Second-order polynomial interpolation was used to obtain percentile values for each bioimpedance parameter. Analysis of variance and multiple comparisons of Bonferroni were performed to compare variables among the different study intervals.
The evaluations were performed at 10-38 weeks' gestation, every 3-4 weeks, and hematocrit was determined at every time interval. Lukaski's multiple-regression equation was used to estimate TBW and ICW and ECW were computed using the prediction formula of Segal. The BIA measurements were carried out with a Tefal BIA scale determining resistance and reactance. A total of 170 healthy pregnant women, aged 22-44 years, volunteered to participate in our study. The aim of this study was to evaluate the changes in maternal body composition during healthy pregnancy by using bioimpedance analysis (BIA). Fat mass, fat-free mass, and total body water (TBW) increase in different ways and their effects on pregnancy outcome represent a field of major interest in perinatal medicine.
To check the status of each header, see Update progress.Maternal body composition undergoes a deep adaptative change during the course of pregnancy. Work is under progress to update the whole reference to the latest standard. Miscellaneous headers Standard Template Library: Algorithms (library) Time library (header) Unicode conversion facets (header) Complex numbers library (header) Standard exceptions (header) Function objects (header) Initializer list (header) Iterator definitions (header) Numeric limits (header) Localization library (header) Memory elements (header) Dynamic memory (header) Generalized numeric operations (header) Random (header) Ratio header (header) Regular Expressions (header) Exception classes (header) Strings (header) System errors (header) Tuple library (header) Type index (header) Type information (header) type_traits (header) Utility components (header) Library for arrays of numeric values (header)
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