2017
Associations of Maternal Vitamin B12 Concentration in Pregnancy With the Risks of Preterm Birth and Low Birth Weight: A Systematic Review and Meta-Analysis of Individual Participant Data
Rogne T, Tielemans MJ, Chong MF, Yajnik CS, Krishnaveni GV, Poston L, Jaddoe VW, Steegers EA, Joshi S, Chong YS, Godfrey KM, Yap F, Yahyaoui R, Thomas T, Hay G, Hogeveen M, Demir A, Saravanan P, Skovlund E, Martinussen MP, Jacobsen GW, Franco OH, Bracken MB, Risnes KR. Associations of Maternal Vitamin B12 Concentration in Pregnancy With the Risks of Preterm Birth and Low Birth Weight: A Systematic Review and Meta-Analysis of Individual Participant Data. American Journal Of Epidemiology 2017, 185: 212-223. PMID: 28108470, PMCID: PMC5390862, DOI: 10.1093/aje/kww212.Peer-Reviewed Original ResearchConceptsLow birth weightPreterm birthBirth weightB12 deficiencyIndividual participant dataB12 concentrationsHigh riskSystematic reviewParticipant dataMaternal B12 levelsLinear associationVitamin B12 supplementationVitamin B12 deficiencyOffspring birth weightVitamin B12 concentrationsLength of gestationB12 levelsB12 supplementationMaternal serumMaternal levelsEligible studiesCurrent evidencePregnancyMeta-AnalysisBirth
2016
Premature Adult Death in Individuals Born Preterm: A Sibling Comparison in a Prospective Nationwide Follow-Up Study
Risnes KR, Pape K, Bjørngaard JH, Moster D, Bracken MB, Romundstad PR. Premature Adult Death in Individuals Born Preterm: A Sibling Comparison in a Prospective Nationwide Follow-Up Study. PLOS ONE 2016, 11: e0165051. PMID: 27820819, PMCID: PMC5098830, DOI: 10.1371/journal.pone.0165051.Peer-Reviewed Original ResearchConceptsYears of ageExternal causesPremature adult deathsMajority of deathsCause of deathCorresponding risk estimatesLong-term healthPremature adult mortalityCause mortalityNationwide PopulationPreterm birthRegistry linkageNationwide followWeeks' gestationGestational ageWeek 34Week 37Cardiovascular diseaseStudy populationEarly adult mortalityAdult deathsMortalityNorwegian menRisk estimatesDeathParticulate air pollution, fetal growth and gestational length: The influence of residential mobility in pregnancy
Pereira G, Bracken MB, Bell ML. Particulate air pollution, fetal growth and gestational length: The influence of residential mobility in pregnancy. Environmental Research 2016, 147: 269-274. PMID: 26918840, PMCID: PMC4821760, DOI: 10.1016/j.envres.2016.02.001.Peer-Reviewed Original ResearchConceptsLow birth weightTerm low birth weightPreterm birthWhole pregnancySecond trimesterAddress historiesAdverse perinatal outcomesFetal growth restrictionEffects of PM10Particulate air pollutionPerinatal outcomesGestational agePregnancy cohortGestational lengthPregnant womenRetrospective studyBirth weightFetal growthGrowth restrictionPM10 exposureMaternal addressInsufficient evidencePregnancyLogistic regressionBirthFine Particulates, Preterm Birth, and Membrane Rupture in Rochester, NY
Pereira G, Evans KA, Rich DQ, Bracken MB, Bell ML. Fine Particulates, Preterm Birth, and Membrane Rupture in Rochester, NY. Epidemiology 2016, 27: 66-73. PMID: 26247489, DOI: 10.1097/ede.0000000000000366.Peer-Reviewed Original ResearchConceptsPreterm birthPrelabor ruptureWhole pregnancyOdds ratioSame womenElevated PM2.5 exposureConditional logistic regressionFine particulate exposureIndividual-level confoundersThird trimesterFirst trimesterSecond trimesterPregnancyPM2.5 exposureTrimesterLogistic regressionParticulate exposureBirthLongitudinal studyLow exposureWomen comparisonsMembrane ruptureRuptureWomenExposure
2015
Folic acid supplementation in early pregnancy and the risk of preeclampsia, small for gestational age offspring and preterm delivery
Martinussen MP, Bracken MB, Triche EW, Jacobsen GW, Risnes KR. Folic acid supplementation in early pregnancy and the risk of preeclampsia, small for gestational age offspring and preterm delivery. European Journal Of Obstetrics & Gynecology And Reproductive Biology 2015, 195: 94-99. PMID: 26500184, PMCID: PMC4684439, DOI: 10.1016/j.ejogrb.2015.09.022.Peer-Reviewed Original ResearchMeSH KeywordsAdultCohort StudiesFemaleFolic AcidHumansInfant, Low Birth WeightInfant, NewbornInfant, Small for Gestational AgeObesityOdds RatioPre-EclampsiaPregnancyPregnancy ComplicationsPregnancy Trimester, FirstPremature BirthProspective StudiesProtective FactorsRisk FactorsVitamin B ComplexYoung AdultConceptsFolic acid supplementationLow birth weightFolic acid intakePreterm birthAcid supplementationFirst trimesterLean mothersBirth weightAcid intakeEarly pregnancyOdds ratioGestational age offspringProspective cohort studyFolic acid supplementsFolic acid usePregnancy outcome dataRisk of preeclampsiaPossible protective effectMonths of pregnancyObese mothersPreterm deliveryCohort studyObstetric recordsAge offspringFolate intake
2014
Re‐analysis of the PREGNANT trial confirms that vaginal progesterone reduces the rate of preterm birth in women with a sonographic short cervix
McKay LA, Holford TR, Bracken MB. Re‐analysis of the PREGNANT trial confirms that vaginal progesterone reduces the rate of preterm birth in women with a sonographic short cervix. Ultrasound In Obstetrics And Gynecology 2014, 43: 596-597. PMID: 24585456, DOI: 10.1002/uog.13331.Peer-Reviewed Original Research
1990
EFFECT OF MATERNAL WORK ACTIVITY ON PRETERM BIRTH AND LOW BIRTH WEIGHT
TEITELMAN A, WELCH L, HELLENBRAND K, BRACKEN M. EFFECT OF MATERNAL WORK ACTIVITY ON PRETERM BIRTH AND LOW BIRTH WEIGHT. American Journal Of Epidemiology 1990, 131: 104-113. PMID: 2293743, DOI: 10.1093/oxfordjournals.aje.a115463.Peer-Reviewed Original ResearchConceptsPreterm birthLow birth weight deliveriesLow birth weight rateMaternal work activityLow birth weightLogistic regression modelsPreterm deliveryWeight deliveriesGestational ageBirth weightStanding GroupProlonged standingSignificant associationCaffeine useMarital statusBirthWeight rateMarijuana useWomenAssociationRegression modelsActive groupActive jobsGroupNew Haven
1987
DELAYED CHILDBEARING: NO EVIDENCE FOR INCREASED RISK OF LOW BIRTH WEIGHT AND PRETERM DELIVERY1
BARKAN S, BRACKEN M. DELAYED CHILDBEARING: NO EVIDENCE FOR INCREASED RISK OF LOW BIRTH WEIGHT AND PRETERM DELIVERY1. American Journal Of Epidemiology 1987, 125: 101-109. PMID: 3788938, DOI: 10.1093/oxfordjournals.aje.a114491.Peer-Reviewed Original ResearchConceptsLow birth weightBirth weightPreterm deliveryPrimiparous womenYale-New Haven HospitalAge 30 yearsMore frequent historyMaternal primiparityPreterm birthSingleton deliveriesGestational ageMaternal ageSpontaneous abortionFrequent historyOlder womenReproductive outcomesAge 30Confounding variablesYoung womenWomenPresent studyAgeRiskDeliveryPrior studies