The relationship between the maternal body mass index  and  clinical fetal weight estimation  in  term pregnancy

1Fertility and Infertility Research Center, Dept. of Obstetrics and Gynecology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran

2High Risk Pregnancy Research Center, Dept. of Obstetrics and Gynecology, School of Medicine, Kermanshah University of Medical Science, Kermanshah, Iran

3Dept. of Anesthesiology, School of Medicine, Kermanshah University of Medical Science, Kermanshah, Iran

4Dept. of Biostatistics, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran

Journal of Kermanshah University of Medical Sciences:Vol. 19, issue 4; e69867

Published online:Sep 19, 2015

Article type:Research Article

Received:Mar 08, 2015

Accepted:Aug 04, 2015

How to Cite:Maryam ZangenehFiroozeh Veisi Behzad EbrahimiShahla Safari The relationship between the maternal body mass index and clinical fetal weight estimation in term pregnancy.J Kermanshah Univ Med Sci.19(4):e69867.https://doi.org/10.22110/jkums.v19i4.2035.

Abstract

Background: The correct fetal weight estimation is one of the factors influencing the safety of delivery. This study was aimed to examine the impact of maternal body mass index (BMI) on the accuracy of clinical fetal weight estimation.

Methods: 456 singleton pregnant women, with gestational age of 37 - 41 weeks were recruited according to the inclusion criteria of the study and were divided into four groups of body mass index. Then, the actual fetal weight and estimated clinical fetal weight were recorded. Finally, the collected data were entered into SPSS software (version 16). Pearson correlation coefficient and chi-square test were applied to analyze the relationship between the study variables.

Results: With an increase in maternal body mass index (BMI), age, weight and parity, the accuracy of clinical estimation of fetal weight was reduced. The estimation error in all four groups of BMI was mainly reported for higher estimation of weight, which was increased with an increase in BMI. In the BMI >30, the estimation accuracy of fetal weight was 70%, which indicated the worthiness of this method in estimating the fetal weight in all four groups.

Conclusion: Clinical estimation of fetal weight is a reliable method to be used for the mothers with varied BMI, although its accuracy is diminished with increased maternal BMI.

Keywords

Body mass index

estimated fetal weight

actual fetal weight

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Search Relations

Author(s):

Maryam Zangeneh:[PubMed][Scholar]
Firoozeh Veisi :[PubMed][Scholar]
Behzad Ebrahimi:[PubMed][Scholar]
Shahla Safari :[PubMed][Scholar]