scholarly journals Preterm Birth, Low Gestational Age, Low Birth Weight, Parity, and Other Determinants of Breech Presentation: Results from a Large Retrospective Population-Based Study

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Stefania Antonia Noli ◽  
Ilaria Baini ◽  
Fabio Parazzini ◽  
Paola Agnese Mauri ◽  
Michele Vignali ◽  
...  
Keyword(s):  
Birth Weight ◽  
Preterm Birth ◽  
Gestational Age ◽  
Maternal Age ◽  
Breech Presentation ◽  
Population Based ◽  
Previous Cesarean Section ◽  
Population Based Study ◽  
Main Determinants ◽  
Previous Cesarean

Aim of this study is to analyze determinants of breech presentation using information from two regional databases of Lombardy (Italy) including data on consecutive singleton breech and vertex deliveries occurred in the Region, between January 2010 and December 2015. Breech presentation occurred in 3.8% of all single deliveries. Main determinants of breech presentation at birth were: gestational age and birth weight (the lower, the higher the incidence of breech presentation), maternal age (the older the mother, the higher the risk of breech presentation), parity (the frequency of breech decreased with increasing parity) and previous cesarean section. Breech presentation resulted more frequent after assisted reproduction procedures.

scholarly journals Comparison of adverse perinatal outcomes between Asians and Caucasians: a population-based retrospective cohort study in Ontario

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Na Zeng ◽  
Erica Erwin ◽  
Wendy Wen ◽  
Daniel J. Corsi ◽  
Shi Wu Wen ◽  
...  
Keyword(s):  
Cohort Study ◽  
Birth Weight ◽  
Preterm Birth ◽  
Cesarean Section ◽  
Gestational Age ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Perinatal Outcomes ◽  
Population Based ◽  
Adverse Perinatal Outcomes

Abstract Background Racial disparities in adverse perinatal outcomes have been studied in other countries, but little has been done for the Canadian population. In this study, we sought to examine the disparities in adverse perinatal outcomes between Asians and Caucasians in Ontario, Canada. Methods We conducted a population-based retrospective cohort study that included all Asian and Caucasian women who attended a prenatal screening and resulted in a singleton birth in an Ontario hospital (April 1st, 2015-March 31st, 2017). Generalized estimating equation models were used to estimate the independent adjusted relative risks and adjusted risk difference of adverse perinatal outcomes for Asians compared with Caucasians. Results Among 237,293 eligible women, 31% were Asian and 69% were Caucasian. Asians were at an increased risk of gestational diabetes mellitus, placental previa, early preterm birth (< 32 weeks), preterm birth, emergency cesarean section, 3rd and 4th degree perineal tears, low birth weight (< 2500 g, < 1500 g), small-for-gestational-age (<10th percentile, <3rd percentile), neonatal intensive care unit admission, and hyperbilirubinemia requiring treatment, but had lower risks of preeclampsia, macrosomia (birth weight > 4000 g), large-for-gestational-age neonates, 5-min Apgar score < 7, and arterial cord pH ≤7.1, as compared with Caucasians. No difference in risk of elective cesarean section was observed between Asians and Caucasians. Conclusion There are significant differences in several adverse perinatal outcomes between Asians and Caucasians. These differences should be taken into consideration for clinical practices due to the large Asian population in Canada.

Associations of Birth Weight for Gestational Age with Child Health and Neurodevelopment among Term Infants: A Nationwide Japanese Population-Based Study

2020 ◽  
Vol 226 ◽  
pp. 135-141.e4
Author(s):  
Kei Tamai ◽  
Takashi Yorifuji ◽  
Akihito Takeuchi ◽  
Yu Fukushima ◽  
Makoto Nakamura ◽  
...  
Keyword(s):  
Birth Weight ◽  
Child Health ◽  
Gestational Age ◽  
Japanese Population ◽  
Population Based ◽  
Term Infants ◽  
Population Based Study

Birth weight by gestational age and risk of childhood acute leukemia: a population-based study 1961–2002

2011 ◽  
Vol 52 (4) ◽  
pp. 709-712 ◽  
Author(s):  
Svetlana V. Glinianaia ◽  
Mark S. Pearce ◽  
Judith Rankin ◽  
Tanja Pless-Mulloli ◽  
Louise Parker ◽  
...  
Keyword(s):  
Birth Weight ◽  
Acute Leukemia ◽  
Gestational Age ◽  
Population Based ◽  
Population Based Study ◽  
Childhood Acute Leukemia

The frequency of breech presentation by gestational age at birth: A large population-based study

1992 ◽  
Vol 166 (3) ◽  
pp. 851-852 ◽  
Author(s):  
Durlin E. Hickok ◽  
Diane C. Gordon ◽  
John A. Milberg ◽  
Michelle A. Williams ◽  
Janet R. Daling
Keyword(s):  
Gestational Age ◽  
Large Population ◽  
Breech Presentation ◽  
Population Based ◽  
Population Based Study ◽  
Gestational Age At Birth ◽  
Age At Birth

scholarly journals Maternal age and adverse pregnancy outcomes: a population-based register study in Wuhan, China, 2011-2016

2020 ◽  
Author(s):  
Jiangxia Cao ◽  
Bingzheng Zhang ◽  
Yan Liu ◽  
Ting Yu ◽  
Yiming Zhang ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Cesarean Delivery ◽  
Gestational Age ◽  
Pregnancy Outcomes ◽  
Apgar Score ◽  
Maternal Age ◽  
Population Based ◽  
Adverse Pregnancy Outcomes ◽  
Health Management Information System ◽  
Adverse Pregnancy

Abstract Background A trend towards increasing maternal age has been witnessed in China. Evidence from high-income countries has shown that older women have higher risks of various adverse pregnancy outcomes. However, few large, contemporary, population-based studies have adjusted for potential confounders in examining the association between maternal age and adverse pregnancy outcomes in China. Methods Data from the Wuhan Maternal and Child Health Management Information System including all women aged ≥20 years with live singleton pregnancies in 2011-2016 were analyzed. A range of adverse pregnancy outcomes including pregnancy induced hypertension disorder(PIH), gestational diabetes mellitus(GDM), cesarean delivery, postpartum hemorrhage, preterm birth, small-for-gestational age (SGA), large-for-gestational age (LGA), and 5-min Apgar score<7 among women aged 20-24, 30-35 and ≥40 years were compared with women aged 25-29 years using binary logistic regression models, with social-demographic characteristics, pre-pregnancy BMI, parity, and fetal gender adjusted. Subgroup analyses by stratifying on parity were also performed. Results 415,632 women were included during the study period. Among them, 91536(22.0%) were aged 20-24 years, 203687(49.0%) were aged 25-29 years, 89883(21.6%) were aged 30-34 years, 26271(6.3%) were aged 35-39 years, and 4255 (1.0%) were aged ≥40 years. After adjusting for the potential confounders, older maternal age (≥30 years) was associated with higher risks of PIH, GDM, cesarean delivery, preterm birth, LGA, and 5-min Apgar score<7, but not with SGA. Relative to older multiparous women, older nulliparous women were more likely to experience cesarean delivery, preterm birth, and 5-min Apgar score<7. Conclusion Older maternal age is independently associated with various adverse pregnancy outcomes. The risks may occur earlier than the commonly used definition of advanced maternal age, and may also differ by parity. Ensuring age and parity specific clinical counseling, antenatal surveillance, and health interventions may be of great significance to improve older mother’s pregnancy outcomes.

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