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Correlations between embryo morphokinetic development and maternal age: Results from an intracytoplasmic sperm injection program

Faramarzi , Khalili MA, Mangoli E

OBJECTIVE: It is widely accepted that aging decreases women’s fertility capacity. The aim of this study was to assess correlations between maternal age and the morphokinetic parameters and cleavage pattern...
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Perinatal outcome of twin pregnancies according to maternal age

Lee YJ, Kim MN, Kim YM, Sung JH, Choi SJ, Oh SY, Roh CR, Kim JH

OBJECTIVE: To investigate the perinatal outcomes of twin pregnancies according to maternal age. METHODS: This is a retrospective cohort study of twin pregnancies delivered ≥24 weeks' gestation at a tertiary academic...
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Impact of Changes in Maternal Age and Parity Distribution on the Increasing Trends in the Low Birth Weight and Very Low Birth Weight Rates in South Korea, 2005-2015

Oh Y, Bae J

OBJECTIVES: The aim of this study was to evaluate the impact of shifts in maternal age and parity on the increasing trends in the low birth weight (LBW) and very...
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Trends in Birth Weight and the Incidence of Low Birth Weight and Advanced Maternal Age in Korea between 1993 and 2016

Kim HE, Song IG, Chung SH, Choi YS, Bae CW

BACKGROUND: As the aging society progresses, the average age of mothers is also increasing. Advanced maternal age has been known to be associated with perinatal outcomes, as well as birth...
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Change in rates of prenatal tests for chromosomal abnormality over a 12-year period in women of advanced maternal age

Kim SM, Kim HH, Han YJ, Choi JS, Ryu HM, Yang S, Kim MH

OBJECTIVE: In 2007, the American College of Obstetricians and Gynecologists (ACOG) recommended that all pregnant women be offered screening or diagnostic tests for chromosomal abnormalities regardless of their age. Noninvasive...
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Risk Factors for Preterm Birth in Advanced Maternal Age

Kwon EJ, Lee KJ, Cho A, Park S, Park MH, Kim YJ, The Korean Preterm Collaborate Network Group

PURPOSE: To identify the potential risk factors for preterm birth (PTB) in women with advanced maternal age in the Korean population. METHODS: We selected the data of 531 pregnant women and...
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Difference in Maternal Weight Gain and Pregnancy Outcomes According to Pregnancy at an Advanced Maternal Age at a Single Women's Hospital in South Korea

Kim HK, Kim HS

PURPOSE: This study aimed to investigate the differences of pregnancy outcomes according to advanced-age pregnancy among Korean women in South Korea. METHODS: This study used nursing records of 242 women who...
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Contribution of Maternal Age Distribution to Incidence of Preterm Birth in Multiple Births; from 1997~98 to 2014~15

Park SH, Lim DO

PURPOSE: To figure out the contribution of maternal age distribution to the preterm birth (PTB) rate of multiple births between 1997~98 and 2014~15. METHODS: Multiple birth certificate data of Korea Statistics...
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Efficacy of embryo transfer on day 2 versus day 3 according to maternal age in patients with normal ovarian response

Lee JW, Cha JH, Shin SH, Kim YJ, Lee SK, Park CK, Pak KA, Yoon JS, Park SY

OBJECTIVE: Delaying embryo transfer (ET) enables us to select among the embryos available for transfer and is associated with positive effects on implantation and pregnancy outcomes. However, the optimal day...
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The Relationship between Maternal Age at Birth and Intertwin Birth Weight Discordance in Korea

Park SH, Lim DO

PURPOSE: To compare the relationship between intertwin birth weight discordance and maternal age at birth. METHODS: There were 51,726 pairs of twins born from 2007 to 2014 according to the birth...
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Effects of maternal age on embryo quality and pregnancy outcomes using testicular sperm with intracytoplasmic sperm injection

Choi HW, Park YS, Lee SH, Lim CK, Seo JT, Yang KM

OBJECTIVE: The aim of this study was to evaluate the influence of maternal age on fertilization, embryo quality, and clinical pregnancy in patients undergoing intracytoplasmic sperm injection (ICSI) using testicular...
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Contribution of Maternal Age Distribution to Incidence of Preterm Birth; 1997~99 and 2012~14 Singleton Birth Certificated Data of Korea

Park SH, Kim H, Lim DO

PURPOSE: The objective of the study was to compare contribution of maternal age to preterm birth (PTB) rates between 1997~99 and 2012~14. METHODS: We used 1997~99 (1,872,720 births) and 2012~14 (1,280,348...
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Comparing Nutrition Knowledge, Eating Habits, and Neonatal Health Status of Primipara for Pregnant Women of Advanced Maternal Age Compared to Those of Younger Ages

Lee SO, Park KY, Han MJ

PURPOSE: The aim of this study was to examine differences in nutrition knowledge, eating habits during pregnancy, and neonatal health status between primipara for pregnant women of advanced maternal age...
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Weight Gain in Pregnancy, Maternal Age and Gestational Age in Relation to Fetal Macrosomia

Li Y, Liu QF, Zhang D, Shen Y, Ye K, Lai HL, Wang HQ, Hu CL, Zhao QH, Li L

To investigate the possible risk factors related to macrosomia. Pregnant women and their newborns (n = 1041) were recruited from a cohort study in Maternal and Child Care Center of...
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Advanced Maternal Age and Weight at Birth in Newborn Infants: Distribution and Clinical Characteristics

Cho KH, Jo HS, Cho SI, Eom YA, Rhie S, Lee KH

PURPOSE: This study aimed to compare the neonatal outcome by quantifying the effect of maternal age on low birth weight (LBW). METHODS: We reviewed the medical records of 12,742 newborn infants...
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Comparison of Prenatal Health Management State and Educational Needs for Pregnant Women with Advanced Maternal Age and Under the Age of 35

Wang HJ, Park HS, Kim IO

PURPOSE: This study was done to confirm prenatal health management and educational needs for pregnant women with advanced maternal age (AMA) and pregnant women under 35 years of age. METHODS: This...
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Impact of Maternal Age of 40 Years or Older on Pregnancy Outcomes

Kil K, Lee GS, Kwon JY, Park IY, Kim SJ, Shin JC, Kim SP

  • KMID: 2280597
  • Korean J Perinatol.
  • 2007 Jun;18(2):125-130.
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...
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Influence of Maternal Age on Embryo Quality and the Frequency of Multiple Pregnancy in IVF-ET Program

Lee MS, Park JO, Jung JH, Park JS, Kang HG, Kim DH, Lee HJ

  • KMID: 2085141
  • Korean J Fertil Steril.
  • 2000 Sep;27(3):261-266.
OBJECTIVE: This study was performed to evaluate the influence of maternal age on embryo quality and the frequency of multiple pregnancy in IVF-ET program. METHOD: 86 conventional IVF-ET cycles were divided...
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Changes in Maternal Age and the Incidence of Down Syndrome

Oh CW, Lim SS, Kim KB, Kee WJ

  • KMID: 2208168
  • J Korean Pediatr Soc.
  • 1996 Nov;39(11):1512-1519.
PURPOSE: The incidence of Down syndrome, the most common chromosoaml anomaly, increases with the advanced maternal age. Recently, however, the incidence of Down symdrome was reported to have decreased with...
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Clinical analysis of the effect of maternal age on primary cesarean birth rate

Kim A, Lee IS, Mok JE

  • KMID: 1691469
  • Korean J Perinatol.
  • 1993 Mar;4(1):57-65.
No abstract available.
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