1983
Physical activity and the risk of spontaneous preterm delivery.
Berkowitz G, Kelsey J, Holford T, Berkowitz R. Physical activity and the risk of spontaneous preterm delivery. The Journal Of Reproductive Medicine 1983, 28: 581-8. PMID: 6631844.Peer-Reviewed Original ResearchConceptsPreterm deliveryPhysical activityLeisure-time physical activityYale-New Haven HospitalSingleton preterm infantsSingleton term infantsSpontaneous preterm deliveryPossible risk factorsModerate physical activityCase-control studyEpidemiologic case-control studyPhysical fitness exercisesPreterm infantsTerm infantsRisk factorsStudy groupPregnancyInfantsRiskFitness exercisesDeliveryMothersChild careQuestionnaire responsesHospital
1982
Effects of cigarette smoking, alcohol, coffee and tea consumption on preterm delivery
Berkowitz G, Holford T, Berkowitz R. Effects of cigarette smoking, alcohol, coffee and tea consumption on preterm delivery. Early Human Development 1982, 7: 239-250. PMID: 7160334, DOI: 10.1016/0378-3782(82)90086-x.Peer-Reviewed Original ResearchConceptsPreterm deliveryMothers of singletonsTea consumptionTerm infantsCigarette smokingRisk factorsYale-New Haven HospitalHeavy tea consumptionPossible risk factorsCase-control studyHeavy alcohol consumptionPreterm infantsMore cigarettesMore cupsCoffee drinkingAlcohol consumptionInfantsSmokingSignificant relationWomenDeliveryMothersRiskDaysSingletons