Effects of a school for pregnant students on the incidence of low-birthweight deliveries.

To evaluate effects of an alternative public school for pregnant teenagers in New Haven, CT, medical and school records were reviewed for a 1-year birth cohort of 230 adolescent mothers. Nearly three-quarters of all school-aged primiparas who were enrolled in the city's public schools when they became pregnant attended the alternative school. Because of summer vacation, however, students who conceived in January through April began attending later in pregnancy than did those who conceived in May through December; these mothers were significantly more likely to deliver a preterm, low-birthweight infant. No such seasonal effects were found for other teenagers in the city who were not enrolled in public school at conception. Positive birth outcomes for early program attenders are similar to those reported for a nurse-home-visitation program. The results suggest that school programs have considerable potential to be an effective service delivery model for providing prenatal intervention to adolescents.