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Related Experiment Videos

[Secular trend of puberty].

G Bona1, N Castellino, A Petri

  • 1Clinica Pediatrica, Università degli Studi del Piemonte Orientale A. Avogadro, Novara, Italy. gianni.bona@maggioreosp.novara.it

Minerva Pediatrica
|October 22, 2002
PubMed
Summary
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This study found that children in Northern Italy are experiencing earlier puberty compared to historical data, indicating a positive secular trend in sexual maturation. Updated reference values are needed for accurate assessment of pubertal timing.

Area of Science:

  • Pediatrics
  • Endocrinology
  • Human Growth and Development

Context:

  • Pubertal timing is influenced by genetic and environmental factors.
  • Secular trends in sexual maturation have been observed across Europe.
  • Established pubertal staging scales, like Tanner's, require periodic re-evaluation.

Purpose:

  • To evaluate the age of onset of pubertal characteristics in Northern Italian children.
  • To compare current pubertal development data with Tanner's 1976 pubertal staging scale.
  • To identify secular trends in sexual maturation within the Italian population.

Summary:

  • A study of 3510 children (ages 6-15) in Northern Italy assessed pubertal development using Tanner stages.
  • Results indicate earlier pubertal onset for both males and females compared to Tanner's 1976 data, with earlier menarche observed in girls.

Related Experiment Videos

  • Calculated percentile distributions for key pubertal stages (B2, PH2, G2, VT4) and menarche age reveal a significant positive secular trend.

    • Impact:

    • Demonstrates a positive secular trend in pubertal development in Italy.
    • Highlights the necessity for updated reference values for sexual maturation timing in the Italian population.
    • Provides valuable data for pediatricians and endocrinologists managing adolescent development.