Red Orbit, June 6, 2008 This report summarizes a study of Hispanic women by professor Roberta "Jeanne" Ruiz of the UTMB School of Nursing's Center for Nursing Research and Evaluation. The study, published in Obstetrics & Gynecology, found that study subjects who spoke English were four times more likely to suffer preterm births and have lower levels of hormones needed for a healthy pregnancy than were their non-English proficient counterparts. English proficiency is a sign of acculturation.