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Related Experiment Video

Updated: May 12, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
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Test Weight Validation In Preterm Infants.

Meredith Kinoshita1,2, Martin J White1,2, Anne Doolan1,3

  • 1The Coombe Hospital, Dublin, Ireland.

Breastfeeding Medicine : the Official Journal of the Academy of Breastfeeding Medicine
|December 4, 2024
PubMed
Summary

Accurate feed intake measurement is crucial for preterm infants. Standardized bedside test weights are reproducible and reliable for assessing intake during oral feeding transitions.

Keywords:
breastfeedingneonatologypreterm infanttest weight validation

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Area of Science:

  • Neonatal Medicine
  • Pediatric Nutrition
  • Clinical Measurement

Background:

  • Accurate assessment of feed intake is vital for preterm infants at risk of growth failure.
  • Existing clinical observation tools lack validation in this population.
  • Test weight measurement may be inaccurate for small feed volumes in preterm infants.

Purpose of the Study:

  • To assess the agreement between standardized test weights and known feed weights in preterm infants.
  • To evaluate the reproducibility of test weight measurements during oral feeding transitions.
  • To determine the minimal detectable change for feed intake assessment in this population.

Main Methods:

  • A standardized protocol for repeated pre- and post-feed weights was used in preterm infants (<35 weeks gestational age).
  • Reproducibility was assessed via two repeated measurements per participant.
  • Agreement between test weights and known feed weights was analyzed, and minimal detectable change was calculated.

Main Results:

  • Thirty-eight preterm infants were studied, with test weights performed at corrected gestational age 35+3 weeks.
  • High reproducibility was found for paired pre-feed weights (ICC=0.99) and post-feed weights (ICC=0.99).
  • The mean absolute difference between test weight and feed weight was 1.7 g, with a minimal detectable change of 0.96 g.

Conclusions:

  • A standardized bedside protocol for repeated pre- and post-feed weights demonstrates high reproducibility in preterm infants.
  • Test weight measurements are appropriate for use in preterm populations during the establishment of oral feeds.
  • This method provides accurate and reliable assessment of feed intake, crucial for monitoring growth.