Longitudinal changes and correlations of bioimpedance and anthropometric measurements in pregnancy: Simple possible bed-side tools to assess pregnancy evolution
Abstract
Purpose The aim of this study was to assess longitudinal changes of bioimpedance analysis compared with anthropometric measurements in low-risk pregnant woman recruited in the first trimester and to observe possible differences in these indices in women who developed high-risk pregnancies. Materials and methods Bioimpedance indices for the three trimesters of pregnancies were calculated separately for uneventful pregnancies delivered of newborns > the 10th centile. These findings were compared with anthropometric measurements. Data of women who developed hypertensive disorders of pregnancy (HDP) or delivered SGA newborns were calculated and compared. Results Significantly longitudinal increases were observed in these pregnancies for total body water (TBW), free fat mass, fat mass, and extra-cellular water. These increases were paralleled body mass index (BMI), skinfolds, and waist measurements. The correlations between these two sets of findings were poor. Women who developed HDP with AGA fetuses showed significantly different bioimpedance from normal cases. TBW indices were highly significantly different since the first trimester. In pregnancies delivered of SGA newborns, these indices were opposite of the values observed in patients with HDP-AGA, TBW in these patients was significantly reduced compared with normal pregnancies. Conclusions The bioelectrical impedance is a fast, simple, noninvasive way to assess the TBW content in pregnancy. Our findings are in agreement with…
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Compared to prior longitudinal BIA studies in healthy pregnant cohorts, which were often limited by small single-center sample sizes or lacked rigorous post hoc complication screening, the multicenter design and strict exclusion criteria ensured that these curves reflected a highly reliable physiological baseline.
“Compared to prior longitudinal BIA studies in healthy pregnant cohorts, which were often limited by small single-center sample sizes or lacked rigorous post hoc complication screening [25-27], our multicenter design and strict exclusion criteria ensured that these curves reflected a highly reliable physiological baseline.”
From Trimester-Specific Bioelectrical Impedance Reference Curves in Physiological Pregnancy: Mapping Maternal Body Composition and Hydration Trajectories (2026) · cites this paper as [25]
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Self-citation
- Authors
- Piuri, G., Ferrazzi, E., Bulfoni, C., Mastricci, L., Di Martino, D., & Speciani, A. F.
- Affiliations
- Inflammation Society
- University of Milan (IT)
- Department of Woman, Mother, and Neonate, Unit of Obstetrics, Buzzi Children's Hospital, University of Milan School of Medicine
- Corresponding author
- Ferrazzi, Enrico
- Venue
- The Journal of Maternal-Fetal & Neonatal Medicine
- Publisher
- Informa UK Limited
- Published
- 2016-12-14
- Volume
- 30
- Issue
- 23
- Pages
- 2824-2830
- ISSN
- 1476-4954 (ISSN-L)
- 1476-7058
- OpenAlex
- W2558981504
- Cited by
- 29
- References
- 27
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 4 · 2023: 3 · 2022: 5 · 2021: 5 · 2020: 2 · 2019: 3 · 2018: 3
- FWCI
- 2.58
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Journal of Maternal-Fetal & Neonatal Medicine (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
- Health Sciences › Medicine › Physiology › Body Composition Measurement Techniques
- Health Sciences › Medicine › Obstetrics and Gynecology › Gestational Diabetes Research and Management
- Keywords
- bioelectrical impedance analysis, pregnancy, total body water, hypertensive disorders of pregnancy, small for gestational age, anthropometry, body composition, body mass index, skinfold thickness, longitudinal change, high-risk pregnancy identification
- MeSH terms
- Point-of-Care Testing, Adult, Body Composition, Body Weights and Measures, Female, Humans, Infant, Newborn, Longitudinal Studies, Pre-Eclampsia, Pregnancy, Prenatal Diagnosis, Electric Impedance, Pregnancy, High-Risk, Hypertension, Pregnancy-Induced
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