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
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
2011
Birthweight and mortality in adulthood: a systematic review and meta-analysis
Risnes KR, Vatten LJ, Baker JL, Jameson K, Sovio U, Kajantie E, Osler M, Morley R, Jokela M, Painter RC, Sundh V, Jacobsen GW, Eriksson JG, Sørensen TI, Bracken MB. Birthweight and mortality in adulthood: a systematic review and meta-analysis. International Journal Of Epidemiology 2011, 40: 647-661. PMID: 21324938, DOI: 10.1093/ije/dyq267.Peer-Reviewed Original ResearchConceptsHazard ratioCardiovascular diseaseBirth sizeCardiovascular mortalityHigher birthweightInverse associationObservational studyLong-term mortalityGeneric inverse varianceRisk of obesityStrong inverse associationSmall birth sizeLarge birth sizeLong-term healthCause mortalityCancer mortalityCancer deathEpidemiology guidelinesResidual confoundingLower riskBirthweightMeta-AnalysisSystematic reviewMortalityInverse variance
2001
Maternal Caffeine Intake and Intrauterine Growth Retardation
Grosso L, Rosenberg K, Belanger K, Saftlas A, Leaderer B, Bracken M. Maternal Caffeine Intake and Intrauterine Growth Retardation. Epidemiology 2001, 12: 447-455. PMID: 11428387, DOI: 10.1097/00001648-200107000-00015.Peer-Reviewed Original ResearchConceptsIntrauterine growth retardationMonth 7Fetal growthMonths 1Caffeine consumptionGrowth retardationMaternal caffeine consumptionMaternal caffeine intakeThird trimesterCigarette smokingLiveborn infantsEffect modificationCaffeine intakeSoda drinkingPregnancyAdverse effectsLittle evidenceCaffeine associationCaffeineRetardationTrimesterSmokingInfantsIntakeWomen
1999
Environmental Tobacco Smoke Exposure and Small-for-Gestational-Age Birth
Sadler L, Belanger K, Saftlas A, Leaderer B, Hellenbrand K, McSharry J, Bracken M. Environmental Tobacco Smoke Exposure and Small-for-Gestational-Age Birth. American Journal Of Epidemiology 1999, 150: 695-705. PMID: 10512423, DOI: 10.1093/oxfordjournals.aje.a010072.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge DistributionBirth WeightCohort StudiesConnecticutFemaleFetal Growth RetardationHumansInfant, NewbornInfant, Small for Gestational AgeInterviews as TopicLinear ModelsMaternal ExposureMultivariate AnalysisPregnancyPregnancy Trimester, ThirdProspective StudiesRetrospective StudiesRisk FactorsTobacco Smoke PollutionConceptsEnvironmental tobacco smoke exposureTobacco smoke exposureGestational-age birthsEnvironmental tobacco smokeSmoke exposureSGA birthThird trimesterTobacco smokeBirth weight differenceIntensity of exposureCohort studyMedian durationPostpartum interviewsUnexposed mothersUpper middle class groupBirth weightEffects of exposureFetal growthMultivariate logisticOdds ratioStudy populationLow levelsWomenBirthTrimester
1995
EXPOSURE TO ELECTROMAGNETIC FIELDS DURING PREGNANCY WITH EMPHASIS ON ELECTRICALLY HEATED BEDS
Bracken M, Belanger K, Hellenbrand K, Dlugosz L, Holford T, McSharry J, Addesso K, Leaderer B. EXPOSURE TO ELECTROMAGNETIC FIELDS DURING PREGNANCY WITH EMPHASIS ON ELECTRICALLY HEATED BEDS. Epidemiology 1995, 6: 263-270. PMID: 7619934, DOI: 10.1097/00001648-199505000-00013.Peer-Reviewed Original ResearchConceptsFetal growth retardationGrowth retardationBed useIntrauterine growth retardationVideo display terminal useDose-response relationPersonal monitorsEMF exposureTime-weighted analysisMonitoring of exposureThird trimesterProspective studyFetal growthWire codesHome measurementsReproductive outcomesHuman studiesPregnancyStudy designVideo display terminalsExposure measuresHours of useMeaningful increaseRiskExposure
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
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 responseNewbornsIntakeAgeRiskPregnancyPatientsHospital
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 ratesRiskProportional weight gain and complications of pregnancy, labor, and delivery in healthy women of normal prepregnant stature
Shepard M, Hellenbrand K, Bracken M. Proportional weight gain and complications of pregnancy, labor, and delivery in healthy women of normal prepregnant stature. American Journal Of Obstetrics And Gynecology 1986, 155: 947-954. PMID: 3619994, DOI: 10.1016/0002-9378(86)90323-6.Peer-Reviewed Original ResearchConceptsComplications of pregnancyProlonged second stageProportional weight gainWeight gainMultigravid womenHealthy womenYale-New Haven HospitalEarly prenatal visitPreexisting chronic diseaseAdverse neonatal outcomesMajor congenital malformationsSignificant risk factorsDays of deliveryHealth maintenance organizationGestational hypertensionPrepregnant weightNeonatal outcomesCesarean sectionFourfold riskPrenatal visitPrimigravid womenHospital clinicQuetelet indexRisk factorsChronic diseases
1985
Ultrasound assessment of the postmature pregnancy.
Moya F, Grannum P, Pinto K, Bracken M, Kadar N, Hobbins J. Ultrasound assessment of the postmature pregnancy. Obstetrics And Gynecology 1985, 65: 319-22. PMID: 3883259.Peer-Reviewed Original ResearchConceptsPostterm pregnancyGrade 2Grade 3 placentaWeeks of gestationNeonatal ponderal indexPlacental gradingPostmature pregnancyPonderal indexUltrasound assessmentUltrasound findingsGrade 0PregnancyImmature placentaPostmaturityUse of ultrasoundPlacentaSimilar frequencyOligohydramniosGestationFetusesIncidenceWeeks