2024
Mediating Factors in the Association of Maternal Educational Level With Pregnancy Outcomes
Rogne T, Gill D, Liew Z, Shi X, Stensrud V, Nilsen T, Burgess S. Mediating Factors in the Association of Maternal Educational Level With Pregnancy Outcomes. JAMA Network Open 2024, 7: e2351166. PMID: 38206626, PMCID: PMC10784860, DOI: 10.1001/jamanetworkopen.2023.51166.Peer-Reviewed Original ResearchMeSH KeywordsBirth WeightCholesterolCohort StudiesDiabetes Mellitus, Type 2Educational StatusFemaleGenome-Wide Association StudyHumansHyperemesis GravidarumInfant, NewbornLipoproteins, HDLMediation AnalysisMendelian Randomization AnalysisPre-EclampsiaPregnancyPregnancy OutcomePregnancy, EctopicPremature BirthConceptsCardiometabolic risk factorsBody mass indexOffspring birth weightEducational attainmentMendelian randomizationHigh-density lipoprotein cholesterol levelsSystolic blood pressureInverse variance-weighted methodModifiable cardiometabolic risk factorsPregnancy outcomesCohort studyLipoprotein cholesterol levelsMR-Egger regressionMass indexUnivariable MR analysisEffects of educational attainmentAssociated with increased risk of adverse pregnancy outcomesPublic health interventionsMaternal education levelLower educational attainmentRisk factorsRisk of adverse pregnancy outcomesGenome-wide association studiesAssociated with increased riskBirth weight
2023
Maternal medically diagnosed infection and antibiotic prescription during pregnancy and risk of childhood cancer: A population‐based cohort study in Taiwan, 2004 to 2015
Sirirungreung A, Lee P, Hu Y, Liew Z, Ritz B, Heck J. Maternal medically diagnosed infection and antibiotic prescription during pregnancy and risk of childhood cancer: A population‐based cohort study in Taiwan, 2004 to 2015. International Journal Of Cancer 2023, 154: 626-635. PMID: 37792464, PMCID: PMC10942658, DOI: 10.1002/ijc.34744.Peer-Reviewed Original ResearchConceptsPopulation-based cohort studyMaternal infectionAcute lymphoblastic leukemiaAntibiotic prescriptionsChildhood cancerCohort studyChildhood acute lymphoblastic leukemiaChild Health DatabaseRisk of hepatoblastomaProportional hazards modelMother-child pairsMedian followTaiwan MaternalCancer RegistryLymphoblastic leukemiaAntibiotic useNational HealthAntibiotic exposureElevated riskHigh riskHazards modelPregnancyChildhood leukemiaHealth databasesChildhood hepatoblastomaSeason 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 ResearchConceptsCerebral 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 disabilitiesResidential proximity to unconventional oil and gas development and birth defects in Ohio
Gaughan C, Sorrentino K, Liew Z, Johnson N, Clark C, Soriano M, Plano J, Plata D, Saiers J, Deziel N. Residential proximity to unconventional oil and gas development and birth defects in Ohio. Environmental Research 2023, 229: 115937. PMID: 37076028, PMCID: PMC10198955, DOI: 10.1016/j.envres.2023.115937.Peer-Reviewed Original ResearchConceptsNeural tube defectsCertain birth defectsBirth defectsOdds ratioRegistry-based cohort studyTube defectsConfidence intervalsResidential proximityState birth recordsBirth defect typeState surveillance systemsMaternal residential proximityLimb reduction defectsCohort studyUnexposed mothersStructural birth defectsLive birthsInfant sexBirth recordsSpina bifidaReduction defectsFemale offspringDevelopmental toxicantsExposure metrics
2020
Associations between preterm birth and low birth weight in parents and autism spectrum disorder (ASD) risk in their offspring: A population-based multigenerational cohort study in Denmark
Xiao J, Gao Y, Yu Y, Toft G, Zhang Y, Luo J, Xia Y, Chawarska K, Olsen J, Li J, Liew Z. Associations between preterm birth and low birth weight in parents and autism spectrum disorder (ASD) risk in their offspring: A population-based multigenerational cohort study in Denmark. ISEE Conference Abstracts 2020, 2020 DOI: 10.1289/isee.2020.virtual.p-0708.Peer-Reviewed Original ResearchMaternal Diabetes During Pregnancy and Early Onset of Cardiovascular Disease in Offspring: Population Based Cohort Study With 40 Years of Follow Up
Yu Y, Arah O, Liew Z, Cnattingius S, Olsen J, Sørensen H, Qin G, Li J. Maternal Diabetes During Pregnancy and Early Onset of Cardiovascular Disease in Offspring: Population Based Cohort Study With 40 Years of Follow Up. Obstetrical & Gynecological Survey 2020, 75: 277-279. DOI: 10.1097/01.ogx.0000666220.44880.94.Peer-Reviewed Original Research
2018
How to investigate and adjust for selection bias in cohort studies
Nohr EA, Liew Z. How to investigate and adjust for selection bias in cohort studies. Acta Obstetricia Et Gynecologica Scandinavica 2018, 97: 407-416. PMID: 29415329, DOI: 10.1111/aogs.13319.Peer-Reviewed Original ResearchConceptsCohort studyDanish National Birth CohortSelection biasLong-term followNational Birth CohortLongitudinal cohort studyCase-control studySubsequent follow upsExposure-outcome associationsTraditional epidemiological approachesPreventable causeFollow-upInverse probability weightingBirth cohortInitial participation rateStudy designEpidemiological approachLimited dataCohortDiseaseBias analysisProbability weightingParticipation ratesParticipantsLess disease
2016
Prenatal maternal bereavement and mortality in the first decades of life: a nationwide cohort study from Denmark and Sweden
Yu Y, Cnattingius S, Olsen J, Parner E, Vestergaard M, Liew Z, Zhao N, Li J. Prenatal maternal bereavement and mortality in the first decades of life: a nationwide cohort study from Denmark and Sweden. Psychological Medicine 2016, 47: 389-400. PMID: 27762181, DOI: 10.1017/s003329171600266x.Peer-Reviewed Original ResearchConceptsPrenatal maternal bereavementMaternal bereavementMortality riskCohort studyIncreased long-term mortality riskPopulation-based cohort studyLong-term mortality riskNationwide cohort studyLong-term mortalityCause mortality riskExcess mortality riskChildren of mothersFetal programming hypothesisYears of ageYears of lifeEndocrine/Stressful life eventsFetal deathSingleton birthsMedical conditionsProgramming hypothesisHigh riskUnnatural causesCongenital malformationsPrenatal stressMaternal Perfluoroalkyl Substances Levels in Pregnancy and Child IQ: a Danish National Birth Cohort Study.
Liew* Z, Ritz B, Bech B, Nohr E, Bossi R, Henriksen T, Bonefeld-Jørgensen E, Olsen J. Maternal Perfluoroalkyl Substances Levels in Pregnancy and Child IQ: a Danish National Birth Cohort Study. ISEE Conference Abstracts 2016, 2016 DOI: 10.1289/isee.2016.3303.Peer-Reviewed Original Research