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 studiesMortalityIndividual and regional characteristics associated with changes in mental health before and during the COVID-19 pandemic in South Korea
Min J, Kwon D, Lee W, Kang C, Park C, Heo S, Bell M, Kim H. Individual and regional characteristics associated with changes in mental health before and during the COVID-19 pandemic in South Korea. Scientific Reports 2022, 12: 14189. PMID: 35986083, PMCID: PMC9390104, DOI: 10.1038/s41598-022-18493-1.Peer-Reviewed Original ResearchConceptsMental healthCOVID-19 pandemicMajor public health concernPublic health concernMental health outcomesMental health consequencesEpidemiological evidencePhysical activityHealth outcomesHigher household incomeHealth consequencesHealth concernHigher education levelCOVID-19DepressionPositive associationTime trendsPrevalenceHealthEducation levelModerate stressPandemicExtreme stressAssociationHousehold income
2020
COVID-19 in South Korea: epidemiological and spatiotemporal patterns of the spread and the role of aggressive diagnostic tests in the early phase
Lee W, Hwang SS, Song I, Park C, Kim H, Song IK, Choi HM, Prifti K, Kwon Y, Kim J, Oh S, Yang J, Cha M, Kim Y, Bell ML, Kim H. COVID-19 in South Korea: epidemiological and spatiotemporal patterns of the spread and the role of aggressive diagnostic tests in the early phase. International Journal Of Epidemiology 2020, 49: 1106-1116. PMID: 32754756, PMCID: PMC7454567, DOI: 10.1093/ije/dyaa119.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overBetacoronavirusChildChild, PreschoolClinical Laboratory TechniquesCoronavirusCoronavirus InfectionsCOVID-19COVID-19 TestingDiagnostic Tests, RoutineDisease OutbreaksHumansInfantInfant, NewbornMiddle AgedMortalityPandemicsPneumonia, ViralRepublic of KoreaSARS-CoV-2Spatio-Temporal AnalysisConceptsCOVID-19Aggressive diagnostic testsCase fatality rateNovel coronavirus disease (COVID-19) outbreakWidespread diagnostic testingEpidemic doubling timeSevere patientsCoronavirus disease (COVID-19) outbreakPatient care systemsInitial RTFatality rateTreatment policyDiagnostic testingFatality patternsDiagnostic testsDaily reproduction numberCare systemUnprecedented pandemicAggressive testingEarly epidemic phaseMedical resourcesEpidemic phaseEarly phaseDaysDisease outbreaks