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Education in Twins and Their Parents Across Birth Cohorts Over 100 years: An Individual-Level Pooled Analysis of 42-Twin Cohorts

Karri Silventoinen, Aline Jelenkovic, Antti Latvala, Reijo Sund, Yoshie Yokoyama, Vilhelmina Ullemar, Catarina Almqvist, Catherine Derom UGent, Robert F. Vlietinck, Ruth J. F. Loos, et al. (2017) TWIN RESEARCH AND HUMAN GENETICS. 20(5). p.395-405
abstract
Whether monozygotic (MZ) and dizygotic (DZ) twins differ from each other in a variety of phenotypes is important for genetic twin modeling and for inferences made from twin studies in general. We analyzed whether there were differences in individual, maternal and paternal education between MZ and DZ twins in a large pooled dataset. Information was gathered on individual education for 218,362 adult twins from 27 twin cohorts (53% females; 39% MZ twins), and on maternal and paternal education for 147,315 and 143,056 twins respectively, from 28 twin cohorts (52% females; 38% MZ twins). Together, we had information on individual or parental education from 42 twin cohorts representing 19 countries. The original education classifications were transformed to education years and analyzed using linear regression models. Overall, MZ males had 0.26 (95% CI [0.21, 0.31]) years and MZ females 0.17 (95% CI [0.12, 0.21]) years longer education than DZ twins. The zygosity difference became smaller in more recent birth cohorts for both males and females. Parental education was somewhat longer for fathers of DZ twins in cohorts born in 1990-1999 (0.16 years, 95% CI [0.08, 0.25]) and 2000 or later (0.11 years, 95% CI [0.00, 0.22]), compared with fathers of MZ twins. The results show that the years of both individual and parental education are largely similar in MZ and DZ twins. We suggest that the socio-economic differences between MZ and DZ twins are so small that inferences based upon genetic modeling of twin data are not affected.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
COGNITIVE-ABILITY, SWEDISH MEN, CODATWINS PROJECT, BODY-SIZE, INTELLIGENCE, AGE, ASSOCIATION, COUNTRIES, GENETICS, HEIGHT, twins, zygosity, education, parental education
journal title
TWIN RESEARCH AND HUMAN GENETICS
Twin Res. Hum. Genet.
volume
20
issue
5
pages
11 pages
publisher
Cambridge Univ Press
place of publication
New york
Web of Science type
Article
Web of Science id
000412597600005
ISSN
1832-4274
1839-2628
DOI
10.1017/thg.2017.49
language
English
UGent publication?
yes
classification
U
id
8559153
handle
http://hdl.handle.net/1854/LU-8559153
date created
2018-04-16 12:54:42
date last changed
2018-04-16 12:54:42
@article{8559153,
  abstract     = {Whether monozygotic (MZ) and dizygotic (DZ) twins differ from each other in a variety of phenotypes is important for genetic twin modeling and for inferences made from twin studies in general. We analyzed whether there were differences in individual, maternal and paternal education between MZ and DZ twins in a large pooled dataset. Information was gathered on individual education for 218,362 adult twins from 27 twin cohorts (53\% females; 39\% MZ twins), and on maternal and paternal education for 147,315 and 143,056 twins respectively, from 28 twin cohorts (52\% females; 38\% MZ twins). Together, we had information on individual or parental education from 42 twin cohorts representing 19 countries. The original education classifications were transformed to education years and analyzed using linear regression models. Overall, MZ males had 0.26 (95\% CI [0.21, 0.31]) years and MZ females 0.17 (95\% CI [0.12, 0.21]) years longer education than DZ twins. The zygosity difference became smaller in more recent birth cohorts for both males and females. Parental education was somewhat longer for fathers of DZ twins in cohorts born in 1990-1999 (0.16 years, 95\% CI [0.08, 0.25]) and 2000 or later (0.11 years, 95\% CI [0.00, 0.22]), compared with fathers of MZ twins. The results show that the years of both individual and parental education are largely similar in MZ and DZ twins. We suggest that the socio-economic differences between MZ and DZ twins are so small that inferences based upon genetic modeling of twin data are not affected.},
  author       = {Silventoinen, Karri and Jelenkovic, Aline and Latvala, Antti and Sund, Reijo and Yokoyama, Yoshie and Ullemar, Vilhelmina and Almqvist, Catarina and Derom, Catherine and Vlietinck, Robert F. and Loos, Ruth J. F. and Kandler, Christian and Honda, Chika and Inui, Fujio and Iwatani, Yoshinori and Watanabe, Mikio and Rebato, Esther and Stazi, Maria A. and Fagnani, Corrado and Brescianini, Sonia and Hur, Yoon-Mi and Jeong, Hoe-Uk and Cutler, Tessa L. and Hopper, John L. and Busjahn, Andreas and Saudino, Kimberly J. and Ji, Fuling and Ning, Feng and Pang, Zengchang and Rose, Richard J. and Koskenvuo, Markku and Heikkilae, Kauko and Cozen, Wendy and Hwang, Amie E. and Mack, Thomas M. and Siribaddana, Sisira H. and Hotopf, Matthew and Sumathipala, Athula and Rijsdijk, Fruhling and Sung, Joohon and Kim, Jina and Lee, Jooyeon and Lee, Sooji and Nelson, Tracy L. and Whitfield, Keith E. and Tan, Qihua and Zhang, Dongfeng and Llewellyn, Clare H. and Fisher, Abigail and Burt, S. Alexandra and Klump, Kelly L. and Knafo-Noam, Ariel and Mankuta, David and Abramson, Lior and Medland, Sarah E. and Martin, Nicholas G. and Montgomery, Grant W. and Magnusson, Patrik K. E. and Pedersen, Nancy L. and Aslan, Anna K. Dahl and Corley, Robin P. and Huibregtse, Brooke M. and OEncel, Sevgi Y. and Aliev, Fazil and Krueger, Robert F. and Mcgue, Matt and Pahlen, Shandell and Willemsen, Gonneke and Bartels, Meike and Van Beijsterveldt, Catharina E. M. and Silberg, Judy L. and Eaves, Lindon J. and Maes, Hermine H. and Harris, Jennifer R. and Brandt, Ingunn and Nilsen, Thomas S. and Rasmussen, Finn and Tynelius, Per and Baker, Laura A. and Tuvblad, Catherine and Ordonana, Juan R. and Sanchez-Romera, Juan F. and Colodro-Conde, Lucia and Gatz, Margaret and Butler, David A. and Lichtenstein, Paul and Goldberg, Jack H. and Harden, K. Paige and Tucker-Drob, Elliot M. and Duncan, Glen E. and Buchwald, Dedra and Tarnoki, Adam D. and Tarnoki, David L. and Franz, Carol E. and Kremen, William S. and Lyons, Michael J. and Maia, Jose A. and Freitas, Duarte L. and Turkheimer, Eric and Sorensen, Thorkild I. A. and Boomsma, Dorret I. and Kaprio, Jaakko},
  issn         = {1832-4274},
  journal      = {TWIN RESEARCH AND HUMAN GENETICS},
  keyword      = {COGNITIVE-ABILITY,SWEDISH MEN,CODATWINS PROJECT,BODY-SIZE,INTELLIGENCE,AGE,ASSOCIATION,COUNTRIES,GENETICS,HEIGHT,twins,zygosity,education,parental education},
  language     = {eng},
  number       = {5},
  pages        = {395--405},
  publisher    = {Cambridge Univ Press},
  title        = {Education in Twins and Their Parents Across Birth Cohorts Over 100 years: An Individual-Level Pooled Analysis of 42-Twin Cohorts},
  url          = {http://dx.doi.org/10.1017/thg.2017.49},
  volume       = {20},
  year         = {2017},
}

Chicago
Silventoinen, Karri, Aline Jelenkovic, Antti Latvala, Reijo Sund, Yoshie Yokoyama, Vilhelmina Ullemar, Catarina Almqvist, et al. 2017. “Education in Twins and Their Parents Across Birth Cohorts Over 100 Years: An Individual-Level Pooled Analysis of 42-Twin Cohorts.” Twin Research and Human Genetics 20 (5): 395–405.
APA
Silventoinen, K., Jelenkovic, A., Latvala, A., Sund, R., Yokoyama, Y., Ullemar, V., Almqvist, C., et al. (2017). Education in Twins and Their Parents Across Birth Cohorts Over 100 years: An Individual-Level Pooled Analysis of 42-Twin Cohorts. TWIN RESEARCH AND HUMAN GENETICS, 20(5), 395–405.
Vancouver
1.
Silventoinen K, Jelenkovic A, Latvala A, Sund R, Yokoyama Y, Ullemar V, et al. Education in Twins and Their Parents Across Birth Cohorts Over 100 years: An Individual-Level Pooled Analysis of 42-Twin Cohorts. TWIN RESEARCH AND HUMAN GENETICS. New york: Cambridge Univ Press; 2017;20(5):395–405.
MLA
Silventoinen, Karri, Aline Jelenkovic, Antti Latvala, et al. “Education in Twins and Their Parents Across Birth Cohorts Over 100 Years: An Individual-Level Pooled Analysis of 42-Twin Cohorts.” TWIN RESEARCH AND HUMAN GENETICS 20.5 (2017): 395–405. Print.