Group antenatal care versus standard antenatal care and effect on mean gestational age at birth in Rwanda: protocol for a cluster randomized controlled trial.

Group antenatal care has demonstrated promise as a service delivery model that may result in improved outcomes compared to standard antenatal care in socio-demographic populations at disparately high risk for poor perinatal outcomes. Intrigued by results from the United States showing lower preterm birth rates among high-risk women who participate in group antenatal care, partners working together as the Preterm Birth Initiative - Rwanda designed a trial to assess the impact of group antenatal care on gestational age at birth. This study is a pair-matched cluster randomized controlled trial with four arms.

[Unwanted adolescent pregnancy and post-partum utilization of contraceptive methods].

Objective: To describe the proportion of unwanted pregnancies among all pregnant adolescents, its association with sociodemographic characteristics, and the use of post-partum contraceptive methods.

Material And Methods: A cross-sectional study was conducted among 220 women between 13 and 19 years of age, in two semi-urban municipalities of the State of Morelos, Mexico, interviewed between 1992 and 1994. Women were interviewed at home, six to twelve weeks after their delivery date.