scholarly journals Fetal size monitoring and birth-weight prediction: a new population-based approach

2017 ◽  
Vol 49 (4) ◽  
pp. 500-507 ◽  
Author(s):  
H. K. Gjessing ◽  
P. Grøttum ◽  
I. Økland ◽  
S. H. Eik-Nes
1990 ◽  
Vol 6 (4) ◽  
pp. 427-431 ◽  
Author(s):  
D. Fraser ◽  
S. Weitzman ◽  
J. R. Leiberman ◽  
E. Eschwege

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Na Zeng ◽  
Erica Erwin ◽  
Wendy Wen ◽  
Daniel J. Corsi ◽  
Shi Wu Wen ◽  
...  

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.


Author(s):  
Charles Algert ◽  
Christine Roberts ◽  
Pamela Adelson ◽  
Michael Frommer

2016 ◽  
Vol 30 (21) ◽  
pp. 2545-2550 ◽  
Author(s):  
Sermin Timur Taşhan ◽  
Nevin Hotun Sahin ◽  
Mehtap Omaç Sönmez

PEDIATRICS ◽  
1989 ◽  
Vol 83 (4) ◽  
pp. 486-492
Author(s):  
Donna L. Gibson ◽  
Samuel B. Sheps ◽  
Martin T. Schechter ◽  
Sandra Wiggins ◽  
Andrew Q. McCormick

This study provides the first empiric evidence for the existence of a new epidemic of retinopathy of prematurity-induced blindness. Data from a population-based register of handicapping conditions in the Canadian province of British Columbia, and a birth weight-specific census of live-born infants in British Columbia, were used to determine annual, population-level incidences of retinopathy of prematurity-induced blindness during 1952 to 1983. Changes in incidence since the end of the original epidemic (1954) were determined by subdividing the 29-year period (1955 to 1983) into two intervals (1955 to 1964 and 1965 to 1983). Standardized incidence ratio analyses revealed a marginally significant increase in the overall incidence of retinopathy of prematurity-induced blindness in the later as compared with the earlier period. Infants weighing 750 to 999 g at birth had a significantly increased standardized incidence ratio of 3.07 (95% confidence interval 1.26, 11.06). No increases in risk were observed in heavier or lighter weight infants. Because ascertainment and diagnostic changes do not explain the weight-specific increases in incidence, these results provide the first population-level evidence for a new epidemic.


Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Julie Patenaude ◽  
Catherine Allard ◽  
Marilyn Lacroix ◽  
Laeticia Guillemette ◽  
Marie-Claude Battista ◽  
...  

Introduction: Leptin is a hormone secreted by adipocytes that circulates in proportion to body fat. Placenta also produces leptin suggesting a specific role during pregnancy, maybe contributing to pregnancy-induced insulin resistance. Objective: To determine the associations between maternal levels of leptin, glucose and insulin and weight/adiposity measures in newborns. Methods: A population-based cohort of pregnant women in the region of Sherbrooke, Canada was recruited in early pregnancy (n=1040 at 1 st trimester). Maternal anthropometry was measured and blood samples were collected at the 1 st and 2 nd trimesters to measure glucose (hexokinase), leptin and insulin (ELISA Luminex, Millipore Canada). Birth weights were recorded from the medical records in 783 newborns (full term >36 weeks). We measured skinfolds in 199 newborns within 72h after birth, using a standardized caliper. We measured triceps, biceps, subscapular and supra-iliac skinfolds and the sum of skinfolds was used for analysis representing overall neonatal adiposity. Correlations and linear regression analyses were performed to evaluate the associations between maternal metabolic characteristics and neonatal weight/adiposity measures. Results: Birth weight was associated with maternal body mass index (BMI; r=0.18 and r=0.20 at 1st and 2 nd trimesters respectively; both P <0.001), percent body fat (%bf; r=0.25; P <0.001), weight gain over pregnancy (r=0.14; P <0.001), and fasting leptin (r=0.15, P <0.001). Surprisingly, crude birth weight was not associated with maternal glycemic or insulin levels at 1 st or 2 nd trimesters (all P >0.05). In contrast, sum of skinfolds was associated with maternal fasting glucose (r=0.17, P =0.01) and fasting insulin (r=0.24, P =0.001), in addition to fasting leptin (r=0.18, P =0.01) at 2 nd trimester. Sum of skinfolds was also associated with maternal BMI (r=0.18, P =0.008 at 1 st and r=0.21, P =0.003 at 2 nd trimester) and %bf (r=0.19; P =0.005). After adjustments for maternal BMI or %bf, sum of skinfolds remained significantly associated with maternal fasting insulin (all P <0.05), but not with maternal leptin levels ( P =0.16 to 0.35) Conclusion: These results suggest that maternal insulin/glycemic regulation has a greater impact on neonatal adiposity than overall crude birth weight. Birth weight and neonatal adiposity are both associated with maternal leptin levels, likely representing maternal own adiposity levels that might influence neonatal outcomes directly or indirectly.


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