2024
Exposure range matters: considering non-linear 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 non-linear associations in the meta-analysis of environmental pollutant exposure using examples of per- and polyfluoroalkyl substances and birth outcomes. American Journal Of Epidemiology 2024, kwae309. 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 choiceMediating 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
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 Research
2018
Prenatal Exposure to Perfluoroalkyl Substances and Birth Outcomes; An Updated Analysis from the Danish National Birth Cohort
Meng Q, Inoue K, Ritz B, Olsen J, Liew Z. Prenatal Exposure to Perfluoroalkyl Substances and Birth Outcomes; An Updated Analysis from the Danish National Birth Cohort. International Journal Of Environmental Research And Public Health 2018, 15: 1832. PMID: 30149566, PMCID: PMC6164159, DOI: 10.3390/ijerph15091832.Peer-Reviewed Original ResearchConceptsDanish National Birth CohortLow birth weightNational Birth CohortBirth weightPreterm birthBirth outcomesPFASs exposureBirth cohortPrenatal PFASs exposureMaternal plasma concentrationsAdverse birth outcomesPerfluorononanoic acidPerfluorodecanoic acidWidespread industrial pollutantsPerfluoroalkyl substancesPerfluorooctanoate exposureGestational ageHighest quartileInfant pairsEarly pregnancyFetal growthPrenatal exposurePerfluoroheptane sulfonatePlasma concentrationsElevated risk
2017
Maternal socioeconomic status and infant mortality with low birth weight as a mediator: an inter-country comparison between Scotland and Denmark using administrative data
Yu Y, Verfuerden M, Hardelid P, Zylbersztejn A, Liew Z, Olsen J, Gilbert R, Li J, Fu B. Maternal socioeconomic status and infant mortality with low birth weight as a mediator: an inter-country comparison between Scotland and Denmark using administrative data. International Journal For Population Data Science 2017, 1: 368. PMCID: PMC9351277, DOI: 10.23889/ijpds.v1i1.368.Peer-Reviewed Original ResearchLow birth weightBirth weightHighest SES quintileSocioeconomic statusInfant mortalitySES quintilePublic health preventive strategiesCausal mediation analysisOverall hazard ratioPrenatal risk factorsAdministrative hospital dataCare of infantsCause infant mortalityMaternal socioeconomic statusMonths of ageHigh SES groupEffect of SESArea-based deprivationHazard ratioDeath RegisterSurvival outcomesBirth characteristicsMaternal ageLowest quintileRisk factors