1996
Tree-based, Two-stage Risk Factor Analysis for Spontaneous Abortion
Zhang H, Bracken M. Tree-based, Two-stage Risk Factor Analysis for Spontaneous Abortion. American Journal Of Epidemiology 1996, 144: 989-996. PMID: 8916510, DOI: 10.1093/oxfordjournals.aje.a008869.Peer-Reviewed Original ResearchConceptsSpontaneous abortionPutative risk factorsRisk factorsPotential confoundersFirst monthYears of smokingNegative pregnancy outcomesNumber of pregnanciesRisk factor analysisNew risk factorsPotential confounding factorsPregnancy outcomesGynecologic problemsMaternal ageMore cupsMother's heightPregnancyConfounding factorsPassive exposureCocaine useLogistic regressionMantel-HaenszelAbortionConfoundersBirth control
1995
Tree-based Risk Factor Analysis of Preterm Delivery and Small-for-Gestational-Age Birth
Zhang H, Bracken M. Tree-based Risk Factor Analysis of Preterm Delivery and Small-for-Gestational-Age Birth. American Journal Of Epidemiology 1995, 141: 70-78. PMID: 7801968, DOI: 10.1093/oxfordjournals.aje.a117347.Peer-Reviewed Original ResearchConceptsPreterm deliveryYale-New Haven HospitalGestational age infantsGestational-age birthsRisk factor analysisPutative risk factorsPassive smokingGestational ageAge infantsMaternal ageRisk factorsCaffeine consumptionSecondary analysisAlcohol useMarital statusSmokingBlack womenMarijuana useAgeOutcomesDeliveryNew Haven