2013
Household Levels of Nitrogen Dioxide and Pediatric Asthma Severity
Belanger K, Holford TR, Gent JF, Hill ME, Kezik JM, Leaderer BP. Household Levels of Nitrogen Dioxide and Pediatric Asthma Severity. Epidemiology 2013, 24: 320-330. PMID: 23337243, PMCID: PMC3686297, DOI: 10.1097/ede.0b013e318280e2ac.Peer-Reviewed Original ResearchConceptsAsthma severityNight symptomsAsthma morbiditySeverity scoreNO2 exposureHigher asthma severity scoresFrequency of wheezeIndoor NO2 exposurePediatric asthma severityRescue medication useIndoor allergen exposureAsthma severity scoreAdverse respiratory effectsDose-dependent increaseYears of ageInner-city childrenLogistic regression modelsRescue medicationActive asthmaAllergen exposureAsthmatic childrenMedication useRespiratory effectsChildren 5Health outcomes
2012
Household mold and dust allergens: Exposure, sensitization and childhood asthma morbidity
Gent JF, Kezik JM, Hill ME, Tsai E, Li DW, Leaderer BP. Household mold and dust allergens: Exposure, sensitization and childhood asthma morbidity. Environmental Research 2012, 118: 86-93. PMID: 22863552, PMCID: PMC3604733, DOI: 10.1016/j.envres.2012.07.005.Peer-Reviewed Original ResearchMeSH KeywordsAllergensAsthmaChildChild, PreschoolDustEnvironmental ExposureFemaleFungiHumansMaleResidence CharacteristicsConceptsRisk of wheezeSpecific allergen sensitizationRescue medication useChildhood asthma morbidityAsthma severity scoreMedication useAllergen sensitizationPersistent coughAsthma morbiditySeverity scoreHigher asthma severity scoresCommon household allergensCommon indoor allergensFel d 1Der p 1Asthma exacerbationsAllergen exposureLevel of exposureAsthmatic childrenDer pAllergy testingIndoor allergensSchool-aged childrenPet allergensDust allergensAn environmental epigenetic study of ADRB2 5′‐UTR methylation and childhood asthma severity
Fu A, Leaderer BP, Gent JF, Leaderer D, Zhu Y. An environmental epigenetic study of ADRB2 5′‐UTR methylation and childhood asthma severity. Clinical & Experimental Allergy 2012, 42: 1575-1581. PMID: 22862293, PMCID: PMC3673701, DOI: 10.1111/j.1365-2222.2012.04055.x.Peer-Reviewed Original ResearchConceptsChildhood asthma severityAsthma severitySevere asthmaSignificant associationSevere childhood asthmaBeta-agonist treatmentBeta-2 adrenergic receptorsImportant environmental exposuresAsthma exacerbationsAsthma medicationsMild asthmaChildhood asthmaSurrogate biomarkerMethylation-specific PCRPotential joint effectsClinical relevanceAdrenergic receptorsAsthmaADRB2SeverityEnvironmental exposuresIndoor exposureChildrenAssociationBloodEffects of Ambient Pollen Concentrations on Frequency and Severity of Asthma Symptoms Among Asthmatic Children
DellaValle CT, Triche EW, Leaderer BP, Bell ML. Effects of Ambient Pollen Concentrations on Frequency and Severity of Asthma Symptoms Among Asthmatic Children. Epidemiology 2012, 23: 55-63. PMID: 22082997, PMCID: PMC3246281, DOI: 10.1097/ede.0b013e31823b66b8.Peer-Reviewed Original ResearchConceptsShortness of breathRescue medication useAsthma maintenance medicationsMaintenance medicationPersistent coughSensitized childrenChest tightnessNight symptomsAsthmatic childrenMedication usePollen exposureSeverity of asthmaDaily respiratory symptomsWeed pollenLogistic regression analysisLow exposureSeparate logistic regression analysesAsthmatic symptomsRespiratory symptomsDaily symptomsAntibiotic useSymptom outcomesDaily ambientMedicationsAmbient pollen concentrations
2011
Association of maternal anemia with increased wheeze and asthma in children
Triche EW, Lundsberg LS, Wickner PG, Belanger K, Leaderer BP, Bracken MB. Association of maternal anemia with increased wheeze and asthma in children. Annals Of Allergy Asthma & Immunology 2011, 106: 131-139.e1. PMID: 21277514, PMCID: PMC3073499, DOI: 10.1016/j.anai.2010.11.007.Peer-Reviewed Original ResearchMeSH KeywordsAnemiaAsthmaChildChild, PreschoolCohort StudiesFemaleHumansInfantMalePregnancyPregnancy Complications, HematologicRespiratory SoundsConceptsMaternal anemiaEarly-onset transientRespiratory health outcomesChildren of womenOffspring of mothersRespiratory disease developmentChildren of mothersYears of ageEarly childhoodAge 3Delivery hospitalizationsRecurrent wheezeCurrent asthmaAsthma diagnosisChildhood asthmaInfant wheezeMaternal nutritionRespiratory healthWheezeAsthmaAnemiaHealth outcomesPregnancyAnemia diagnosisMicronutrient status
2009
Symptoms and Medication Use in Children with Asthma and Traffic-Related Sources of Fine Particle Pollution
Gent JF, Koutrakis P, Belanger K, Triche E, Holford TR, Bracken MB, Leaderer BP. Symptoms and Medication Use in Children with Asthma and Traffic-Related Sources of Fine Particle Pollution. Environmental Health Perspectives 2009, 117: 1168-1174. PMID: 19654929, PMCID: PMC2717146, DOI: 10.1289/ehp.0800335.Peer-Reviewed Original ResearchMeSH KeywordsAnti-Asthmatic AgentsAsthmaChildChild, PreschoolFemaleHumansLogistic ModelsMaleParticle SizeParticulate MatterVehicle EmissionsConceptsMedication useInhaler useLikelihood of wheezeExacerbation of asthmaMeasures logistic regression modelsRisk of symptomsRespiratory health effectsYears of ageHealth outcomes riskLikelihood of symptomsLogistic regression modelsAsthma 4Outcome riskAsthmaHealth outcomesDaily exposureSymptomsHealth effectsStudy diariesParticle exposureHealth impactsChildrenPublic healthExposureRegression models
2006
Comparison of parental reports of smoking and residential air nicotine concentrations in children
Gehring U, Leaderer B, Heinrich J, Oldenwening M, Giovannangelo M, Nordling E, Merkel G, Hoek G, Bellander T, Brunekreef B. Comparison of parental reports of smoking and residential air nicotine concentrations in children. Occupational And Environmental Medicine 2006, 63: 766. PMID: 16912089, PMCID: PMC2077986, DOI: 10.1136/oem.2006.027151.Peer-Reviewed Original ResearchConceptsAir nicotine concentrationsEnvironmental tobacco smokeUrinary cotinine measurementsNicotine concentrationsETS exposureResidential exposureCotinine measurementsPredictive valueAir nicotine levelsUrinary cotinine levelsUrinary cotinine concentrationsChildren's residential exposureQuestionnaire reportsDose-response fashionResidential ETS exposureNegative predictive valuePositive predictive valueAir nicotineCotinine levelsCotinine concentrationsSymptomatic childrenOccasional smokersSymptom statusTobacco smokeNicotine levels
2001
Use of Health Services by Insurance Status Among Children With Asthma
Ortega A, Belanger K, Paltiel A, Horwitz S, Bracken M, Leaderer B. Use of Health Services by Insurance Status Among Children With Asthma. Medical Care 2001, 39: 1065-1074. PMID: 11567169, DOI: 10.1097/00005650-200110000-00004.Peer-Reviewed Original ResearchConceptsPrimary care visitsHealth care useEmergency departmentInsurance statusCare visitsAsthmatic childrenMedication useCare useAsthma-related risk factorsRoutine primary care visitsProspective cohort studyHealth care visitsHealth care utilizationChildhood asthma severityPatient-provider communicationWhite childrenMedical DictionaryNew England hospitalsRace/ethnicityAsthma specialistCohort studyMedicaid childrenAsthma severityIndependent predictorsCare utilizationA childhood asthma severity scale: symptoms, medications, and health care visits
Ortega A, Belanger K, Bracken M, Leaderer B. A childhood asthma severity scale: symptoms, medications, and health care visits. Annals Of Allergy Asthma & Immunology 2001, 86: 405-413. PMID: 11345283, DOI: 10.1016/s1081-1206(10)62486-6.Peer-Reviewed Original ResearchConceptsHealth care visitsChildhood asthma severityCare visitsAsthma severityLarge-scale epidemiologic studiesAsthma severity scaleMedication useSeverity ScaleEpidemiologic studiesHome interviewsProspective cohort studyHealth care utilizationCohort studyAsthmatic childrenCare utilizationDaily symptomsInsurance statusConnecticut hospitalsGeneral populationClinimetric propertiesClinimetric validityMaternal educationClinical diagnosisParticipant characteristicsSymptoms