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Associations between birth size and later height from infancy through adulthood: An individual based pooled analysis of 28 twin cohorts participating in the CODATwins project

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Aline Jelenkovic, Yoshie Yokoyama, Reijo Sund, Yoon-Mi Hur, Jennifer R. Harris, Ingunn Brandt, Thomas Sevenius Nilsen, Syuichi Ooki, Vilhelmina Ullemar, Catarina Almqvist, Patrik K.E. Magnusson, Kimberly J. Saudino, Maria A. Stazi, Corrado Fagnani, Sonia Brescianini, Tracy L. Nelson, Keith E. Whitfield, Ariel Knafo-Noam, David Mankuta, Lior Abramson & 48 others Tessa L. Cutler, John L. Hopper, Clare H. Llewellyn, Abigail Fisher, Robin P. Corley, Brooke M. Huibregtse, Catherine A. Derom, Robert F. Vlietinck, Morten Bjerregaard-Andersen, Henning Beck-Nielsen, Morten Sodemann, Robert F. Krueger, Matt McGue, Shandell Pahlen, S. Alexandra Burt, Kelly L. Klump, Lise Dubois, Michel Boivin, Mara Brendgen, Ginette Dionne, Frank Vitaro, Gonneke Willemsen, Meike Bartels, Catharina E.M. van Beijsterveld, Jeffrey M. Craig, Richard Saffery, Finn Rasmussen, Per Tynelius, Kauko Heikkila, Kirsi H. Pietilainen, Gombojav Bayasgalan, Danshiitsoodol Narandalai, Claire M.A. Haworth, Robert Plomin, Fuling Ji, Feng Ning, Zengchang Pang, Esther Robato, Adam D. Tarnoki, Jina Kim, Jooyoung Lee, Sooji Lee, Joohon Sung, Ruth J. F. Loos, Dorret I. Boomsma, Thorkild I. A. Sorensen, Jaakko Kaprio, Karri Silventoinen

Original languageEnglish
Pages (from-to)53-60
Number of pages8
JournalEarly Human Development
Volume120
Early online date12 Apr 2018
DOIs
StatePublished - May 2018

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Abstract

Background
There is evidence that birth size is positively associated with height in later life, but it remains unclear whether this is explained by genetic factors or the intrauterine environment.

Aim
To analyze the associations of birth weight, length and ponderal index with height from infancy through adulthood within mono- and dizygotic twin pairs, which provides insights into the role of genetic and environmental individual-specific factors.

Methods
This study is based on the data from 28 twin cohorts in 17 countries. The pooled data included 41,852 complete twin pairs (55% monozygotic and 45% same-sex dizygotic) with information on birth weight and a total of 112,409 paired height measurements at ages ranging from 1 to 69 years. Birth length was available for 19,881 complete twin pairs, with a total of 72,692 paired height measurements. The association between birth size and later height was analyzed at both the individual and within-pair level by linear regression analyses.

Results
Within twin pairs, regression coefficients showed that a 1-kg increase in birth weight and a 1-cm increase in birth length were associated with 1.14–4.25 cm and 0.18–0.90 cm taller height, respectively. The magnitude of the associations was generally greater within dizygotic than within monozygotic twin pairs, and this difference between zygosities was more pronounced for birth length.

Conclusion
Both genetic and individual-specific environmental factors play a role in the association between birth size and later height from infancy to adulthood, with a larger role for genetics in the association with birth length than with birth weight.

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