Featured Publications
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 ResearchMeSH KeywordsAir PollutantsAir PollutionBayes TheoremFemaleHumansInfant, NewbornMaternal ExposureParticulate MatterPregnancyPremature BirthConceptsHierarchical Bayesian frameworkBayesian frameworkStatistical modelVariable selectionImproved estimationCritical windowPreterm birthRisk parametersVery preterm birthAdverse birth outcomesControl analysisExposure-disease relationshipsDifferent reproductive outcomesBirth outcomesPregnant womenReproductive outcomesCase/control analysisSpatial-Temporal Modeling of the Association Between Air Pollution Exposure and Preterm Birth: Identifying Critical Windows of Exposure
Warren J, Fuentes M, Herring A, Langlois P. Spatial-Temporal Modeling of the Association Between Air Pollution Exposure and Preterm Birth: Identifying Critical Windows of Exposure. Biometrics 2012, 68: 1157-1167. PMID: 22568640, PMCID: PMC3422613, DOI: 10.1111/j.1541-0420.2012.01774.x.Peer-Reviewed Original ResearchAssessment of critical exposure and outcome windows in time-to-event analysis with application to air pollution and preterm birth study
Chang HH, Warren JL, Darrow LA, Reich BJ, Waller LA. Assessment of critical exposure and outcome windows in time-to-event analysis with application to air pollution and preterm birth study. Biostatistics 2015, 16: 509-521. PMID: 25572998, PMCID: PMC5963471, DOI: 10.1093/biostatistics/kxu060.Peer-Reviewed Original ResearchConceptsPreterm birthAir pollution exposureGestational air pollution exposureRisk of PTBPollution exposurePreterm Birth StudyCourse of pregnancyTime-varying exposureOngoing pregnancyBirth StudyGestational exposureReproductive epidemiologyWeek 30PregnancyWeekly exposureBirth recordsVulnerable periodPopulation studiesPositive associationCritical periodExposureInconsistent findingsAssociationExposure lengthFine particulate matter
2024
Preterm and Early-Term Delivery After Heat Waves in 50 US Metropolitan Areas
Darrow L, Huang M, Warren J, Strickland M, Holmes H, Newman A, Chang H. Preterm and Early-Term Delivery After Heat Waves in 50 US Metropolitan Areas. JAMA Network Open 2024, 7: e2412055. PMID: 38787560, PMCID: PMC11127119, DOI: 10.1001/jamanetworkopen.2024.12055.Peer-Reviewed Original ResearchConceptsEarly-term birthPreterm birthCohort studyMetropolitan statistical areasAssociated with pregnancy outcomesEarly-term deliveryRate ratiosRates of pretermYears of ageNational Center for Health StatisticsGestational weeksCenter for Health StatisticsInduced deliveryPregnancy outcomesSingleton birthsPretermSocioeconomically disadvantaged subgroupsUS birthsEligible birthsPerinatal healthEthnic minority groupsBirth recordsConsecutive daysBirthHeat waves
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 survivalSeason of Conception and Risk of Cerebral Palsy
Zhuo H, Ritz B, Warren J, Liew Z. Season of Conception and Risk of Cerebral Palsy. JAMA Network Open 2023, 6: e2335164. PMID: 37738049, PMCID: PMC10517373, DOI: 10.1001/jamanetworkopen.2023.35164.Peer-Reviewed Original ResearchMeSH KeywordsAdultCerebral PalsyChildCohort StudiesFemaleHumansInfant, NewbornMaleMothersPremature BirthSeasonsConceptsCerebral palsySeason of conceptionCalifornia birth recordsCohort studyPreterm birthRelative riskBirth recordsRisk of CPStatewide cohort studyEtiological risk factorsHigher Social Vulnerability IndexLength of gestationDiagnostic recordsNeighborhood-level factorsSummer conceptionsRisk factorsStratified analysisLive birthsMAIN OUTCOMEHigh riskCP riskPoisson regressionCP statusDevelopmental servicesNeuromotor disabilitiesConfounding by Conception Seasonality in Studies of Temperature and Preterm Birth: A Simulation Study
Huang M, Strickland M, Richards M, Warren J, Chang H, Darrow L. Confounding by Conception Seasonality in Studies of Temperature and Preterm Birth: A Simulation Study. Epidemiology 2023, 34: 439-449. PMID: 36719763, PMCID: PMC10993929, DOI: 10.1097/ede.0000000000001588.Peer-Reviewed Original Research