2024
Air pollution changes due to COVID-19 lockdowns and attributable mortality changes in four countries
Ma Y, Nobile F, Marb A, Dubrow R, Kinney P, Peters A, Stafoggia M, Breitner S, Chen K. Air pollution changes due to COVID-19 lockdowns and attributable mortality changes in four countries. Environment International 2024, 187: 108668. PMID: 38640613, DOI: 10.1016/j.envint.2024.108668.Peer-Reviewed Original ResearchConceptsMeteorological normalization techniqueAir pollution changesFine particulate matterImprove air qualityEmission control strategiesCentral-southern ItalyPollution changesParticulate matterRegion-specific estimatesAir qualityMeteorological impactsAir pollutionPollutionCOVID-19 lockdownModeling approachAirCaliforniaMortality changesConcentrationJiangsuEmissionTime trendsLocal characteristicsChinaMatterShort-Term Exposure to Fine Particulate Matter and Nitrogen Dioxide and Mortality in 4 Countries
Ma Y, Nobile F, Marb A, Dubrow R, Stafoggia M, Breitner S, Kinney P, Chen K. Short-Term Exposure to Fine Particulate Matter and Nitrogen Dioxide and Mortality in 4 Countries. JAMA Network Open 2024, 7: e2354607. PMID: 38427355, PMCID: PMC10907920, DOI: 10.1001/jamanetworkopen.2023.54607.Peer-Reviewed Original ResearchConceptsShort-term exposure to air pollutionExposure to air pollutionFine particulate matterCross-sectional studyAir pollutionFixed-effects modelParticulate matterShort-term exposure to PM2.5Short-term exposure to fine particulate matterNO2 concentrationsExposure to fine particulate matterMortality rateNitrogen dioxideSignificant effect modificationDaily PM2.5 concentrationsTime-varying confoundersExposure to PM2.5Health outcomesEstimate associationsMortality dataEffect modificationPM2.5 concentrationsMain OutcomesDay-to-dayCentral-southern ItalyA unified framework for assessing interaction effects among environmental exposures in epidemiologic studies: A case study on temperature, air pollution, and kidney-related conditions in New York state
Chu L, Chen K, Yang Z, Crowley S, Dubrow R. A unified framework for assessing interaction effects among environmental exposures in epidemiologic studies: A case study on temperature, air pollution, and kidney-related conditions in New York state. Environmental Research 2024, 248: 118324. PMID: 38301759, DOI: 10.1016/j.envres.2024.118324.Peer-Reviewed Original ResearchAir pollutionMultiplicative interaction effectsNew York StateEstimated health burdenCase-crossover designEvaluation of effect modificationBi-variate associationsAssess interaction effectsConditional logistic modelMeasures of exposureInteraction effectsEffect modificationPollutionExposure variablesHealth burdenEpidemiological studiesEnvironmental exposuresLog-linear modelLogistic modelInteraction termsQuantitative frameworkAirCase studyExposureAlert systemEffects of air pollution on emergency room visits for mental disorders: risks and effect modification by comorbid physical disorders and personal characteristics
Yoo E, Roberts J, Chen K. Effects of air pollution on emergency room visits for mental disorders: risks and effect modification by comorbid physical disorders and personal characteristics. Environmental Research Health 2024, 2: 025001. DOI: 10.1088/2752-5309/ad1f3f.Peer-Reviewed Original ResearchComorbid physical disordersMental disordersPhysical disordersPersonal characteristicsEffect modificationER visitsNegatively impact mental healthAssociated with ER visitsPotential effect modificationCase-crossover designPotential moderatorsEffects of air pollutionEmergency room visitsEmergency roomMental healthRespiratory diseaseDisordersLevels of air pollutionStratified analysisRoom visitsEffects of daily changesAir pollutionDemographic characteristicsVisitsPrimary diagnosis
2018
Two-way effect modifications of air pollution and air temperature on total natural and cardiovascular mortality in eight European urban areas
Chen K, Wolf K, Breitner S, Gasparrini A, Stafoggia M, Samoli E, Andersen ZJ, Bero-Bedada G, Bellander T, Hennig F, Jacquemin B, Pekkanen J, Hampel R, Cyrys J, Peters A, Schneider A, Group U. Two-way effect modifications of air pollution and air temperature on total natural and cardiovascular mortality in eight European urban areas. Environment International 2018, 116: 186-196. PMID: 29689465, DOI: 10.1016/j.envint.2018.04.021.Peer-Reviewed Original ResearchConceptsCardiovascular mortalityAmbient air pollutionShort-term associationsTemperature-mortality associationCity-specific effect estimatesEffect modificationHigh air pollutionMortality riskEpidemiological studiesInfluenza epidemicsMortalityEffect estimatesMortality effectsAir pollutionDaily mortalityAssociationDaysAir pollution levelsDistributed lag