Dataset Information

Placental weight and its relationship with the birth weight of term infants and body mass index of the mothers.

ABSTRACT:

Objective

Placental pathology is a well-known cause of perinatal and neonatal mortality and morbidity, and may correlate with placental growth, which can be assessed indirectly by anthropometric placental measurements. The aim of this cross-sectional study was to investigate mean placental weight and its relationship with birthweight and maternal body mass index (BMI).

Methods

Fresh (not formalin fixed) consecutively delivered placentae of term newborns (37-42 weeks), collected between February 2022 and August 2022, and the mothers and newborns, were included. Mean placental weight, birthweight and maternal BMI were calculated. Pearson's correlation coefficient, linear regression, and one-way analysis of variance were used to analyse continuous and categorical data.

Results

Out of 390 samples, 211 placentae (with 211 newborns and mothers) were included in this study after exclusion criteria were applied. Mean placental weight was 494.45 ± 110.39 g, and mean term birth weight/placental weight ratio was 6.21 ± 1.21 (range, 3.35-11.62 g). Placental weight was positively correlated with birthweight and maternal BMI, but not with newborn sex. Linear regression effect estimation of placental weight on birthweight revealed a medium correlation (R² = 0.212; formula, 1.4553 × X + 2246.7, where X is placental weight [g]).

Conclusion

Placental weight was revealed to positively correlate with birthweight and maternal BMI.

SUBMITTER: Sathasivam R

PROVIDER: S-EPMC10192661 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature

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Publications

Placental weight and its relationship with the birth weight of term infants and body mass index of the mothers.

Sathasivam Raveendran R Selliah Pranavan P Sivalingarajah Raguraman R Mayorathan Uruthirapasupathi U Munasinghe Baththirange Malaka BM

The Journal of international medical research 20230501 5

<h4>Objective</h4>Placental pathology is a well-known cause of perinatal and neonatal mortality and morbidity, and may correlate with placental growth, which can be assessed indirectly by anthropometric placental measurements. The aim of this cross-sectional study was to investigate mean placental weight and its relationship with birthweight and maternal body mass index (BMI).<h4>Methods</h4>Fresh (not formalin fixed) consecutively delivered placentae of term newborns (37-42 weeks), collected be ...[more]

PMID: 37194202

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Project description:ImportanceMaternal obesity, pregestational type 1 diabetes, and gestational diabetes have been reported to increase the risks for large birth weight and preterm birth in offspring. However, the associations for insulin-treated diabetes and non-insulin-treated type 2 diabetes, as well as the associations for joint diabetes disorders and maternal body mass index, with these outcomes are less well documented.ObjectiveTo examine associations of maternal diabetes disorders, separately and together with maternal underweight or obesity, with the offspring being large for gestational age and/or preterm at birth.Design, setting, and participantsThis population-based cohort study used nationwide registries to examine all live births (n = 649 043) between January 1, 2004, and December 31, 2014, in Finland. The study and data analysis were conducted from April 1, 2018, to October 10, 2018.ExposuresMaternal prepregnancy body mass index, pregestational diabetes with insulin treatment, pregestational type 2 diabetes without insulin treatment, and gestational diabetes.Main outcomes and measuresOffspring large for gestational age (LGA) at birth and preterm delivery. Logistic regression models were adjusted for offspring birth year; parity; and maternal age, country of birth, and smoking status.ResultsOf the 649 043 births, 4000 (0.62%) were delivered by mothers who had insulin-treated diabetes, 3740 (0.57%) by mothers who had type 2 diabetes, and 98 568 (15.2%) by mothers who had gestational diabetes. The mean (SD) age of mothers was 30.15 (5.37) years, and 588 100 mothers (90.6%) were born in Finland. Statistically significant interactions existed between maternal body mass index and diabetes on offspring LGA and prematurity (insulin-treated diabetes: LGA F = 3489.0 and prematurity F = 1316.4 [P < .001]; type 2 diabetes: LGA F = 147.3 and prematurity F = 21.9 [P < .001]; gestational diabetes: LGA F = 1374.6 and prematurity F = 434.3 [P < .001]). Maternal moderate obesity, compared with normal-weight mothers with no diabetes, was associated with a mildly increased risk of having an offspring LGA (1069 [3.5%] vs 5151 [1.5%]; adjusted odds ratio [aOR], 2.45; 95% CI, 2.29-2.62), and mothers with insulin-treated diabetes had markedly elevated risks of having an offspring LGA (1585 [39.6%] vs 5151 [1.5%]; aOR, 43.80; 95% CI, 40.88-46.93) and a preterm birth (1483 [37.1%] vs 17 481 [5.0%]; aOR, 11.17; 95% CI, 10.46-11.93). Mothers who were moderately obese with type 2 diabetes were at increased risks of LGA (132 [16.4%] vs 5151 [1.5%]; aOR, 12.44; 95% CI, 10.29-15.03) and prematurity (83 [10.3%] vs 17 481 [5.0%]; aOR, 2.14; 95% CI, 1.70-2.69). Mothers who were moderately obese with gestational diabetes had a milder risk of LGA (1195 [6.7%] vs 5151 [1.5%]; aOR, 4.72; 95% CI, 4.42-5.04). Among spontaneous deliveries, the risks were strongest for moderately preterm births, but insulin-treated diabetes was associated with an increased risk also for very and extremely preterm births.Conclusions and relevanceMaternal insulin-treated diabetes appeared to be associated with markedly increased risks for LGA and preterm births, whereas obesity in mothers with type 2 diabetes had mild to moderately increased risks; these findings may have implications for counseling and managing pregnancies.

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Dataset Information

Placental weight and its relationship with the birth weight of term infants and body mass index of the mothers.

Objective

Methods

Results

Conclusion

Publications

Placental weight and its relationship with the birth weight of term infants and body mass index of the mothers.

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