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Related Experiment Videos

Pubertal growth assessment.

Johan Karlberg1, Chi-Wai Kwan, Lars Gelander

  • 1Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China. jpekarl@hkucc.hku.hk

Hormone Research
|September 5, 2003
PubMed
Summary
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This study introduces a new pre-pubertal height standard for children with late puberty onset. It enables accurate final height prediction by considering individual pubertal timing and growth spurts.

Area of Science:

  • Pediatrics
  • Human Growth and Development
  • Biostatistics

Background:

  • Current height growth references often use cross-sectional data, which doesn't account for individual variations in pubertal timing.
  • Significant differences in pubertal growth spurt magnitude exist between early and late maturing children, complicating height assessments.

Purpose of the Study:

  • To develop a pre-pubertal standard for assessing height in children experiencing a late onset of puberty.
  • To introduce a reliable method for predicting final height based on pubertal onset.
  • To present a novel approach for evaluating total pubertal height gain, adjusted for puberty timing.

Main Methods:

  • Longitudinal growth data from 145 healthy Swedish children were analyzed.
  • A pre-pubertal standard was created to identify pubertal onset through changes in standard deviation scores.

Related Experiment Videos

  • A final height prediction model using height and age at pubertal onset was developed and validated.

    • Main Results:

    • The study identified a method to detect pubertal onset by a change of 0.3 or more in pre-pubertal height standard deviation scores over one year.
    • The final height prediction model demonstrated high accuracy with an r(2) value over 0.80 for both sexes.
    • A method was established to assess total pubertal height gain, accounting for individual puberty timing.

    Conclusions:

    • The developed pre-pubertal standard aids in assessing growth in late-maturing children.
    • Accurate final height prediction is achievable using the proposed method, which incorporates pubertal onset data.
    • The new method provides a more precise assessment of total pubertal height gain by adjusting for individual maturation timing.