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Measurement errors for a portable device measuring short-term growth.

John H Himes1, Catherine Carson1, Alfred Pheley1

  • 1School of Public Health, University of Minnesota, Minneapolis, Minnesota 55455.

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|May 19, 2017
PubMed
Summary
This summary is machine-generated.

A portable Knee Height Measuring Device (KHMD) shows high reliability for measuring child growth. Despite slightly larger interobserver error than reported, its precision allows for detecting knee height changes faster than traditional methods.

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Area of Science:

  • Pediatric anthropometry
  • Biometric measurement devices
  • Growth monitoring tools

Background:

  • Accurate measurement of child growth is crucial for health assessments.
  • Conventional anthropometric methods can be time-consuming and less precise for detecting rapid changes.
  • Portable devices offer potential for more efficient and accessible growth monitoring.

Purpose of the Study:

  • To evaluate the measurement error of a portable Knee Height Measuring Device (KHMD).
  • To assess intraobserver, interobserver, and intrasubject variability using the KHMD.
  • To determine the suitability of the KHMD for detecting short-term knee height growth in children.

Main Methods:

  • A field trial involving a portable Knee Height Measuring Device (KHMD).
  • Repeated measurements by two anthropometrists on 40 children aged 8-9 years.
  • Calculation of machine, intraobserver, interobserver, and intrasubject measurement errors.

Main Results:

  • High intraclass reliabilities (0.9975-0.9983) were observed for the KHMD.
  • Interobserver technical error was 0.452 mm, slightly higher than developer's data.
  • Measurement errors were not significantly correlated with subject size or fatness.
  • Observed errors indicate sufficient precision for detecting short-term knee height growth.

Conclusions:

  • The portable Knee Height Measuring Device (KHMD) demonstrates high reliability for pediatric anthropometry.
  • The device's precision is adequate for monitoring short-term knee height growth.
  • KHMD offers a promising alternative to conventional methods for growth assessment in children.