scholarly journals Association of Calcium Supplementation During Pregnancy with the Birth Weight of Single-Born Neonates in Rural Northwest China

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 1106-1106
Author(s):  
Gao Xiangyu ◽  
Mi Baibing ◽  
Dang Shaonong ◽  
Yan Hong
Keyword(s):  
Birth Weight ◽  
Gestational Age ◽  
Regression Models ◽  
Calcium Supplementation ◽  
Northwest China ◽  
Incidence Rates ◽  
Shaanxi Province ◽  
Significant Difference ◽  
Birth Weight Percentile ◽  
Weight Percentile

Abstract Objectives To investigate the association of calcium supplementation during the pregnancy with the birth weight of single-born neonates. Methods The survey employed a multistage, stratified and random sampling to investigate 15–49 aged pregnant women in 2010 to 2013 in Shaanxi province. A self - designed questionnaire was utilized. Birth weight between the 10(th) and 90(th) percentile was classified as appropriate for gestational age(AGA) infants. Chi-square test and logistic regression models were conducted to evaluate the association of calcium supplementation with single-born neonatal birth weight. Results A total of 28,490 women was enrolled in this study, 17 349 (60.9%) of participants had calcium supplementation during pregnancy. The incidence rates of small and large gestational age infants were 13.5% and 8.3%, respectively. The study conducted that calcium supplementation had a statistically significant difference in SGA (birth weight percentile <10) (P < 0.01). After adjusting the regression models by confounding factors, we found that calcium supplementation was still protective towards SGA birth, the difference was statistically significant (OR = 0.89, 95% CI: 0.82–0.96, P < 0.05), but there was no significant difference in the birth to LGA (birth weight percentile <10). Conclusions Calcium supplementation during pregnancy reduced the risk of SGA, but was not associated with the birth of LGA. Funding Sources

Treatment of 139 Pregnancies in Antiphospholipid-positive Women Not Fulfilling Criteria for Antiphospholipid Syndrome: A Retrospective Study

2013 ◽  
Vol 40 (4) ◽  
pp. 425-429 ◽  
Author(s):  
Teresa Del Ross ◽  
Amelia Ruffatti ◽  
Maria Serena Visentin ◽  
Marta Tonello ◽  
Antonia Calligaro ◽  
...  
Keyword(s):  
Birth Weight ◽  
Pregnancy Outcome ◽  
Gestational Age ◽  
Pregnancy Loss ◽  
Antiphospholipid Antibody ◽  
Birth Weight Percentile ◽  
Antibody Profile ◽  
Gestational Age At Birth ◽  
Age At Birth ◽  
Weight Percentile

Objective.The effect of low-dose aspirin (LDA) on pregnancy outcome in antiphospholipid (aPL)-positive women not fulfilling the criteria for antiphospholipid antibody syndrome (APS) was evaluated retrospectively.Methods.We evaluated 139 pregnancies of 114 aPL-positive women not fulfilling the Sydney classification criteria for definite APS (104 treated with LDA, 35 untreated). Inclusion criteria consisted of (1) any titer of aPL and no previous pregnancy or no pregnancy losses (defined as aPL carriers); (2) any titer of aPL and 1 or 2 pregnancy losses before the 10th gestational week. No women had previous thrombosis. The rate of pregnancy loss, gestational age at delivery, and birth weight percentile were compared in the treated and untreated patients. Associations between clinical and laboratory characteristics and pregnancy outcomes were investigated.Results.The rate of pregnancy loss was low in both treated and untreated groups (7.7% vs 2.9%, respectively). There were no statistically significant differences in the rate of pregnancy loss, gestational age at birth, or birth weight percentile in the treated and untreated groups. There were significant associations between gestational age at birth ≤ 34th week and positivity for lupus anticoagulant (p = 0.025) and anti-ß2-glycoprotein I IgG antibodies at titers > 99th (p = 0.016).Conclusion.LDA treatment does not appear to improve pregnancy outcome in low-risk women not fulfilling the criteria for APS. Because antibody profile seems to influence pregnancy outcome, further studies of patients stratified according to their antibody profile are warranted.

scholarly journals A need for an update of Polish birth weight reference norms

2020 ◽  
Vol 83 (1) ◽  
pp. 43-51
Author(s):  
Tomasz Hadada ◽  
Magdalena Kosińska
Keyword(s):  
Birth Weight ◽  
Gestational Age ◽  
Environmental Changes ◽  
Prenatal Development ◽  
Reference Standards ◽  
Time Period ◽  
Birth Weight Percentile ◽  
Developmental Norms ◽  
Weight Percentile ◽  
Singleton Pregnancies

AbstractThe indicators of perinatal outcome are birth weight and gestational age. The standard method of assessing the outcome is comparing the newborn’s birth weight with the reference system, presented in the form of percentile charts. Acceleration or delay in prenatal development, which are associated with environmental changes, stress the need to validate the developmental norms. The goal of this study is to evaluate the need to construct new and accurate reference standards. The study includes data of newborns from singleton pregnancies: 4919 born in 2000 and 3683 born in 2015. Study variables included gestational age, sex, and birth weight. Percentile values estimated for two groups of infants born in years separated by a 15-year period, born in 2000 and in 2015, were compared. Birth weight percentiles, from the 28th to the 42nd week of gestation, were calculated using the Lambda Mu Sigma method. Estimated values revealed the birth weight standards in different weeks of gestational age for both years: 2000 and 2015. Comparison among medians estimated for infants born in these years showed the existence of significant differences among boys in the 28th, 36th, and 39th weeks and among girls in the 34th and 41st weeks of gestational age. As the period between the two measurements involves several years, environmental changes during this time period might have significantly affected the course of pregnancy and thus the birth weight. Hence, there is a need to validate the developmental norms. The reference standards should be renewed, and must be done on a periodical basis.

scholarly journals Intrapartum epidural analgesia and emergency delivery rates due to fetal compromise by birth weight percentile

2022 ◽  
Vol 226 (1) ◽  
pp. S583
Author(s):  
Stefanie E. Damhuis ◽  
Henk Groen ◽  
Basky Thilaganathan ◽  
Wessel Ganzevoort ◽  
Sanne J. Gordijn
Keyword(s):  
Birth Weight ◽  
Epidural Analgesia ◽  
Birth Weight Percentile ◽  
Weight Percentile ◽  
Fetal Compromise

scholarly journals Differences in the pregnancy gestation period and mean birth weights in infants born to Indian, Pakistani, Bangladeshi and white British mothers in Luton, UK: a retrospective analysis of routinely collected data

BMJ Open ◽  
2017 ◽  
Vol 7 (8) ◽  
pp. e017139 ◽  
Author(s):  
Rebecca Garcia ◽  
Nasreen Ali ◽  
Andy Guppy ◽  
Malcolm Griffiths ◽  
Gurch Randhawa
Keyword(s):  
Birth Weight ◽  
Retrospective Analysis ◽  
Preterm Delivery ◽  
Outcome Measures ◽  
Gestational Age ◽  
Secondary Data ◽  
Significant Difference ◽  
Singleton Birth ◽  
Gestational Age At Delivery ◽  
Indian Mothers

ObjectiveTo compare mean birth weights and gestational age at delivery of infants born to Indian, Pakistani, Bangladeshi and white British mothers in Luton, UK.DesignRetrospective analysis using routinely recorded secondary data in Ciconia Maternity information System, between 2008 and 2013.SettingLuton, UK.ParticipantsMothers whose ethnicity was recorded as white British, Bangladeshi, Pakistani or Indian and living in Luton, aged over 16, who had a live singleton birth over 24 weeks of gestation were included in the analysis (n=14 871).Outcome measuresPrimary outcome measures were mean birth weight and gestational age at delivery.ResultsAfter controlling for maternal age, smoking, diabetes, gestation age, parity and maternal height and body mass index at booking, a significant difference in infants’ mean birth weight was found between white British and Indian, Pakistani and Bangladeshi infants, F(3, 12 287)=300.32, p<0.0001. The partial Eta-squared for maternal ethnicity was η2=0.067. The adjusted mean birth weight for white British infants was found to be 3377.89 g (95% CI 3365.34 to 3390.44); Indian infants, 3033.09 g (95% CI 3038.63 to 3103.55); Pakistani infants, 3129.49 g (95% CI 3114.5 to 3144.48); and Bangladeshi infants, 3064.21 g (95% CI 3041.36 to 3087.06). There was a significant association in preterm delivery found in primipara Indian mothers, compared with Indian mothers (Wald=8.192, df 1, p<0.005).ConclusionsResults show important differences in adjusted mean birth weight between Indian, Pakistani, Bangladeshi and white British women. Moreover, an association was found between primipara Indian mothers and preterm delivery, when compared with Pakistani, Bangladeshi and white British women.

scholarly journals Association of placental volume measured by MRI and birth weight percentile

2011 ◽  
Vol 34 (5) ◽  
pp. 1125-1130 ◽  
Author(s):  
Iris E. Derwig ◽  
Ranjit Akolekar ◽  
Fernando O. Zelaya ◽  
Penny A. Gowland ◽  
Gareth J. Barker ◽  
...  
Keyword(s):  
Birth Weight ◽  
Birth Weight Percentile ◽  
Placental Volume ◽  
Weight Percentile

scholarly journals Associations between Maternal and Fetal Inherited Thrombophilias, Placental Characteristics Associated with Vascular Malperfusion, and Fetal Growth

TH Open ◽  
2017 ◽  
Vol 01 (01) ◽  
pp. e43-e55
Author(s):  
Alexa Freedman ◽  
Carol Hogue ◽  
Donald Dudley ◽  
Robert Silver ◽  
Barbara Stoll ◽  
...  
Keyword(s):  
Birth Weight ◽  
Rhode Island ◽  
Fetal Growth ◽  
Methylenetetrahydrofolate Reductase ◽  
Factor V Leiden ◽  
Factor V ◽  
Factor V Leiden Mutation ◽  
Maternal Factor ◽  
Birth Weight Percentile ◽  
Weight Percentile

AbstractPregnancy results in alterations in coagulation processes, which may increase the risk of thrombosis. Inherited thrombophilia mutations may further increase this risk, possibly through alterations in the placenta, which may result in pregnancy complications such as poor fetal growth. The purpose of our study is to evaluate the association of fetal growth, approximated by birth weight for gestational age percentile, with genetic markers of thrombophilia and placental characteristics related to vascular malperfusion. We analyzed data from the Stillbirth Collaborative Research Network's population-based case–control study conducted in 2006–2008. Study recruitment occurred in five states: Rhode Island and counties in Massachusetts, Georgia, Texas, and Utah. The analysis was restricted to singleton, nonanomalous live births ≤42 weeks' gestation with a complete placental examination and successful testing for ≥1 thrombophilia marker (858 mothers, 902 infants). Data were weighted to account for oversampling, differential consent, and availability of placental examination. We evaluated five thrombophilia markers: factor V Leiden, factor II prothrombin, methylenetetrahydrofolate reductase A1298C and C677T, and plasminogen activator inhibitor type 1 in both maternal blood and placenta/cord blood. We modeled maternal and fetal thrombophilia markers separately using linear regression. Maternal factor V Leiden mutation was associated with a 13.16-point decrease in adjusted birth weight percentile (95% confidence interval: −25.50, −0.82). Adjustment for placental abnormalities related to vascular malperfusion did not affect the observed association. No other maternal or fetal thrombophilia markers were significantly associated with birth weight percentile. Maternal factor V Leiden may be associated with fetal growth independent of placental characteristics.

scholarly journals Effect of early and delayed cord clamping on hemoglobin and hematocrit among full term neonates.

2021 ◽  
Vol 28 (08) ◽  
pp. 1114-1119
Author(s):  
Saqib Aslam ◽  
◽  
Sadaf Minhas ◽  
Muhammad Azhar Farooq ◽  
Beenish Bashir Mughal ◽  
...  
Keyword(s):  
Birth Weight ◽  
Gestational Age ◽  
Full Term ◽  
P Value ◽  
Delayed Cord Clamping ◽  
Term Neonates ◽  
Cord Clamping ◽  
Significant Difference ◽  
Early Cord Clamping ◽  
The Mean

Objective: To compare the mean hemoglobin levels and frequency of polycythemia in full term neonates after early and delayed cord clamping. Study Design: Randomized Controlled Trial. Setting: KRL General Hospital Islamabad (Labor Room/ Neonatology). Periods: December 2017 to June 2018. Material & Methods: 190 full term neonates were selected and divided into 2 equal groups randomly: Early cord clamping group after delivery and late cord clamping group. Two hours after clamping the venous blood samples were taken for the hemoglobin and hematocrit levels. Mean and standard deviation were calculated for gestational age, birth weight, hemoglobin and hematocrit. Frequency and proportions were calculated for gender and polycythemia. Results: Mean gestational age of the mothers was 39.27 ± 1.50 weeks. Of 190 neonates, 91 (47.9%) were males, 99 (52.1%) were females. Mean birth weight was 3.64 ± 0.72 kg while mean Hb and HCT levels were 16.07 ± 2.30 g/dl and 63.26 ± 5.32% respectively. Keeping cut off value of 13.5 g/dl of Hb to label anemia or no, 35 (18.4%) neonates were anemic in this study. The polycythemia (HCT >65%) was present in 72 (37.9%) of neonates. There was no difference between groups in terms of gender, anemia, gestational age and birth weight (p values 0.663, 0.852, 0.700 and 0.491 respectively). The distribution of polycythemia was different among groups (p value 0.007). The mean hemoglobin level in group A was 15.52 ± 1.90 g/dl while in group B it was 16.62 ± 2.53 g/dl (p value 0.001). Mean Hb levels were statistically not different among some of the groups (gestational age <40 weeks, birth weight <4 kg) while HCT levels are significantly different among male group and category of birth weight >4 kg. Rest of the stratification groups showed significant difference. Conclusion: The delayed cord clamping in neonates results in increased mean hemoglobin and hematocrit levels with increased frequency of polycythemia as compared to early cord clamping.

scholarly journals Geographical variations in maternal dietary patterns during pregnancy associated with birth weight in Shaanxi province, Northwestern China

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254891
Author(s):  
Yini Liu ◽  
Huihui Zhang ◽  
Yaling Zhao ◽  
Fangyao Chen ◽  
Baibing Mi ◽  
...  
Keyword(s):  
Birth Weight ◽  
Dietary Patterns ◽  
Dietary Pattern ◽  
Northwest China ◽  
Population Based ◽  
Cross Sectional Study ◽  
Shaanxi Province ◽  
Cross Sectional ◽  
Geographical Variations ◽  
Geographically Weighted Logistic Regression

The geographical variation of maternal dietary patterns related to birth outcomes is important for improving the health of mothers and children; however, it is currently unknown. Thus, the objective of the study was to investigate geographical variations of maternal dietary pattern during pregnancy, and evaluate the spatial varying association of maternal dietary patterns in pregnancy with abnormal birth weight. A population-based cross-sectional study was conducted in Shaanxi province in Northwest China in 2013 to evaluate the relationship between abnormal birth weight and dietary pattern using the Geographically Weighted Logistic Regression (GWLR). Three dietary patterns during pregnancy were extracted through factor analysis, explaining approximately 45.8% of the variability of food intake. Approximately 81.6% of mothers with higher scores on the equilibrium pattern was more unlikely to have small for gestational age (SGA) infants, with the lower OR observed in Central and South Shaanxi. The snacks pattern was positively associated with low birth weight (LBW) for 23.2% of participants, with the highest OR in Central Shaanxi. Among about 80.0% of participants with higher scores on the snacks pattern living in South and Central Shaanxi, there was a higher risk for SGA. The OR values tend to descend from South to North Shaanxi. The OR values of the negative association between prudent pattern and LBW decreased from South to North Shaanxi among approximately 59.3% of participants. The prudent pattern was also negatively associated with the increasing risk of fetal macrosomia among 19.2% of participants living mainly in South Shaanxi. The association of maternal dietary patterns during pregnancy with abnormal birth weight varied geographically across Shaanxi province. The findings emphasize the importance of geographical distribution to improve the dietary patterns among disadvantaged pregnant women.

Sign in / Sign up

Export Citation Format

Share Document