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Influences on childhood height: comparing two generations in the 1958 British birth cohort

Leah Li1, Chris Power

  • 1Centre for Paediatric Epidemiology and Biostatistics, Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK. L.Li@ich.ucl.ac.uk

International Journal of Epidemiology
|September 11, 2004
PubMed

Insights

Environmental influences on childhood height have decreased between recent generations in Great Britain. While parental genetics remain a strong predictor, factors like socioeconomic status have a weaker impact on offspring height.

Area of Science:

  • Human growth and development
  • Pediatric health
  • Sociogenetics

Background:

  • Genetics and early life environment are established determinants of human height.
  • Limited data exists on how these influences evolve across generations.

Purpose of the Study:

  • To investigate changes in the determinants of childhood height between two generations in Great Britain.
  • To compare the impact of genetic and environmental factors on height across generations.

Main Methods:

  • Utilized data from the 1958 British birth cohort study and their offspring (1991).
  • Measured childhood height (standard deviation scores) at ages 7 (cohort) and 4-18 (offspring).
  • Employed multilevel models to account for family structure in height analysis.

Main Results:

  • Childhood height increased by 1 cm in the offspring generation compared to the 1958 cohort.
  • Parental height remained the strongest predictor of childhood height in both generations.
  • Adverse environmental influences (e.g., maternal smoking, socioeconomic factors) showed diminished effects in the younger generation.

Conclusions:

  • The impact of adverse environmental factors on childhood height has significantly reduced between recent generations in Great Britain.
  • Genetic factors, specifically parental height, continue to be the primary driver of childhood height.
Abstract

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