title: [Congenital Anomalies Detected at Birth in Newborns of Adolescent Women].
abstract: BACKGROUND
  To analyze the prevalence of congenital anomalies detected at birth among children of pregnant adolescents, emphasizing the most common types and the time of diagnosis.
  
  
  METHODS
  Retrospective study of type census, in which were analyzed in all newborns, living or dead, weighing more than 500 g of women who gave birth at Hospital São Paulo in a period of six years. The fetuses bearing anomalies were identified prenatally or through postnatal physical examination period, according to the criteria of the Latin American Collaborative Study of Congenital Malformations. The results were expressed descriptively using absolute and relative values, the prevalence of anomalies was calculated, as well as the comparison between groups using nonparametric tests.
  
  
  RESULTS
  We analyzed 6 257 pregnancies, of which 577 newborns had some congenital anomaly identified at birth (prevalence 9.2%). Among these 6 257, 907 were adolescents, which showed a 9.9% prevalence of anomalies among their newborns. There was no significant difference between the presence of abnormalities in newborns of adolescents and women with age greater than or equal to 20 years. About 56% of congenital anomalies were diagnosed in the prenatal period. We observed a higher prevalence of defects of neural tube between newborns of adolescents (p = 0.027).
  
  
  CONCLUSIONS
  We observed high rate of deliveries in adolescents, higher than developed countries. We observed also high frequency of congenital anomalies in newborns, probably because our tertiary reference center. The high prevalence of neural tube defect among young pregnant women could be explained by the absent of acid folic supplementation in non-planned gestations which is typical of adolescents.
  
  
  CONCLUSIONS
  The prevalence and time of diagnosis of congenital anomalies showed similar behavior among newborns of teenagers and women with age greater than or equal to 20 years, except for the defects of the neural tube, which were more prevalent among newborns of teenagers.
authors: Departamento de Obstetrícia. Escola Paulista de Medicina. Universidade Federal de São Paulo. São Paulo. Brasil.
authors: Leandro Valim
authors: LV
authors: dos Reis
authors: Departamento de Obstetrícia. Escola Paulista de Medicina. Universidade Federal de São Paulo. São Paulo. Brasil.
authors: Edward
authors: E
authors: Araujo Júnior
authors: Departamento de Obstetrícia. Escola Paulista de Medicina. Universidade Federal de São Paulo. São Paulo. Brasil.
authors: Cristina Aparecida Falbo
authors: CA
authors: Guazzelli
authors: Disciplina de Genética. Departamento de Morfologia. Escola Paulista de Medicina. Universidade Federal de São Paulo. São Paulo. Brasil.
authors: Mirlene Cecilia Soares Pinho
authors: MC
authors: Cernach
authors: Departamento de Obstetrícia. Escola Paulista de Medicina. Universidade Federal de São Paulo. São Paulo. Brasil.
authors: Maria Regina
authors: MR
authors: Torloni
authors: Departamento de Obstetrícia. Escola Paulista de Medicina. Universidade Federal de São Paulo. São Paulo. Brasil.
authors: Antonio Fernandes
authors: AF
authors: Moron
mesh_terms: D000293:Adolescent; D000013:Congenital Abnormalities / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D009436:Neural Tube Defects / Q000175:diagnosis; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D015995:Prevalence; D012189:Retrospective Studies