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Related Experiment Video

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Assessment of Child Anthropometry in a Large Epidemiologic Study

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Published on: February 2, 2017

Can Basic Characteristics Estimate Body Composition in Early Infancy?

Nadia Liotto¹, Paola Roggero, Beatrice Bracco

¹Fondazione I.R.C.C.S. Ca Granda Ospedale Maggiore Policlinico, Neonatal Intensive Care Unit, Department of Clinical Science and Community Health, University of Milan, Milan, Italy.

Journal of Pediatric Gastroenterology and Nutrition

|September 28, 2017

Summary

Body composition in infancy impacts future health. Gestational age, sex, and weight can predict infant fat-free mass and fat mass when direct assessment isn't possible.

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Area of Science:

Pediatric Nutrition
Infant Health
Body Composition Analysis

Background:

Early life body composition is crucial for long-term health programming in both full-term and preterm infants.
Accurate, non-invasive methods for assessing infant body composition are increasingly recommended.

Purpose of the Study:

To identify key anthropometric measurements and basic characteristics that best correlate with infant body composition.
To develop a predictive equation for infant body composition using readily available data.

Main Methods:

Assessed body composition via air-displacement plethysmography in 1239 infants (full-term and preterm).
Investigated associations between sex, gestational age (GA), and weight with fat-free mass (FFM) and fat mass (FM) adjusted by length.
Utilized multiple linear regression and Bland-Altman tests to analyze data and derive an FFM calculation equation.

Main Results:

Preterm infants had significantly higher fat mass (FM) and lower fat-free mass (FFM) compared to full-term infants.
Gestational age (GA), male sex, and weight were positively associated with FFM.
GA and male sex showed negative associations with FM, while weight was positively associated with FM.

Conclusions:

Direct body composition assessment is the gold standard.
A predictive equation utilizing sex, gestational age (GA), and anthropometric measurements can reliably estimate body composition when direct assessment is not feasible for both full-term and preterm infants.