title: The association between young maternal age and pregnancy outcome.
abstract: OBJECTIVE
  We aimed to determine the association between young maternal age at delivery with adverse pregnancy outcome in a single, tertiary, university-affiliated medical center.
  
  
  METHODS
  A retrospective, cohort, matched control study using the first percentile distribution of maternal age at delivery (21 years old, n = 461) as the study group, and four control groups by maternal age matched by parity in a 2:1 ratio (22-25, 26-30, 31-35 and 36-40 years; n = 922 each).
  
  
  RESULTS
  Women aged ≤21 years were found to have lower rates of chronic hypertension [compared with women aged 36-40 years old (0.0% versus 1.3%, p < 0.05)], lower rates of gestational diabetes mellitus (GDM) (1.3% versus 3.7%, p = 0.007), higher rates of perineal lacerations [compared with women aged 31-35 and 36-40 years old, 41% versus 31.8% and 31.1%, respectively, p < 0.01)], higher rates of postpartum hemorrhage (4.6% versus 1.5%, p < 0.0001) and higher rates of low 5-min Apgar score (2.2% versus 0.8%, p = 0.004). No significant differences were found in terms gestational age at delivery, birth weight, fetal sex, intrapartum or antepartum mortality.
  
  
  CONCLUSIONS
  Young maternal age at delivery is associated with increased risk of short-term complications after delivery.
authors.affiliation: Helen Schneider Hospital for Women, Rabin Medical Center , Petah-Tikva , Israel and.
authors.forename: Amir
authors.initials: A
authors.lastname: Aviram
authors.forename: Oded
authors.initials: O
authors.lastname: Raban
authors.forename: Nir
authors.initials: N
authors.lastname: Melamed
authors.forename: Eran
authors.initials: E
authors.lastname: Hadar
authors.forename: Arnon
authors.initials: A
authors.lastname: Wiznitzer
authors.forename: Yariv
authors.initials: Y
authors.lastname: Yogev
mesh_terms: D000328:Adult; D000367:Age Factors; D001034:Apgar Score; D001724:Birth Weight; D015331:Cohort Studies; D016640:Diabetes, Gestational / Q000453:epidemiology; D005260:Female; D005865:Gestational Age; D006801:Humans; D046110:Hypertension, Pregnancy-Induced / Q000453:epidemiology; D022125:Lacerations / Q000453:epidemiology; D008423:Maternal Age; D010502:Perineum / Q000293:injuries; D006473:Postpartum Hemorrhage / Q000453:epidemiology; D011247:Pregnancy; D011256:Pregnancy Outcome; D012189:Retrospective Studies; D055815:Young Adult