A multiple regression analysis studied additive effects of maternal age and prenatal and perinatal factors in relation to neonatal behavior. Analysis indicated that the combination of biomedical variables significantly predicted neonatal behavior, in both cultures (Florida and Puerto Rico), suggesting that age effects increased in the presence of…

Providing several examples of current research efforts, this report describes the research on maternal and child health supported by the National Institute of Child Health and Human Development (NICHD). The Institute conducts a coordinated program of research and research training to advance knowledge related to pregnancy and maternal health,…

Relations of contraceptive behavior, problem behaviors, and health-protective behaviors were examined in an ethnically and socioeconomically diverse sample of sexually active adolescents. Findings demonstrate substantial organization among adolescent health and problem behaviors and suggest that contraceptive behavior should be conceptualized…