2025
Mortality risk and burden associated with non-optimum temperatures in Puerto Rico
Díaz-Collado F, Chu L, Carrión D, Méndez-Lázaro P, Chen K. Mortality risk and burden associated with non-optimum temperatures in Puerto Rico. Environmental Research Letters 2025, 20: 104032. PMID: 40932903, PMCID: PMC12419553, DOI: 10.1088/1748-9326/ae013e.Peer-Reviewed Original ResearchNon-optimum temperaturesMortality riskConditional quasi-Poisson regressionRisk of all-cause mortalityDaily mortality countsHealth impactsRobust epidemiological evidenceQuasi-Poisson regressionTime-series studyAll-Cause MortalityTemperature-related deathsTime riskMortality fractionsMinimum mortality temperatureMortality burdenPuerto RicoRelative riskEpidemiological evidenceMortality countsMortality temperatureDeath rateSmall Island Developing StatesCaribbean Small Island Developing StatesVulnerable municipalitiesHeat-related death ratesDisparities in NO2-related health burden prevalent across race-ethnicity and income groups in the United States
Chu L, Ma Y, Zang E, Huang L, Chen K. Disparities in NO2-related health burden prevalent across race-ethnicity and income groups in the United States. One Earth 2025, 101387. DOI: 10.1016/j.oneear.2025.101387.Peer-Reviewed Original ResearchHigh-income countiesRace-EthnicityNon-Hispanic black populationHealth burdenRacial-ethnic disparitiesRace-ethnic groupsIncome groupsLow-income countiesQuasi-Poisson regressionRacial-ethnic minoritiesMortality disparitiesUnited StatesHealthcare strategiesMortality burdenDescriptive statisticsRelative riskDisparitiesBlack populationNO2 exposureBurdenMortality rateCountyIncomeTargeted policiesMortality
2024
Impact of population aging on future temperature-related mortality at different global warming levels
Chen K, de Schrijver E, Sivaraj S, Sera F, Scovronick N, Jiang L, Roye D, Lavigne E, Kyselý J, Urban A, Schneider A, Huber V, Madureira J, Mistry M, Cvijanovic I, Gasparrini A, Vicedo-Cabrera A. Impact of population aging on future temperature-related mortality at different global warming levels. Nature Communications 2024, 15: 1796. PMID: 38413648, PMCID: PMC10899213, DOI: 10.1038/s41467-024-45901-z.Peer-Reviewed Original Research
2023
Racial/ethnic disparities in PM2.5-attributable cardiovascular mortality burden in the United States
Ma Y, Zang E, Opara I, Lu Y, Krumholz H, Chen K. Racial/ethnic disparities in PM2.5-attributable cardiovascular mortality burden in the United States. Nature Human Behaviour 2023, 7: 2074-2083. PMID: 37653149, PMCID: PMC10901568, DOI: 10.1038/s41562-023-01694-7.Peer-Reviewed Original ResearchConceptsNon-Hispanic White peopleCVD deathMortality burdenNon-Hispanic black peopleCardiovascular disease mortality ratesDisease mortality ratesNon-Hispanic blacksRace/ethnicityMortality rateLong-term exposureWhite peopleEthnic disparitiesHealth benefitsHispanic peopleSignificant differencesBurdenDeathUS countiesEthnic groupsAbsolute disparityAssociationExposureEthnic minoritiesDisparitiesAmbient fine particulate matter (PM2.5) concentrationsThe mortality burden of extreme heat in Connecticut: A time series analysis
Goddard E, Lin C, Ma Y, Chen K. The mortality burden of extreme heat in Connecticut: A time series analysis. PLOS Climate 2023, 2: e0000164. DOI: 10.1371/journal.pclm.0000164.Peer-Reviewed Original ResearchMortality burdenGlobal Burden of Disease 2019 studyClimate changeHealth impact estimatesStatistically significant positive associationTemperature percentileQuasi-Poisson regressionSignificant positive associationAll-Cause MortalityNegative health effectsTime series analysisLong-term trendsGlobal burdenHeat-related mortalityRelative riskEpidemiological evidenceGeneralized linear modelClimate change planningSeasonal deathsHealth impactsPublic healthPositive associationRegional policy decisionsWarm seasonHealth
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