Vitamin D deficiency and visceral adipose tissue in early pregnant women.

Background: We aimed to assess the correlation between vitamin D serum level and visceral fat tissue during early pregnancy.

Methods: This cross-sectional study was performed in Pernambuco, Brazil. 190 low risk pregnant women (8-16 gestational weeks) were eligible.

Longitudinal variance of visceral fat thickness in pregnant adolescents.

This study aims to investigate the longitudinal change in visceral fat thickness (VFT) during normal pregnancy. A prospective cohort study with 75 primiparous adolescents was carried out in Petrolina, Brazil. VFT was evaluated by ultrasound between 12-20 weeks gestation and immediately after delivery.

Visceral adiposity in the first half of pregnancy predicts newborn weight among adolescent mothers.

Objective: Maternal obesity is a strong risk factor for gestational diabetes mellitus and fetal macrosomia. We assessed the association between maternal visceral adiposity tissue (VAT) depth in the first half of pregnancy and both glucose tolerance in late pregnancy and newborn weight in pregnant adolescents.

Methods: We completed a prospective cohort study of 73 pregnant adolescents aged 10 to 19 years, without pre-pregnancy diabetes.

Perinatal characteristics among early (10-14 years old) and late (15-19 years old) pregnant adolescents.

Background: Pregnancy in adolescents is a worldwide health problem and has been mostly common in poor populations. It is not clear if socioeconomic or biological factors are the main determinants of perinatal adverse outcomes in pregnant adolescents. Adolescents under 15 years old may present a high growth rate which may contribute to impair fetal growth.