2023
Predicting primary cesarean delivery in pregnancies complicated by gestational diabetes mellitus
Ramos S, Lewkowitz A, Lord M, Has P, Danilack V, Savitz D, Werner E. Predicting primary cesarean delivery in pregnancies complicated by gestational diabetes mellitus. American Journal Of Obstetrics And Gynecology 2023, 229: 549.e1-549.e16. PMID: 37290567, PMCID: PMC10700654, DOI: 10.1016/j.ajog.2023.06.002.Peer-Reviewed Original ResearchMeSH KeywordsDelivery, ObstetricDiabetes, GestationalFemaleGestational AgeHumansLabor, ObstetricParityPregnancyReproducibility of ResultsConceptsGestational diabetes mellitusDiabetes mellitusHosmer-Lemeshow testRisk factorsPrimary CDCD riskThird trimesterEarly pregnancy body mass indexPregnancy body mass indexLarge tertiary care centerOlder maternal ageTertiary care centerTrial of laborCohort of patientsBody mass indexImportant clinical outcomesPrimary cesarean deliveryWeeks of gestationMultiple risk factorsCharacteristic curveLogistic regression modelsSimilar discriminatory abilityMultiparous patientsStepwise backward eliminationCesarean delivery
2022
Risk factors for respiratory distress syndrome among high-risk early-term and full-term deliveries
Gould A, Ding J, Recabo O, Has P, Savitz D, Danilack V, Lewkowitz A. Risk factors for respiratory distress syndrome among high-risk early-term and full-term deliveries. The Journal Of Maternal-Fetal & Neonatal Medicine 2022, 35: 10401-10405. PMID: 36210090, PMCID: PMC9851950, DOI: 10.1080/14767058.2022.2128657.Peer-Reviewed Original ResearchConceptsRespiratory distress syndromeFetal growth restrictionEarly term infantsPresence of meconiumFull-term neonatesNovel risk factorsStrong risk factorRisk factorsHypertensive disordersMaternal demographicsCesarean deliveryDistress syndromeGestational ageIncidence of RDSSecondary analysisTertiary care obstetric hospitalRetrospective cohort studyLower gestational ageFull-term birthFull-term deliveryInfant health outcomesComorbid diabetesInfectious comorbiditiesIntrauterine inflammationSevere preeclampsiaDevelopment and Internal Validation of a Risk Prediction Model for Acute Cardiovascular Morbidity in Preeclampsia
Malhamé I, Raker C, Hardy E, Spalding H, Bouvier B, Hurlburt H, Vrees R, Daskalopoulou S, Nerenberg K, Savitz D, Mehta N, Danilack V. Development and Internal Validation of a Risk Prediction Model for Acute Cardiovascular Morbidity in Preeclampsia. Canadian Journal Of Cardiology 2022, 38: 1591-1599. PMID: 35709932, DOI: 10.1016/j.cjca.2022.05.007.Peer-Reviewed Original ResearchMeSH KeywordsAdultCardiovascular DiseasesDisease ProgressionFemaleGestational AgeHeart FailureHumansInfantPre-EclampsiaPregnancyROC CurveConceptsAdverse cardiovascular outcomesCardiovascular morbidityCardiovascular outcomesInternal validationAcute heart failurePrevious caesarean deliveryPrimary composite outcomeRisk prediction toolsEarly postpartum periodRisk prediction modelShort-term riskRisk assessment toolCaesarean deliveryCardiogenic shockSevere hypertensionComposite outcomeHeart failureGestational ageCerebrovascular disordersObstetric hospitalMaternal ageMyocardial infarctionPostpartum periodVentricular fibrillationPreeclampsia
2021
Health Outcomes Associated With Clinician-initiated Delivery for Hypertensive Disorders at 34–38 Weeks’ Gestation
Savitz D, Danilack V, Cochancela J, Hughes B, Rouse D, Gutmann R. Health Outcomes Associated With Clinician-initiated Delivery for Hypertensive Disorders at 34–38 Weeks’ Gestation. Epidemiology 2021, 33: 260-268. PMID: 34799472, PMCID: PMC8810678, DOI: 10.1097/ede.0000000000001442.Peer-Reviewed Original ResearchConceptsHypertensive disordersWeeks' gestationInfant outcomesInfant HospitalWeek 34Week 37Week 35Neonatal intensive care unit admissionIntensive care unit admissionRecords-based cohort studyAdverse infant outcomesCare unit admissionRisk of progressionInfant health outcomesHealth Outcomes AssociatedGestational hypertensionNonsevere preeclampsiaUnit admissionHypertensive pregnanciesMaternal outcomesCohort studyGestational weeksAdverse outcomesLate pregnancySevere diseasePrediction Model Assessing Risk of Delivery after Diagnosis of Abnormal Umbilical Artery Doppler
Yu H, Has P, Danilack V, Werner E, Rouse D. Prediction Model Assessing Risk of Delivery after Diagnosis of Abnormal Umbilical Artery Doppler. American Journal Of Perinatology 2021, 40: 1253-1258. PMID: 34450676, DOI: 10.1055/s-0041-1735222.Peer-Reviewed Original ResearchConceptsFetal growth restrictionRisk of deliveryAntenatal corticosteroidsAbnormal UADAbnormal umbilical artery DopplerInitial eligibilityBackward stepwise logistic regressionDoppler velocimetry abnormalitiesInternal validationPre-pregnancy BMIReferral center studyUmbilical artery DopplerPrediction of deliveryRisk stratification methodsStepwise logistic regressionAntepartum managementArtery DopplerNeonatal morbiditySingleton pregnanciesCenter studyMedian GAGrowth restrictionMultivariable modelPatientsClinical aidThe independent and combined influences of small for gestational age and socioeconomic status on newborn metabolite levels
McCarthy M, Oltman S, Rogers E, Ryckman K, Jelliffe-Pawlowski L, Danilack V. The independent and combined influences of small for gestational age and socioeconomic status on newborn metabolite levels. The Journal Of Maternal-Fetal & Neonatal Medicine 2021, 35: 6192-6198. PMID: 33882790, DOI: 10.1080/14767058.2021.1909562.Peer-Reviewed Original ResearchConceptsSocioeconomic statusGestational ageMetabolite levelsHospital discharge dataDose-response relationshipEffect of SESNewborn interventionsSGA infantsSGA statusRetrospective cohortSmall birthweightFree carnitineBetter outcomesSGAMajority of metabolitesNutritional Assistance ProgramCalifornia infantsInfant's levelInfantsSelect metabolitesMedical insuranceAge exhibitIndependent effectsBirthweightEducation level
2020
Term Labor Induction and Cesarean Delivery Risk among Obese Women with and without Comorbidities
Glazer K, Danilack V, Field A, Werner E, Savitz D. Term Labor Induction and Cesarean Delivery Risk among Obese Women with and without Comorbidities. American Journal Of Perinatology 2020, 39: 154-164. PMID: 32722823, DOI: 10.1055/s-0040-1714422.Peer-Reviewed Original ResearchConceptsCesarean delivery riskLow-risk nulliparous womenPrior vaginal deliveryCesarean riskCesarean deliveryLabor inductionElective inductionNulliparous womenVaginal deliveryWeeks' gestationMaternal ageTerm inductionEarly term inductionTerm labor inductionPrior cesarean deliveryAdjusted risk ratioBody mass indexElective labor inductionWeeks of gestationDelivery riskRisk reductionARRIVE trialExpectant managementHypertensive disordersObstetric populationPrediction Model for Vaginal Birth After Induction of Labor in Women With Hypertensive Disorders of Pregnancy.
Beninati M, Ramos S, Danilack V, Has P, Savitz D, Werner E. Prediction Model for Vaginal Birth After Induction of Labor in Women With Hypertensive Disorders of Pregnancy. Obstetrics And Gynecology 2020, 136: 402-410. PMID: 32649502, DOI: 10.1097/aog.0000000000003938.Peer-Reviewed Original ResearchConceptsInduction of laborCesarean deliveryHypertensive disordersVaginal deliveryHosmer-Lemeshow testLabor inductionIntrapartum magnesium sulfateStepwise backward logistic regressionVaginal delivery successPrior cesarean deliveryBody mass indexPrelabor cesarean deliveryWeeks of gestationBackward logistic regressionFuture external validationSimilar discriminatory abilitySeizure prophylaxisCervical ripeningRetrospective cohortSingleton pregnanciesSpontaneous laborGestational ageMass indexStudy cohortVaginal birthPrecision of gestational age for prenatal medication use studies
Danilack V, Ananth C. Precision of gestational age for prenatal medication use studies. Paediatric And Perinatal Epidemiology 2020, 34: 607-608. PMID: 32163183, DOI: 10.1111/ppe.12670.Commentaries, Editorials and Letters
2015
The effect of labour induction on the risk of caesarean delivery: using propensity scores to control confounding by indication
Danilack V, Dore D, Triche E, Muri J, Phipps M, Savitz D. The effect of labour induction on the risk of caesarean delivery: using propensity scores to control confounding by indication. BJOG An International Journal Of Obstetrics & Gynaecology 2015, 123: 1521-1529. PMID: 26411752, DOI: 10.1111/1471-0528.13682.Peer-Reviewed Original ResearchConceptsWeeks of gestationCaesarean deliveryLabor inductionRisk ratioPropensity scoreElevated riskNational Perinatal Information CenterPrimary caesarean deliveryRisk of caesareanAdministrative hospital discharge dataHospital discharge dataMedical record informationCross-sectional analysisExpectant managementPreterm deliveryLiveborn deliveryPropensity score methodsGestationMember hospitalsPS adjustmentWeeksCovariate adjustmentSubsequent weeksTraditional covariatesRisk
2013
Changes in delivery methods at specialty care hospitals in the United States between 2006 and 2010
Danilack V, Botti J, Roach J, Savitz D, Muri J, Caldwell D. Changes in delivery methods at specialty care hospitals in the United States between 2006 and 2010. Journal Of Perinatology 2013, 33: 919-923. PMID: 23929114, DOI: 10.1038/jp.2013.90.Peer-Reviewed Original ResearchConceptsEarly term birthCesarean deliveryLabor inductionTerm birthsEarly term deliveryAdministrative hospital discharge dataHospital discharge dataTiming of deliverySpecialty care hospitalsCare hospitalGestational ageInterventional deliveryTerm deliveryMedical indicationsDelivery methodsHospitalMember hospitalsBirthDeliveryDischarge dataInductionCesarean