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KMID : 0361720070180020125
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Korean Journal of perinatology
2007 Volume.18 No. 2 p.125 ~ p.130
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Impact of Maternal Age of 40 Years or Older on Pregnancy Outcomes
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Kil Ki-Cheol
Kim Sa-Jin
Shin Jong-Chul
Park In-Yang
Kim Soo-Pyung
Lee Gui-Se-Ra
Kwon Ji-Young
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Abstract
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Objective: The aim of this study was to examine the effects of maternal age on perinatal and obstetric outcomes with respect to maternal age older than 40 years.
Methods: A retrospective review of maternal and newborn medical records of women who delivered their babies in the hospitals of the Catholic University of Korea between January 1, 2000 and July 1, 2005 was conducted to compare pregnancy complications and perinatal outcomes in three age groups; women aged 25~29 years (group A; n=214), those aged 35~39 years (group B; n=276), and those aged 40 years and older (group C; n=347).
Results: The incidences of GDM (gestational diabetes mellitus), preterm birth and cesarean section in group C were by far the greatest among the three groups. The incidence of postterm delivery in group A was the highest among the three groups. Previous cesarean section and elderly gravida were the most frequent causes of cesarean section in group C. The incidences of low birth weight (<2,500 g) and the NMICU(neonatal medical intensive care unit) admission rate in group C were higher than those in group B, but not significantly different from those in group A.
Conclusion: Maternal ages of 35~39 years do not appear to be associated with adverse perinatal and obstetrical outcomes. Maternal ages of over 40 years influence the incidences of PIH (pregnancy induced hypertension), GDM, preterm birth, cesarean section, placenta previa, low birth weight and NMICU admission.
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KEYWORD
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Advanced maternal age, Perinatal outcome, Obsteric outcome
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