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Related Experiment Videos

[Puberty in Icelandic boys.].

A V Thornórsson1, A Dagbjartsson, G I Pálsson

  • 1Childrens hospital, Landspitali University Hospital, Fossvogi, 108 Reykjavík, Iceland. arniv@landspitali.is.

Laeknabladid
|October 5, 2006
PubMed
Summary
This summary is machine-generated.

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This study examined puberty onset in 2751 Icelandic boys aged 6-16. The average age for testicular volume increase (T 4) was 11.89 years, with pubic hair growth (PH 2) starting around 12.74 years.

Area of Science:

  • Pediatric endocrinology
  • Human growth and development
  • Adolescent health

Context:

  • Cross-sectional study of 2751 healthy Icelandic boys aged 6-16 years.
  • Data collected between 1983-1987 as part of a larger child growth study.
  • Focus on physical signs of puberty, including testicular volume and pubic hair development.

Purpose:

  • To determine the mean age of pubertal onset and progression in Icelandic boys.
  • To establish reference data for key pubertal milestones.
  • To compare the timing and tempo of puberty in Icelandic boys with other populations.

Summary:

  • The mean age for testicular volume of 4 ml (T 4), the first sign of puberty, was 11.89 years (SD 1.08).
  • Pubic hair growth to Tanner stage 2 (PH 2) was observed at a mean age of 12.74 years (SD 1.37).

Related Experiment Videos

  • The timing and tempo of puberty in Icelandic boys appear similar to those reported in other Nordic and Western European countries.

    • Impact:

    • Provides normative data for pubertal development in Icelandic boys.
    • Contributes to understanding geographical variations in puberty timing.
    • Informs clinical assessment and counseling for pediatricians and endocrinologists.