2023
Heat-mortality relationship in North Carolina: Comparison using different exposure methods
Choi H, Bell M. Heat-mortality relationship in North Carolina: Comparison using different exposure methods. Journal Of Exposure Science & Environmental Epidemiology 2023, 33: 637-645. PMID: 37029251, PMCID: PMC10403356, DOI: 10.1038/s41370-023-00544-y.Peer-Reviewed Original ResearchConceptsDifferent exposure methodsMortality riskHeat-mortality relationshipLower odds ratioCase-crossover analysisBackgroundMany studiesOdds ratioExposure methodHealth policyMinimum mortality temperatureRiskExposureIndividual-level dataComparability of resultsIndividual deathNorth CarolinaHeat-mortality associationsMethodsWe
2022
Association between Short-Term Exposure to Air Pollution and COVID-19 Mortality: A Population-Based Case-Crossover Study Using Individual-Level Mortality Registry Confirmed by Medical Examiners
Kim H, Samet J, Bell M. Association between Short-Term Exposure to Air Pollution and COVID-19 Mortality: A Population-Based Case-Crossover Study Using Individual-Level Mortality Registry Confirmed by Medical Examiners. Environmental Health Perspectives 2022, 130: 117006. PMID: 36367781, PMCID: PMC9651183, DOI: 10.1289/ehp10836.Peer-Reviewed Original ResearchConceptsCOVID-19 mortalityShort-term exposureCOVID-19Cook County Medical Examiner's OfficeTime-stratified case-crossover designCounty Medical Examiner's OfficeRisk of mortalityCase-crossover studyInterquartile range increaseLocation of deathCase-crossover analysisCase-crossover designDay of deathIndications of modificationMedical Examiner's OfficeAmbient air pollutionCOVID-19 deathsRace/ethnicityComorbid conditionsMortality registryPotential confoundersMortality burdenIQR increaseEpidemiological studiesMortalityLow temperature and temperature decline increase acute aortic dissection risk and burden: A nationwide case crossover analysis at hourly level among 40,270 patients
Zhang Q, Peng L, Hu J, Li H, Jiang Y, Fang W, Yan H, Chen J, Wang W, Xiang D, Su X, Yu B, Wang Y, Xu Y, Wang L, Li C, Chen Y, Zhao D, Ge W, Bell M, Gasparrini A, Ge J, Huo Y, Kan H. Low temperature and temperature decline increase acute aortic dissection risk and burden: A nationwide case crossover analysis at hourly level among 40,270 patients. The Lancet Regional Health - Western Pacific 2022, 28: 100562. PMID: 35991537, PMCID: PMC9386641, DOI: 10.1016/j.lanwpc.2022.100562.Peer-Reviewed Original ResearchAcute aortic dissectionAAD onsetDisease burdenAAD casesLife-threatening cardiovascular emergencyTime-stratified case-crossover studyAortic dissection riskCorresponding disease burdenGreat public health significanceModifiable risk factorsConditional logistic regressionCase-crossover studyLarge nationwide studyCase-crossover analysisMedical Research Council UKPublic health significanceAortic dissectionAssociation of temperatureCardiovascular emergenciesResearch Council UKRisk factorsAttributable fractionExposure-response curvesCumulative relative riskRelative risk
2017
Particulate Matter and Risk of Hospital Admission in the Kathmandu Valley, Nepal: A Case-Crossover Study
Gurung A, Son JY, Bell ML. Particulate Matter and Risk of Hospital Admission in the Kathmandu Valley, Nepal: A Case-Crossover Study. American Journal Of Epidemiology 2017, 186: 573-580. PMID: 28911012, DOI: 10.1093/aje/kwx135.Peer-Reviewed Original ResearchConceptsHealth burdenTime-stratified case-crossover analysisRisk of hospitalizationSubstantial health burdenInpatient hospitalization dataCase-crossover studyPotential effect modifiersCase-crossover analysisMajority of evidenceHospital admissionEffect modificationCardiovascular admissionsHospitalization dataM3 increaseEffect modifiersMajor hospitalsSocioeconomic statusHospitalizationAdmissionHuman health burdenKathmandu ValleyCentral data collection systemBurdenAir pollutionAerodynamic diameter
2015
Air pollution and mortality in São Paulo, Brazil: Effects of multiple pollutants and analysis of susceptible populations
Bravo MA, Son J, de Freitas CU, Gouveia N, Bell ML. Air pollution and mortality in São Paulo, Brazil: Effects of multiple pollutants and analysis of susceptible populations. Journal Of Exposure Science & Environmental Epidemiology 2015, 26: 150-161. PMID: 25586330, DOI: 10.1038/jes.2014.90.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAir PollutantsAir PollutionBrazilCarbon MonoxideCardiovascular DiseasesCase-Control StudiesDeath CertificatesEnvironmental MonitoringFemaleHumansLogistic ModelsMaleMiddle AgedNitrogen DioxideOzoneParticle SizeParticulate MatterRespiratory Tract DiseasesRisk FactorsSex DistributionSocioeconomic FactorsSulfur DioxideConceptsTime of deathSocioeconomic statusTime-stratified case-crossover analysisCase-crossover analysisResidential socioeconomic statusEducation groupHospital deathCardiovascular mortalityNon-accidental mortalityRespiratory mortalityMortality riskHigh education groupEvidence of differencesSignificant associationMortalityEffect estimatesDeathMortality effectsSusceptible populationHealth impactsAmbient monitorsIndividual-level health dataAir pollutionHealth dataAerodynamic diameter