Perinatal MortalityInfant MortalityFetal DeathStillbirthFetal MortalityInfant, NewbornDelivery, ObstetricPregnancyPerinatal CareNatural ChildbirthMaternal MortalityHospitals, MaternityNeonatologyPregnancy OutcomeMortalityPrenatal CareBirth WeightObstetricsMaternal AgeGestational AgeTwinsParityCesarean SectionPregnancy ComplicationsPregnancy, MultipleObstetric Labor ComplicationsCongenital AbnormalitiesHome ChildbirthHospital MortalityCause of DeathInfant, Low Birth WeightPremature BirthObstetric Surgical ProceduresPregnancy, TwinRetrospective StudiesFetal MonitoringMidwiferyMaternal Health ServicesCohort StudiesIllegitimacyRisk FactorsFetal Growth RetardationProspective StudiesBirthing CentersPregnancy in DiabeticsLabor, InducedTime FactorsAsphyxia NeonatorumRegistriesChild MortalityInfant, Newborn, DiseasesApgar ScoreEnglandDeveloping CountriesTreatment OutcomeIncidenceUnited StatesObstetric Labor, PrematureDeath CertificatesSurvival RateInfant, PostmatureEclampsiaRisk AssessmentObstetrics and Gynecology Department, HospitalFollow-Up StudiesFetal DistressNetherlands AntillesSingle Umbilical ArterySurvival AnalysisPerinatologyRural HealthInfant CarePregnancy, ProlongedInfant, PrematureMaternal WelfareProportional Hazards ModelsBirth OrderRiskAge FactorsMultiple Birth OffspringHospitals, SpecialRegression AnalysisSocial ClassPregnancy Complications, InfectiousEthnic GroupsTerm BirthAge DistributionPre-EclampsiaBirth InjuriesDelivery RoomsIntensive Care, NeonatalRural PopulationHospitals, RuralAfrica, NorthernOdds RatioPrognosisPeripartum PeriodPolyhydramniosPopulation SurveillanceMultivariate Analysis