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Modelling height in adolescence: a comparison of methods for estimating the age at peak height velocity.

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  • Additional Information
    • Source:
      Publisher: Taylor & Francis Country of Publication: England NLM ID: 0404024 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1464-5033 (Electronic) Linking ISSN: 03014460 NLM ISO Abbreviation: Ann Hum Biol Subsets: MEDLINE
    • Publication Information:
      Publication: 2015- : Abingdon, Oxford : Taylor & Francis
      Original Publication: London, Taylor & Francis.
    • Subject Terms:
      Body Height* ; Growth*; Anthropometry/*methods; Adolescent ; Age Factors ; Child ; Cohort Studies ; Humans ; Male ; Models, Biological ; Young Adult
    • Abstract:
      Background: Controlling for maturational status and timing is crucial in lifecourse epidemiology. One popular non-invasive measure of maturity is the age at peak height velocity (PHV). There are several ways to estimate age at PHV, but it is unclear which of these to use in practice.
      Aim: To find the optimal approach for estimating age at PHV.
      Subjects and Methods: Methods included the Preece & Baines non-linear growth model, multi-level models with fractional polynomials, SuperImposition by Translation And Rotation (SITAR) and functional data analysis. These were compared through a simulation study and using data from a large cohort of adolescent boys from the Christ's Hospital School.
      Results: The SITAR model gave close to unbiased estimates of age at PHV, but convergence issues arose when measurement error was large. Preece & Baines achieved close to unbiased estimates, but shares similarity with the data generation model for our simulation study and was also computationally inefficient, taking 24 hours to fit the data from Christ's Hospital School. Functional data analysis consistently converged, but had higher mean bias than SITAR. Almost all methods demonstrated strong correlations (r > 0.9) between true and estimated age at PHV.
      Conclusions: Both SITAR or the PBGM are useful models for adolescent growth and provide unbiased estimates of age at peak height velocity. Care should be taken as substantial bias and variance can occur with large measurement error.
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    • Grant Information:
      G1000726 United Kingdom MRC_ Medical Research Council
    • Contributed Indexing:
      Keywords: Age at peak height velocity; derivative estimation; lifecourse epidemiology; physical development; pubertal timing
    • Publication Date:
      Date Created: 20171109 Date Completed: 20180625 Latest Revision: 20250530
    • Publication Date:
      20250530
    • Accession Number:
      PMC5743008
    • Accession Number:
      10.1080/03014460.2017.1391877
    • Accession Number:
      29113497