Genetic and environmental influences on human height from infancy through adulthood at different levels of parental education
- PMID: 32409744
- PMCID: PMC7224277
- DOI: 10.1038/s41598-020-64883-8
Genetic and environmental influences on human height from infancy through adulthood at different levels of parental education
Abstract
Genetic factors explain a major proportion of human height variation, but differences in mean stature have also been found between socio-economic categories suggesting a possible effect of environment. By utilizing a classical twin design which allows decomposing the variation of height into genetic and environmental components, we tested the hypothesis that environmental variation in height is greater in offspring of lower educated parents. Twin data from 29 cohorts including 65,978 complete twin pairs with information on height at ages 1 to 69 years and on parental education were pooled allowing the analyses at different ages and in three geographic-cultural regions (Europe, North America and Australia, and East Asia). Parental education mostly showed a positive association with offspring height, with significant associations in mid-childhood and from adolescence onwards. In variance decomposition modeling, the genetic and environmental variance components of height did not show a consistent relation to parental education. A random-effects meta-regression analysis of the aggregate-level data showed a trend towards greater shared environmental variation of height in low parental education families. In conclusion, in our very large dataset from twin cohorts around the globe, these results provide only weak evidence for the study hypothesis.
Conflict of interest statement
The authors declare no competing interests.
Figures
References
-
- Galton F. Regression towards mediocrity in heriditary stature. Journal of the Anthropological Institute. 1886;15:246–262.
-
- Pearson K, Lee A. On the laws on inheritance in man. Biometrika. 1903;2:356–462. doi: 10.1093/biomet/2.3.356. - DOI
-
- Fisher RA. The correlation between relatives on the supposition of mendelian inheritance. Transactions of the Royal Society of Edinburgh. 1918;52:399–433. doi: 10.1017/S0080456800012163. - DOI
Publication types
MeSH terms
Grants and funding
- R01 AG022982/AG/NIA NIH HHS/United States
- R01 AG013662/AG/NIA NIH HHS/United States
- R21 AG039572/AG/NIA NIH HHS/United States
- R01 HD010333/HD/NICHD NIH HHS/United States
- K05 AA000145/AA/NIAAA NIH HHS/United States
- R01 AA012502/AA/NIAAA NIH HHS/United States
- R03 MH063851/MH/NIMH NIH HHS/United States
- R21 AA023322/AA/NIAAA NIH HHS/United States
- R21 MH070542/MH/NIMH NIH HHS/United States
- R01 MH081813/MH/NIMH NIH HHS/United States
- T32 DA017637/DA/NIDA NIH HHS/United States
- R01 MH092377/MH/NIMH NIH HHS/United States
- R01 AG018386/AG/NIA NIH HHS/United States
- R01 ES015150/ES/NIEHS NIH HHS/United States
- T32 AG052371/AG/NIA NIH HHS/United States
- R21 HD081437/HD/NICHD NIH HHS/United States
- R01 HD066040/HD/NICHD NIH HHS/United States
- R01 AA009203/AA/NIAAA NIH HHS/United States
- R01 AG018384/AG/NIA NIH HHS/United States
- R01 HD068435/HD/NICHD NIH HHS/United States
- R01 MH062375/MH/NIMH NIH HHS/United States
- R01 MH058354/MH/NIMH NIH HHS/United States
- R01 AG050595/AG/NIA NIH HHS/United States
- R01 HD092548/HD/NICHD NIH HHS/United States
- P60 DA011015/DA/NIDA NIH HHS/United States
- R01 AG022381/AG/NIA NIH HHS/United States
- R37 AA012502/AA/NIAAA NIH HHS/United States
