2003
Association of Low-Level Ozone and Fine Particles With Respiratory Symptoms in Children With Asthma
Gent JF, Triche EW, Holford TR, Belanger K, Bracken MB, Beckett WS, Leaderer BP. Association of Low-Level Ozone and Fine Particles With Respiratory Symptoms in Children With Asthma. JAMA 2003, 290: 1859-1867. PMID: 14532314, DOI: 10.1001/jama.290.14.1859.Peer-Reviewed Original ResearchConceptsRescue medication useRespiratory symptomsDaily respiratory symptomsMedication useMaintenance medicationLikelihood of wheezeShortness of breathLogistic regression analysisRescue medicationChest tightnessActive asthmaAsthmatic childrenMedication usersRisk factorsAsthmaMedicationsSymptomsMean levelsSubject's motherChildrenRegression analysisAssociationExposureMothersHigh levels
1999
Healthy Women's PEF Variations with Ambient Summer Concentrations of PM10, PM2.5, SO4 2 −, H+, and O3
NAEHER L, HOLFORD T, BECKETT W, BELANGER K, TRICHE E, BRACKEN M, LEADERER B. Healthy Women's PEF Variations with Ambient Summer Concentrations of PM10, PM2.5, SO4 2 −, H+, and O3. American Journal Of Respiratory And Critical Care Medicine 1999, 160: 117-125. PMID: 10390388, DOI: 10.1164/ajrccm.160.1.9808153.Peer-Reviewed Original ResearchConceptsPeak expiratory flowPEF variationEvening peak expiratory flowMorning peak expiratory flowOutdoor monitoring sitePeak flow meterAmbient air pollutionMicrograms/m3Expiratory flowPhysiologic effectsPEF measurementsOnly exposureConcurrent measuresExposureMeteorologic variablesFine particulate sulfateDaily