scholarly journals Maternal early‐pregnancy ferritin and offspring neurodevelopment: A prospective cohort study from gestation to school age

2021 ◽  
Author(s):  
Sara Sammallahti ◽  
Henning Tiemeier ◽  
Irwin K. M. Reiss ◽  
Martina U. Muckenthaler ◽  
Hanan El Marroun ◽  
...  
Keyword(s):  
Cohort Study ◽  
Prospective Cohort Study ◽  
Early Pregnancy ◽  
Prospective Cohort ◽  
School Age

scholarly journals Accelerated Fetal Growth in Early Pregnancy and Risk of Preterm Birth: A Prospective Cohort Study

2020 ◽  
Author(s):  
Evangelia Elenis ◽  
Anna-Karin Wikström ◽  
Marija Simic
Keyword(s):  
Cohort Study ◽  
Preterm Birth ◽  
Prospective Cohort Study ◽  
Fetal Growth ◽  
Early Pregnancy ◽  
Prospective Cohort ◽  
Late Gestation ◽  
Second Trimester ◽  
Spontaneous Preterm Birth ◽  
Increased Risk

Abstract Background: Preterm birth (occurring before 37 completed weeks of gestation) affects 15 million infants annually, 7.5% of which die due to related complications. The detection and early diagnosis are therefore paramount in order to prevent the development of prematurity and its consequences. So far, focus has been laid on the association between reduced intrauterine fetal growth during late gestation and prematurity. The aim of the current study was to investigate the association between accelerated fetal growth in early pregnancy and the risk of preterm birth. Methods: This prospective cohort study included 69 617 singleton pregnancies without congenital malformations and with available biometric measurements during the first and second trimester. Estimation of fetal growth was based on measurements of biparietal diameter (BPD) at first and second trimester scan. We investigated the association between accelerated fetal growth and preterm birth prior to 37 weeks of gestation. The outcome was further stratified into very preterm birth (before 32 weeks of gestation) or moderate preterm birth (between 32 and 37 weeks of gestation) and medically induced or spontaneous preterm birth and was further explored. Results: The odds of prematurity were increased among fetuses with accelerated BPD growth (> 90th centile) estimated between first and second ultrasound scan, even after adjustment for possible confounders (aOR 1.36; 95% CI 1.20-1.54). The findings remained significant what regards moderate preterm births but not earlier births. Regarding medically induced preterm birth, the odds were found to be elevated in the group of fetuses with accelerated growth in early pregnancy (aOR 1.34; 95% CI 1.11-1.63). On the contrary, fetuses with delayed fetal growth exhibited lower risk for both overall and spontaneous preterm birth.Conclusions: Fetuses with accelerated BPD growth in early pregnancy, detected by ultrasound examination during the second trimester, exhibited increased risk of being born preterm. The findings of the current study suggest that fetal growth in early pregnancy should be taken into account when assessing the likelihood for preterm birth.

Physical activity during early pregnancy and antenatal depression: A prospective cohort study

2019 ◽  
Vol 16 ◽  
pp. 54-59
Author(s):  
Jonathan K.L. Mak ◽  
Andy H. Lee ◽  
Ngoc Minh Pham ◽  
Li Tang ◽  
Xiong-Fei Pan ◽  
...  
Keyword(s):  
Physical Activity ◽  
Cohort Study ◽  
Prospective Cohort Study ◽  
Early Pregnancy ◽  
Prospective Cohort ◽  
Antenatal Depression

Shorter sleep duration in early pregnancy is associated with birth length: a prospective cohort study in Wuhan, China

2017 ◽  
Vol 34 ◽  
pp. 99-104 ◽  
Author(s):  
Weiye Wang ◽  
Chunrong Zhong ◽  
Yu Zhang ◽  
Li Huang ◽  
Xi Chen ◽  
...  
Keyword(s):  
Cohort Study ◽  
Sleep Duration ◽  
Prospective Cohort Study ◽  
Early Pregnancy ◽  
Prospective Cohort ◽  
Birth Length

scholarly journals Accelerated fetal growth in early pregnancy and risk of preterm birth: a prospective cohort study

2020 ◽  
Author(s):  
Evangelia Elenis ◽  
Anna-Karin Wikström ◽  
Marija Simic
Keyword(s):  
Cohort Study ◽  
Preterm Birth ◽  
Prospective Cohort Study ◽  
Fetal Growth ◽  
Early Pregnancy ◽  
Prospective Cohort ◽  
Preterm Births ◽  
Second Trimester ◽  
Spontaneous Preterm Birth ◽  
Very Preterm

Abstract Background: Preterm birth (occurring before 37 completed weeks of gestation) affects 15 million infants annually, 7.5% of which die due to related complications. The detection and early diagnosis are therefore paramount in order to prevent the development of prematurity and its consequences. So far, focus has been laid on the association between reduced intrauterine fetal growth during late gestation and prematurity. The aim of the current study was to investigate the association between accelerated fetal growth in early pregnancy and the risk of preterm birth. Methods: This prospective cohort study included 69 617 singleton pregnancies without congenital malformations and with available biometric measurements during the first and second trimester. Estimation of fetal growth was based on measurements of biparietal diameter (BPD) at first and second trimester scan. We investigated the association between accelerated fetal growth and preterm birth prior to 37 weeks of gestation. The outcome was further stratified into very preterm birth (before 32 weeks of gestation) or moderate preterm birth (between 32 and 37 weeks of gestation) and medically induced or spontaneous preterm birth and was further explored. Results: The odds of prematurity were increased among fetuses with accelerated BPD growth (> 90th centile) estimated between first and second ultrasound scan, even after adjustment for possible confounders (aOR 1.36; 95% CI 1.20-1.54). The findings remained significant what regards moderate preterm births but not very preterm births. Regarding medically induced preterm birth, the odds were found to be elevated in the group of fetuses with accelerated growth in early pregnancy (aOR 1.34; 95% CI 1.11-1.63). On the contrary, fetuses with delayed fetal growth exhibited lower odds for both overall and spontaneous preterm birth.Conclusions: Fetuses with accelerated BPD growth in early pregnancy, detected by ultrasound examination during the second trimester, exhibited increased odds of being born preterm. The findings of the current study suggest that fetal growth in early pregnancy should be taken into account when assessing the risk for preterm birth.

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