Gestational age and infant size at birth are associated with dietary sugar intake among pregnant adolescents.

The objective of this study was explore the relationship between pregnancy outcomes and dietary sugar intake by pregnant adolescents. From two urban, prenatal clinics in the City of Camden, NJ, a cohort of 594 nondiabetic, pregnant adolescents, aged 13-19 y, who delivered live, singleton newborns between 1985 and 1990, was recruited and followed through pregnancy. Registered dietitians collected up to three 24-h recalls during pregnancy. The adolescents were categorized according to total sugar in their diets, with those in the top 10th percentile defined as high sugar consumers (> or = 206 g, n = 60) and the remainder as reference consumers (< 206 g). Primary outcome measures were birth of small-for-gestational-age infants and gestational age. The cohort was 61% black, 30% Hispanic (Puerto Rican) and 9% white. The adjusted odds ratio was 2.01 (95% confidence interval 1.05-7.53) for the delivery of a small-for-gestational-age infant for adolescents consuming high sugar diets, regardless of their ethnicity. In addition, gestational age at delivery was -1.69 +/- 0.62 wk (beta +/- SE) shorter among Puerto Rican adolescents consuming high sugar diets (P = 0.007) compared with all reference sugar consumers and white adolescents consuming high sugar diets. Black adolescents consuming high sugar diets did not exhibit a shortening of gestation. Thus, adolescents consuming high sugar diets are at increased risk for delivering small-for-gestational-age infants, and for delivering infants earlier if they are of Puerto Rican ethnicity.