2024
Effects 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
2021
Association between extreme temperatures and emergency room visits related to mental disorders: A multi-region time-series study in New York, USA
Yoo EH, Eum Y, Roberts JE, Gao Q, Chen K. Association between extreme temperatures and emergency room visits related to mental disorders: A multi-region time-series study in New York, USA. The Science Of The Total Environment 2021, 792: 148246. PMID: 34144243, DOI: 10.1016/j.scitotenv.2021.148246.Peer-Reviewed Original ResearchConceptsEmergency room visitsER visitsMental disordersRoom visitsShort-term exposurePotential effect modificationMental health disordersSpecific mental disordersPositive associationRace/ethnicityEffect modificationExposure-response curvesStratified analysisLag non-linear modelHealth disordersTime-series studySubstance abuseRisk estimatesAnxiety disordersVisitsDisordersMental diseasesCertain populationsSignificant differencesTime trends
2014
Influence of heat wave definitions to the added effect of heat waves on daily mortality in Nanjing, China
Chen K, Bi J, Chen J, Chen X, Huang L, Zhou L. Influence of heat wave definitions to the added effect of heat waves on daily mortality in Nanjing, China. The Science Of The Total Environment 2014, 506: 18-25. PMID: 25460935, DOI: 10.1016/j.scitotenv.2014.10.092.Peer-Reviewed Original ResearchConceptsDifferent heat wave definitionsDisease mortalityChronic obstructive pulmonary disease (COPD) mortalityIschemic heart disease mortalityLag day 2Heart disease mortalityBurden of diseaseCause-specific mortalityDaily mortalityCardiovascular mortalityStroke mortalityEffect modificationHeat wave definitionsStratified analysisRespiratory mortalityDay 2Total mortalityMortalityConsecutive daysHeat warning systemsLower educationDaysAssociationGood model fitCritical role