摘要:OBJECTIVES: This project investigated whether augmented prenatal care for high-risk African American women would improve pregnancy outcomes and patients' knowledge of risks, satisfaction with care, and behavior. METHODS: The women enrolled were African American, were eligible for Medicaid, had scored 10 or higher on a risk assessment scale, were 16 years or older, and had no major medical complications. They were randomly assigned to augmented care (n = 318) or usual care (n = 301). Augmented care included educationally oriented peer groups, additional appointments, extended time with clinicians, and other supports. RESULTS: Women in augmented care rated their care as more helpful, knew more about their risk conditions, and spent more time with their nurse-providers than did women in usual care. More smokers in augmented care quit smoking. Pregnancy outcomes did not differ significantly between the groups; however, among patients in augmented care, rates of preterm births were lower and cesarean deliveries and stays in neonatal intensive care units occurred in smaller proportions. Both groups had lower-than-predicted rates of low birthweight. CONCLUSIONS: High-quality prenatal care, emphasizing education, health promotion, and social support, significantly increased women's satisfaction, knowledge of risk conditions, and perceived mastery in their lives, but it did not reduce low birthweight.