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
Particulate 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 regressionBirth
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
Potential confounding still clouds the possible association of maternal caffeine intake and low birth weight
Bracken MB. Potential confounding still clouds the possible association of maternal caffeine intake and low birth weight. BMJ Evidence-Based Medicine 2014, 20: 37. PMID: 25525041, DOI: 10.1136/ebmed-2014-110116.Commentaries, Editorials and Letters
1990
Reproductive versus chronologic age as a predictor of low birth weight, preterm delivery and intrauterine growth retardation in primiparous women
Mitchell L, Bracken M. Reproductive versus chronologic age as a predictor of low birth weight, preterm delivery and intrauterine growth retardation in primiparous women. Annals Of Human Biology 1990, 17: 377-386. PMID: 2260840, DOI: 10.1080/03014469000001152.Peer-Reviewed Original ResearchConceptsLow birth weightIntrauterine growth retardationReproductive agePreterm deliveryChronologic agePrimiparous womenBirth weightYoung reproductive ageMaternal raceGrowth retardationSingleton live birthsYounger chronologic ageOlder reproductive ageImportant confounding variablesGroup of womenOlder chronologic agesSmoking statusPregnancy riskLive birthsReproductive outcomesConfounding variablesWomenAgeMenarcheal ageRiskEFFECT 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
1989
Meta-analysis of the relationship between asymptomatic bacteriuria and preterm delivery/low birth weight.
Romero R, Oyarzun E, Mazor M, Sirtori M, Hobbins J, Bracken M. Meta-analysis of the relationship between asymptomatic bacteriuria and preterm delivery/low birth weight. Obstetrics And Gynecology 1989, 73: 576-82. PMID: 2927852.Peer-Reviewed Original ResearchConceptsLow birth weightUntreated asymptomatic bacteriuriaRate of LBWAsymptomatic bacteriuriaPreterm deliveryBirth weightAntibiotic treatmentClinical trialsOccurrence of LBWPrematurity/low birth weightRisk of LBWPercentage point differenceRandomized clinical trialsNonbacteriuric patientsCohort studyEpidemiologic evidenceBacteriuriaControl trialMeta-AnalysisStudy designStrong associationTrialsRiskTwo-thirdsDelivery
1987
THE ASSOCIATION BETWEEN LOW BIRTH WEIGHT AND CAFFEINE CONSUMPTION DURING PREGNANCY
MARTIN T, BRACKEN M. THE ASSOCIATION BETWEEN LOW BIRTH WEIGHT AND CAFFEINE CONSUMPTION DURING PREGNANCY. American Journal Of Epidemiology 1987, 126: 813-821. PMID: 3661529, DOI: 10.1093/oxfordjournals.aje.a114718.Peer-Reviewed Original ResearchConceptsLow birth weightBirth weightGestational ageCaffeine intakeCaffeine consumptionYale-New Haven HospitalMaternal caffeine intakeMean birth weightWeeks gestational ageAntenatal patientsSingleton newbornsTerm newbornsProspective studyCaffeine dailyRelative riskCaffeine exposureGrowth retardationDose responseNewbornsIntakeAgeRiskPregnancyPatientsHospitalDELAYED 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
1986
EFFECT OF MARIJUANA USE IN PREGNANCY ON FETAL GROWTH
HATCH E, BRACKEN M. EFFECT OF MARIJUANA USE IN PREGNANCY ON FETAL GROWTH. American Journal Of Epidemiology 1986, 124: 986-993. PMID: 3776981, DOI: 10.1093/oxfordjournals.aje.a114488.Peer-Reviewed Original ResearchConceptsGestational age infantsLow birth weightPreterm deliveryAge infantsBirth weightSmall gestational age infantsLow birth weight infantsWhite womenYale-New Haven HospitalBirth weight infantsSingleton live birthsMarijuana useWeight infantsGestational ageProspective studyFetal growthRisk factorsLive birthsNonwhite womenInfantsRegular useWomenPregnancyElevated ratesRiskASSOCIATION OF LOW BIRTH WEIGHT WITH PASSIVE SMOKE EXPOSURE IN PREGNANCY1
MARTIN T, BRACKEN M. ASSOCIATION OF LOW BIRTH WEIGHT WITH PASSIVE SMOKE EXPOSURE IN PREGNANCY1. American Journal Of Epidemiology 1986, 124: 633-642. PMID: 3752056, DOI: 10.1093/oxfordjournals.aje.a114436.Peer-Reviewed Original ResearchConceptsLow birth weightPassive smoke exposureBirth weightPassive smokingTerm deliverySmoke exposureYale-New Haven HospitalUnexposed womenAntenatal patientsTerm newbornsPassive smokeGestational ageCigarette smokingProspective studyRelative riskSmokingGrowth retardationPregnancyAdditive effectRiskWomenExposureSmokeDeliveryNonsmokersLOW BIRTH WEIGHT IN PREGNANCIES FOLLOWING INDUCED ABORTION: NO EVIDENCE FOR AN ASSOCIATION1
BRACKEN M, HELLENBRAND K, HOLFORD T, BRYCE-BUCHANAN C. LOW BIRTH WEIGHT IN PREGNANCIES FOLLOWING INDUCED ABORTION: NO EVIDENCE FOR AN ASSOCIATION1. American Journal Of Epidemiology 1986, 123: 604-613. PMID: 3953539, DOI: 10.1093/oxfordjournals.aje.a114280.Peer-Reviewed Original ResearchConceptsLow birth weightMean birth weightFirst pregnancyBirth weightSecond pregnancyInduced abortionLow birth weight newbornsLow birth weight rateAntecedent pregnancyWeight newbornsSubsequent pregnancyAbortion complicationsVacuum aspirationPrior abortionPregnancyAbortionWeight rateSimilar ratesMonthsWomenDeliveryRiskCurettageComplicationsGestation