Relationship between some reproductive characteristics, Maternal Hb and Placental Weight

Document Type : Original Article

Authors

1 Assistant Professor, Department of Midwifery, Hazrate Fatemeh School of Nursing and Midwifery, Shiraz University of Medical Sciences, Shiraz, Iran.

2 Assistant Professor, Department of Midwifery, Nursing Care Research Center, Iran University of Medical Sciences, Tehran, Iran.

3 Instructor, Department of Midwifery, Kazeroon Islamic Azad University, Kazeroon, Iran.

Abstract

Introduction: Placental weight is one of the key determinants of its health and adequacy which is affected by some maternal fertility and biochemical properties. Therefore, this study was performed with aim to evaluate the relationship between maternal fertility characteristics and some blood markers with placental weight.
Methods: This cross-sectional analytic study was conducted on 365 parturient women referred to Kazeroon Vali-E-Asr maternity in 2017. The individual and fertility characteristics of qualified women (maternal age, gestational age, maternal weight in early pregnancy, maternal height, parity, Hb & HCT level and placental weight) were collected via a researcher-made questionnaire, and the placentas were weighted by standard scale. Data were analyzed by SPSS software (version 21) and person correlation coefficient and multiple regression analysis. PResults The mean placental weight was 583±1.3 g, mean BMI was 25.1± 5.3 kg/m2, mean hemoglobin level was 12.75±.0.94 mg/dl and mean hematocrit level was 28.23± 2.92%. There was significant and positive relationship between maternal BMI, gestational age (P< 0.05), and placental weight. In addition, the multiple regression coefficients indicated that BMI and gestational age are positive predictors of placental weight (P < 0.001, β= 0.24, and β= 0.20, respectively) and explained an overall 10% of the variance in placental weight. However, the distribution of placental weight had no significant relationship with parity, maternal age, Hb and HCT levels.
Conclusion: There was a significant relationship between placental weight with maternal BMI and gestational age. Therefore, in order to protect the proper function of the placenta, proper cares for favorable maternal BMI and proper weight gain and taking caution about pregnancy termination is recommended.  

Keywords

References

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The Iranian Journal of Obstetrics, Gynecology and Infertility
Volume 22, Issue 6
August 2019
Pages 14-19

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