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A new age-based formula for estimating weight of Korean children

Jungho Park1, Young Ho Kwak, Do Kyun Kim

  • 1Department of Emergency Medicine, Incheon Sarang Hospital, Inchoen, Republic of Korea.

Resuscitation
|February 1, 2012
PubMed

Insights

A new age-based formula accurately estimates Korean children's body weight, outperforming existing methods. This simple formula aids in pediatric assessments for better health outcomes.

Area of Science:

  • Pediatrics
  • Biostatistics
  • Anthropometry

Background:

  • Accurate estimation of body weight is crucial for pediatric health assessments and clinical decision-making.
  • Existing weight estimation formulas may lack precision for specific pediatric populations, necessitating the development of region-specific tools.

Purpose of the Study:

  • To develop and validate a novel age-based formula for estimating body weight in Korean children.
  • To compare the accuracy of the new formula against established weight estimation methods.

Main Methods:

  • Utilized a large dataset (124,095 children) from a 2005 Korean Pediatric Society survey.
  • Employed regression analysis to derive age-specific equations for infants, preschool-aged, and school-aged children.
  • Validated the formula using a separate dataset and compared its performance against APLS, Shann, Leffler, Nelson, Best Guess, and Broselow tape methods.

Main Results:

  • Developed three simplified equations for different age groups: infants, preschool-aged, and school-aged children.
  • The new formula demonstrated a mean percentage error of +0.9%, significantly lower than other compared methods.
  • The estimated weights were slightly lower than actual weights (0.4kg difference), with high statistical significance (p<0.001).

Conclusions:

  • The newly developed age-based formula provides a simple and more accurate method for estimating body weight in Korean children.
  • This formula offers a valuable tool for pediatricians, potentially improving the accuracy of weight-based medical assessments.
  • Caution is advised when applying the formula to older children due to observed variations in estimated weight.
Abstract

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