Prospective follow-up of participants in a randomized trial of pregnancy and infancy nurse home visitation.Setting
Semirural community in Upstate New York.Participants
400 families in which the mothers registered before the 30th week of pregnancy and had no previous live births. Eighty-five percent of the mothers were either teenagers (<19 years at registration), unmarried, or poor. Analysis limited to whites who comprised 89% of the sample.Conclusions
The results of this study add to the increasingly consistent evidence that maternal cigarette smoking during pregnancy poses a unique risk for neurodevelopmental impairment among children and provide an additional reason for pregnant women not to smoke cigarettes. Pediatrics 1994;93:221-227; cigarette smoking, pregnancy, intelligence, children.