2025
Associations between PM2.5 exposure and birth outcomes and effect modification by extreme heat events during pregnancy in a North Carolina cohort
Krajewski A, Alman B, Vaidyanathan A, Warren J, Luben T, Rappazzo K. Associations between PM2.5 exposure and birth outcomes and effect modification by extreme heat events during pregnancy in a North Carolina cohort. Atmospheric Environment 2025, 362: 121500. DOI: 10.1016/j.atmosenv.2025.121500.Peer-Reviewed Original ResearchBirth outcomesPreterm birthPM2.5 exposureExposure to extreme heat eventsPoor health outcomesBirth registry dataEffect measure modificationAdverse birth outcomesInteraction termsNorth Carolina cohortEntire pregnancyHealth outcomesGeocoded addressesSingleton birthsMeasure modificationEffect modificationBirth recordsCensus tractsRegistry dataTLBWRisk differenceNeonatal mortalityEnvironmental exposuresExposure dataWeeks gestationPaternal and maternal exposures to per- and polyfluoroalkyl substances (PFAS) and birth outcomes: a multi-country cohort study
Guo P, Luo J, Zhang J, Bonde J, Struciński P, Ohniev V, Arah O, Deziel N, Warren J, Toft G, Liew Z. Paternal and maternal exposures to per- and polyfluoroalkyl substances (PFAS) and birth outcomes: a multi-country cohort study. Environmental Health 2025, 24: 48. PMID: 40652244, PMCID: PMC12255010, DOI: 10.1186/s12940-025-01199-y.Peer-Reviewed Original ResearchConceptsShort birth lengthAdverse birth outcomesBirth outcomesBirth lengthMulti-country cohort studyAntenatal care visitsAssociated with lower offspring birth weightParent-specific effectsPFAS exposureMaternal exposureBirth weightQuantile g-computationOffspring birth weightPrenatal PFAS exposureCare visitsResultsNo associationEffects of PFAS exposureG-computationLow birth weightCohort studyINUENDO cohortEffect sizeMedical recordsMethodsThis studyPaternal exposure
2024
Influenza Activity and Preterm Birth in the Atlanta Metropolitan Area: A Time-Series Analysis from 2010 to 2017
Zheng X, Wang T, Hao H, D’Souza R, Strickland M, Warren J, Darrow L, Chang H. Influenza Activity and Preterm Birth in the Atlanta Metropolitan Area: A Time-Series Analysis from 2010 to 2017. Epidemiology 2024, 36: 141-148. PMID: 39588975, PMCID: PMC11785485, DOI: 10.1097/ede.0000000000001819.Peer-Reviewed Original ResearchInfluenza-like illnessExposure lagTest positivityPreterm birthPregnant peopleRisk of adverse birth outcomesIncreased risk of adverse birth outcomesInfluenza activityAssociated with increased risk of preterm birthInterquartile range increaseAdverse birth outcomesTime-varying confoundersComposite measureRisk of preterm birthShort-term associationsAssociated with increased riskPublic health burdenPoisson log-linear modelSymptoms of influenza-like illnessEstimate associationsBirth outcomesEffect modificationAnnual influenza epidemicsRange increaseMaternal characteristicsExposure range matters: considering nonlinear associations in the meta-analysis of environmental pollutant exposure using examples of per- and polyfluoroalkyl substances and birth outcomes
Guo P, Warren J, Deziel N, Liew Z. Exposure range matters: considering nonlinear associations in the meta-analysis of environmental pollutant exposure using examples of per- and polyfluoroalkyl substances and birth outcomes. American Journal Of Epidemiology 2024, 194: 1043-1051. PMID: 39227151, DOI: 10.1093/aje/kwae309.Peer-Reviewed Original ResearchNon-linear associationMeta-analysisHeterogeneity of effect estimatesEffect estimatesPotential non-linear associationsExposure-outcome relationshipsRisk of preterm birthSubgroup meta-analysisBirth outcomesPollution exposureMeta-analytic approachMeta-analysesEffect sizeEnvironmental pollutant exposureResults heterogeneityExposure levelsHealth effectsPreterm birthEvidence-based policymakingPrenatal exposurePotential heterogeneityMean birth weightBirth weightMethodological challengesCut-off choice
2023
Effects of air pollution on adverse birth outcomes and pregnancy complications in the U.S. state of Kansas (2000–2015)
Hao H, Yoo S, Strickland M, Darrow L, D’Souza R, Warren J, Moss S, Wang H, Zhang H, Chang H. Effects of air pollution on adverse birth outcomes and pregnancy complications in the U.S. state of Kansas (2000–2015). Scientific Reports 2023, 13: 21476. PMID: 38052850, PMCID: PMC10697947, DOI: 10.1038/s41598-023-48329-5.Peer-Reviewed Original ResearchConceptsGestational diabetes mellitusAdverse birth outcomesLow birth weightGestational hypertensionBirth outcomesBirth weightPregnancy complicationsPreterm birthFirst trimesterRisk of GDMMaternal medical complicationsSingleton live birthsWeeks of pregnancyO3 exposureAdverse pregnancyPregnancy exposurePregnancy outcomesDiabetes mellitusMedical complicationsAdverse birthThird trimesterNeonatal mortalityResidential census tractsSocio-economic status factorsDiscrete-time survival
2019
Critical window variable selection: estimating the impact of air pollution on very preterm birth
Warren JL, Kong W, Luben TJ, Chang HH. Critical window variable selection: estimating the impact of air pollution on very preterm birth. Biostatistics 2019, 21: 790-806. PMID: 30958877, PMCID: PMC7422642, DOI: 10.1093/biostatistics/kxz006.Peer-Reviewed Original ResearchConceptsHierarchical Bayesian frameworkBayesian frameworkStatistical modelVariable selectionImproved estimationCritical windowPreterm birthRisk parametersVery preterm birthAdverse birth outcomesControl analysisExposure-disease relationshipsDifferent reproductive outcomesBirth outcomesPregnant womenReproductive outcomesCase/control analysis
2017
Investigating the Impact of Maternal Residential Mobility on Identifying Critical Windows of Susceptibility to Ambient Air Pollution During Pregnancy
Warren JL, Son JY, Pereira G, Leaderer BP, Bell ML. Investigating the Impact of Maternal Residential Mobility on Identifying Critical Windows of Susceptibility to Ambient Air Pollution During Pregnancy. American Journal Of Epidemiology 2017, 187: 992-1000. PMID: 29053768, PMCID: PMC5928458, DOI: 10.1093/aje/kwx335.Peer-Reviewed Original ResearchConceptsLow birth weightTerm low birth weightMaternal residential mobilityBirth weightCritical windowBirth cohortWeekly exposurePregnancy week 16Adverse birth outcomesWindow of susceptibilityAmbient air pollutionPregnancy windowsBirth outcomesWeek 16Mother's residencePM10 exposurePregnancyResidential addressesExposure misclassificationDisease developmentCohortAir pollutionExposureAerodynamic diameterPossible mechanism
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