compared with those obtained with a proximity model. The estimates derived from the LUR model were then related to infant wheezing.

methodsWe derived a marker of diesel combustion--elemental carbon attributable to traffic sources (ECAT)--from ambient monitoring results of particulate matter with aerodynamic diameter < 2.5 microm. We developed a multiple regression model with ECAT as the outcome variable. Variables included in the model were locations of major roads, bus routes, truck traffic count, and elevation. Model parameter estimates were applied to estimate individual ECAT levels at infants' homes.

resultsThe levels of estimated ECAT at the monitoring stations ranged from 0.20 to 1.02 microg/m(3). A LUR model of exposure with a coefficient of determination (R(2)) of 0.75 was applied to infants' homes. The mean (+/- SD) ambient exposure of ECAT for infants previously categorized as unexposed, exposed to stop-and-go traffic, or exposed to moving traffic was 0.32 +/- 0.06, 0.42 +/- 0.14, and 0.49 +/- 0.14 microg/m(3), respectively. Levels of ECAT from 0.30 to 0.90 mug/m(3) were significantly associated with infant wheezing.

conclusionsThe LUR model resulted in a range of ECAT individually derived for all infants' homes that may reduce the exposure misclassification that can arise from a proximity model.

Indexed as

Environmental ExposureAir PollutantsCarbonCohort StudiesEnvironmental MonitoringHousingHumansInfantModels, BiologicalModels, ChemicalParticle SizeRegression AnalysisRespiratory SoundsRisk FactorsVehicle EmissionsAir PollutantsCarbonVehicle Emissions

Identifiers

PMID17384778
PMCPMC1817699

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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.