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  • 1.
    Jelenkovic, Aline
    et al.
    Univ Helsinki, Dept Social Res, FIN-00014 Helsinki, Finland.;Univ Basque Country UPV EHU, Dept Genet Phys Anthropol & Anim Physiol, Leioa, Spain..
    Yokoyama, Yoshie
    Osaka City Univ, Dept Publ Hlth Nursing, Osaka 558, Japan..
    Sund, Reijo
    Univ Helsinki, Dept Social Res, FIN-00014 Helsinki, Finland..
    Honda, Chika
    Osaka Univ, Osaka Univ Grad Sch Med, Osaka, Japan..
    Bogl, Leonie H.
    Univ Helsinki, Dept Publ Hlth, FIN-00014 Helsinki, Finland..
    Aaltonen, Sari
    Univ Helsinki, Dept Social Res, FIN-00014 Helsinki, Finland.;Univ Helsinki, Dept Publ Hlth, FIN-00014 Helsinki, Finland..
    Ji, Fuling
    Qingdao Ctr Dis Control & Prevent, Dept Noncommunicable Dis Prevent, Qingdao, Peoples R China..
    Ning, Feng
    Qingdao Ctr Dis Control & Prevent, Dept Noncommunicable Dis Prevent, Qingdao, Peoples R China..
    Pang, Zengchang
    Qingdao Ctr Dis Control & Prevent, Dept Noncommunicable Dis Prevent, Qingdao, Peoples R China..
    Ordonana, Juan R.
    Univ Murcia, Dept Human Anat & Psychobiol, Murcia, Spain.;IMIB Arrixaca, Murcia, Spain..
    Sanchez-Romera, Juan F.
    IMIB Arrixaca, Murcia, Spain.;Univ Murcia, Dept Dev & Educ Psychol, Murcia, Spain..
    Colodro-Conde, Lucia
    Univ Murcia, Dept Human Anat & Psychobiol, Murcia, Spain.;QIMR Berghofer Med Res Inst, Brisbane, Qld, Australia..
    Burt, S. Alexandra
    Michigan State Univ, E Lansing, MI 48824 USA..
    Klump, Kelly L.
    Michigan State Univ, E Lansing, MI 48824 USA..
    Medland, Sarah E.
    QIMR Berghofer Med Res Inst, Brisbane, Qld, Australia..
    Montgomery, Grant W.
    QIMR Berghofer Med Res Inst, Brisbane, Qld, Australia..
    Kandler, Christian
    Univ Bielefeld, Dept Psychol, D-33615 Bielefeld, Germany..
    McAdams, Tom A.
    Kings Coll London, Inst Psychiat Psychol & Neurosci, MRC Social Genet & Dev Psychiat Ctr, London WC2R 2LS, England..
    Eley, Thalia C.
    Kings Coll London, Inst Psychiat Psychol & Neurosci, MRC Social Genet & Dev Psychiat Ctr, London WC2R 2LS, England..
    Gregory, Alice M.
    Univ London, Dept Psychol, London, England..
    Saudino, Kimberly J.
    Boston Univ, Dept Psychol & Brain Sci, Boston, MA 02215 USA..
    Dubois, Lise
    Univ Ottawa, Sch Epidemiol Publ Hlth & Prevent Med, Ottawa, ON, Canada..
    Boivin, Michel
    Univ Laval, Ecole Psychol, Quebec City, PQ, Canada.;Tomsk State Univ, Inst of Genet Neurobiol & Social Fdn Child Dev, Tomsk 634050, Russia..
    Tarnoki, Adam D.
    Semmelweis Univ, Dept Radiol & Oncotherapy, H-1085 Budapest, Hungary..
    Tarnoki, David L.
    Semmelweis Univ, Dept Radiol & Oncotherapy, H-1085 Budapest, Hungary..
    Haworth, Claire M. A.
    Univ Bristol, MRC Integrat Epidemiol Unit, Bristol, Avon, England..
    Plomin, Robert
    Kings Coll London, Inst Psychiat Psychol & Neurosci, MRC Social Genet & Dev Psychiat Ctr, London WC2R 2LS, England..
    Oncel, Sevgi Y.
    Kirikkale Univ, Fac Arts & Sci, Dept Stat, Kirikkale, Turkey..
    Aliev, Fazil
    Virginia Commonwealth Univ, Virginia Inst Psychiat & Behav Genet, Dept Psychiat, Richmond, VA USA.;Virginia Commonwealth Univ, Virginia Inst Psychiat & Behav Genet, Dept Psychol, Richmond, VA USA.;Virginia Commonwealth Univ, Virginia Inst Psychiat & Behav Genet, Dept Human & Mol Genet, Richmond, VA USA.;Karabuk Univ, Dept Actuaria & Risk Management, Karabuk, Turkey..
    Stazi, Maria A.
    Natl Ctr Epidemiol Surveillance & Hlth Promot, Ist Super Sanita, Rome, Italy..
    Fagnani, Corrado
    Natl Ctr Epidemiol Surveillance & Hlth Promot, Ist Super Sanita, Rome, Italy..
    D'Ippolito, Cristina
    Natl Ctr Epidemiol Surveillance & Hlth Promot, Ist Super Sanita, Rome, Italy..
    Craig, Jeffrey M.
    Royal Childrens Hosp, Murdoch Childerens Res Inst, Melbourne, Vic, Australia.;Univ Melbourne, Dept Paediat, Melbourne, Vic, Australia..
    Saffery, Richard
    Royal Childrens Hosp, Murdoch Childerens Res Inst, Melbourne, Vic, Australia.;Univ Melbourne, Dept Paediat, Melbourne, Vic, Australia..
    Siribaddana, Sisira H.
    Inst Res & Dev, Battaramulla, Sri Lanka.;Rajarata Univ Sri Lanka, Fac Med & Allied Sci, Saliyapura, Sri Lanka..
    Hotopf, Matthew
    South London & Maudsley NHS Fdn Trust, NIHR Mental Hlth Biomed Res Ctr, London, England.;Kings Coll London, Inst Psychiat Psychol & Neurosci, London WC2R 2LS, England..
    Sumathipala, Athula
    Inst Res & Dev, Battaramulla, Sri Lanka.;Keele Univ, Fac Hlth, Sch Primary Care Res, Res Inst Primary Care & Hlth Sci, Keele, Staffs, England..
    Rijsdijk, Fruhling
    Kings Coll London, Inst Psychiat Psychol & Neurosci, MRC Social Genet & Dev Psychiat Ctr, London WC2R 2LS, England..
    Spector, Timothy
    Kings Coll London, Dept Twin Res & Genet Epidemiol, London WC2R 2LS, England..
    Mangino, Massimo
    Kings Coll London, Dept Twin Res & Genet Epidemiol, London WC2R 2LS, England..
    Lachance, Genevieve
    Kings Coll London, Dept Twin Res & Genet Epidemiol, London WC2R 2LS, England..
    Gatz, Margaret
    Univ So Calif, Dept Psychol, Los Angeles, CA 90089 USA.;Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden..
    Butler, David A.
    Natl Acad Sci, Inst Med, Washington, DC 20418 USA..
    Bayasgalan, Gombojav
    Hlth Twin Assoc Mongolia, Ulaanbaatar, Mongol Peo Rep..
    Narandalai, Danshiitsoodol
    Hlth Twin Assoc Mongolia, Ulaanbaatar, Mongol Peo Rep.;Hiroshima Univ, Grad Sch Biomed & Hlth Sci, Hiroshima, Japan..
    Freitas, Duarte L.
    Univ Madeira, Dept Phys Educ & Sport, Funchal, Portugal..
    Maia, Jose Antonio
    Univ Porto, Fac Sport, CIFI2D, P-4100 Oporto, Portugal..
    Harden, K. Paige
    Univ Texas Austin, Dept Psychol, Austin, TX 78712 USA..
    Tucker-Drob, Elliot M.
    Univ Texas Austin, Dept Psychol, Austin, TX 78712 USA..
    Kim, Bia
    Pusan Natl Univ, Dept Psychol, Busan, South Korea..
    Chong, Youngsook
    Hong, Changhee
    Pusan Natl Univ, Dept Psychol, Busan, South Korea..
    Shin, Hyun Jung
    Pusan Natl Univ, Dept Psychol, Busan, South Korea..
    Christensen, Kaare
    Univ Southern Denmark, Inst Publ Hlth Epidemiol Biostat & Biodemog, Danish Twin Registry, Odense, Denmark.;Odense Univ Hosp, Dept Biochem & Clin Pharmacol, DK-5000 Odense, Denmark.;Odense Univ Hosp, Dept Clin Genet, DK-5000 Odense, Denmark..
    Skytthe, Axel
    Univ Southern Denmark, Inst Publ Hlth Epidemiol Biostat & Biodemog, Danish Twin Registry, Odense, Denmark..
    Kyvik, Kirsten O.
    Univ Southern Denmark, Dept Clin Res, Odense, Denmark.;Odense Univ Hosp, Odense Patient Data Explorat Network OPEN, DK-5000 Odense, Denmark..
    Derom, Catherine A.
    Univ Hosp Leuven, Ctr Human Genet, Leuven, Belgium..
    Vlietinck, Robert F.
    Univ Hosp Leuven, Ctr Human Genet, Leuven, Belgium..
    Loos, Ruth J. F.
    Icahn Sch Med Mt Sinai, Mindich Child Hlth & Dev Inst, Charles Bronfman Inst Personalized Med, New York, NY 10029 USA..
    Cozen, Wendy
    Univ So Calif, Keck Sch Med, Dept Prevent Med, Los Angeles, CA 90033 USA.;Univ So Calif, Kenneth Norris Jr Comprehens Canc Ctr, Los Angeles, CA 90033 USA..
    Hwang, Amie E.
    Univ So Calif, Keck Sch Med, Dept Prevent Med, Los Angeles, CA 90033 USA..
    Mack, Thomas M.
    Univ So Calif, Keck Sch Med, Dept Prevent Med, Los Angeles, CA 90033 USA.;Univ So Calif, Kenneth Norris Jr Comprehens Canc Ctr, Los Angeles, CA 90033 USA..
    He, Mingguang
    Sun Yat Sen Univ, State Key Lab Ophthalmol, Zhongshan Ophthalm Ctr, Guangzhou 510275, Guangdong, Peoples R China.;Univ Melbourne, Ctr Eye Res Australia, Melbourne, Vic, Australia..
    Ding, Xiaohu
    Sun Yat Sen Univ, State Key Lab Ophthalmol, Zhongshan Ophthalm Ctr, Guangzhou 510275, Guangdong, Peoples R China..
    Chang, Billy
    Sun Yat Sen Univ, State Key Lab Ophthalmol, Zhongshan Ophthalm Ctr, Guangzhou 510275, Guangdong, Peoples R China..
    Silberg, Judy L.
    Virginia Commonwealth Univ, Virginia Inst Psychiat & Behav Genet, Dept Human & Mol Genet, Richmond, VA USA..
    Eaves, Lindon J.
    Virginia Commonwealth Univ, Virginia Inst Psychiat & Behav Genet, Dept Human & Mol Genet, Richmond, VA USA..
    Maes, Hermine H.
    Virginia Commonwealth Univ, Psychiat & Massey Canc Ctr, Dept Human & Mol Genet, Richmond, VA USA..
    Cutler, Tessa L.
    Univ Melbourne, Ctr Biostat & Epidemiol, Australian Twin Registry, Melbourne, Vic, Australia..
    Hopper, John L.
    Univ Melbourne, Ctr Biostat & Epidemiol, Australian Twin Registry, Melbourne, Vic, Australia.;Seoul Natl Univ, Sch Publ Hlth, Dept Epidemiol, Seoul, South Korea..
    Aujard, Kelly
    Univ Melbourne, Ctr Biostat & Epidemiol, Melbourne, Vic, Australia..
    Magnusson, Patrik K. E.
    Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden..
    Pedersen, Nancy L.
    Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden..
    Aslan, Anna K. Dahl
    Jönköping University, School of Health and Welfare, HHJ, Institute of Gerontology. Jönköping University, School of Health and Welfare, HHJ. Ageing - living conditions and health.
    Song, Yun-Mi
    Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Family Med, Seoul, South Korea..
    Yang, Sarah
    Seoul Natl Univ, Sch Publ Hlth, Dept Epidemiol, Seoul, South Korea.;Seoul Natl Univ, Inst Hlth & Environm, Seoul, South Korea..
    Lee, Kayoung
    Inje Univ, Coll Med, Busan Paik Hosp, Dept Family Med, Busan, South Korea..
    Baker, Laura A.
    Univ So Calif, Dept Psychol, Los Angeles, CA 90089 USA..
    Tuvblad, Catherine
    Univ So Calif, Dept Psychol, Los Angeles, CA 90089 USA.;Univ Orebro, Sch Law Psychol & Social Work, SE-70182 Orebro, Sweden..
    Bjerregaard-Andersen, Morten
    INDEPTH Network, Bandim Hlth Project, Bissau, Guinea Bissau.;Statens Serum Inst, Res Ctr Vitamines & Vaccines, DK-2300 Copenhagen, Denmark.;Odense Univ Hosp, Dept Endocrinol, DK-5000 Odense, Denmark..
    Beck-Nielsen, Henning
    Odense Univ Hosp, Dept Endocrinol, DK-5000 Odense, Denmark..
    Sodemann, Morten
    Odense Univ Hosp, Dept Infect Dis, DK-5000 Odense, Denmark..
    Heikkila, Kauko
    Univ Helsinki, Dept Publ Hlth, FIN-00014 Helsinki, Finland..
    Tan, Qihua
    Univ Southern Denmark, Inst Publ Hlth, Epidemiol Biostat & Biodemog, Odense, Denmark..
    Zhang, Dongfeng
    Qingdao Univ, Coll Med, Dept Publ Hlth, Qingdao 266071, Peoples R China..
    Swan, Gary E.
    Stanford Univ, Dept Med, Sch Med, Stanford Prevent Res Ctr, Stanford, CA 94305 USA..
    Krasnow, Ruth
    SRI Int, Ctr Hlth Sci, Menlo Pk, CA 94025 USA..
    Jang, Kerry L.
    Univ British Columbia, Dept Psychiat, Vancouver, BC, Canada..
    Knafo-Noam, Ariel
    Hebrew Univ Jerusalem, Jerusalem, Israel..
    Mankuta, David
    Hebrew Univ Jerusalem, Sch Med, Hadassah Hosp, Dept Obstet & Gynecol, IL-91010 Jerusalem, Israel..
    Abramson, Lior
    Hebrew Univ Jerusalem, Jerusalem, Israel..
    Lichtenstein, Paul
    Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden..
    Krueger, Robert F.
    Univ Minnesota, Dept Psychol, Minneapolis, MN 55455 USA..
    McGue, Matt
    Univ Minnesota, Dept Psychol, Minneapolis, MN 55455 USA..
    Pahlen, Shandell
    Univ Minnesota, Dept Psychol, Minneapolis, MN 55455 USA..
    Tynelius, Per
    Karolinska Inst, Dept Publ Hlth Sci, Stockholm, Sweden..
    Duncan, Glen E.
    Univ Washington, Ctr Clin & Epidemiol Res, Seattle, WA 98195 USA..
    Buchwald, Dedra
    Univ Washington, Ctr Clin & Epidemiol Res, Seattle, WA 98195 USA..
    Corley, Robin P.
    Univ Colorado, Inst Behav Genet, Boulder, CO 80309 USA..
    Huibregtse, Brooke M.
    Univ Colorado, Inst Behav Genet, Boulder, CO 80309 USA..
    Nelson, Tracy L.
    Colorado State Univ, Dept Hlth & Exercise Sci, Ft Collins, CO 80523 USA.;Colorado State Univ, Colorado Sch Publ Hlth, Ft Collins, CO 80523 USA..
    Whitfield, Keith E.
    Duke Univ, Psychol & Neurosci, Durham, NC USA..
    Franz, Carol E.
    Univ Calif San Diego, Dept Psychiat, San Diego, CA 92103 USA..
    Kremen, William S.
    Univ Calif San Diego, Dept Psychiat, San Diego, CA 92103 USA.;VA San Diego Ctr Excellence Stress & Mental Hlth, La Jolla, CA USA..
    Lyons, Michael J.
    Boston Univ, Dept Psychol, Boston, MA 02215 USA..
    Ooki, Syuichi
    Ishikawa Prefectural Nursing Univ, Dept Hlth Sci, Kahoku, Ishikawa, Japan..
    Brandt, Ingunn
    Norwegian Inst Publ Hlth, Div Epidemiol, Dept Genes & Environm, Oslo, Norway..
    Nilsen, Thomas Sevenius
    Norwegian Inst Publ Hlth, Div Epidemiol, Dept Genes & Environm, Oslo, Norway..
    Inui, Fujio
    Osaka Univ, Osaka Univ Grad Sch Med, Osaka, Japan.;Kio Univ, Fac Hlth Sci, Nara, Japan..
    Watanabe, Mikio
    Osaka Univ, Osaka Univ Grad Sch Med, Osaka, Japan..
    Bartels, Meike
    Vrije Univ Amsterdam, Dept Biol Psychol, Amsterdam, Netherlands..
    van Beijsterveldt, Toos C. E. M.
    Vrije Univ Amsterdam, Dept Biol Psychol, Amsterdam, Netherlands..
    Wardle, Jane
    UCL, Inst Epidemiol & Hlth Care, Hlth Behav Res Ctr, Dept Epidemiol & Publ Hlth, London, England..
    Llewellyn, Clare H.
    UCL, Inst Epidemiol & Hlth Care, Hlth Behav Res Ctr, Dept Epidemiol & Publ Hlth, London, England..
    Fisher, Abigail
    UCL, Inst Epidemiol & Hlth Care, Hlth Behav Res Ctr, Dept Epidemiol & Publ Hlth, London, England..
    Rebato, Esther
    Univ Basque Country UPV EHU, Dept Genet Phys Anthropol & Anim Physiol, Leioa, Spain..
    Martin, Nicholas G.
    QIMR Berghofer Med Res Inst, Brisbane, Qld, Australia..
    Iwatani, Yoshinori
    Osaka Univ, Osaka Univ Grad Sch Med, Osaka, Japan..
    Hayakawa, Kazuo
    Osaka Univ, Osaka Univ Grad Sch Med, Osaka, Japan..
    Sung, Joohon
    Seoul Natl Univ, Sch Publ Hlth, Dept Epidemiol, Seoul, South Korea.;Seoul Natl Univ, Inst Hlth & Environm, Seoul, South Korea..
    Harris, Jennifer R.
    Norwegian Inst Publ Hlth, Div Epidemiol, Dept Genes & Environm, Oslo, Norway..
    Willemsen, Gonneke
    Vrije Univ Amsterdam, Dept Biol Psychol, Amsterdam, Netherlands..
    Busjahn, Andreas
    HealthTwist GmbH, Berlin, Germany..
    Goldberg, Jack H.
    Univ Washington, Sch Publ Hlth, Dept Epidemiol, Seattle, WA 98195 USA..
    Rasmussen, Finn
    Karolinska Inst, Dept Publ Hlth Sci, Stockholm, Sweden..
    Hur, Yoon-Mi
    Mokpo Natl Univ, Dept Educ, Jeonnam, South Korea..
    Boomsma, Dorret I.
    Vrije Univ Amsterdam, Dept Biol Psychol, Amsterdam, Netherlands..
    Sorensen, Thorkild I. A.
    Univ Bristol, MRC Integrat Epidemiol Unit, Bristol, Avon, England.;Univ Copenhagen, Fac Med & Hlth Sci, Novo Nordisk Fdn, Ctr Basic Metab Res,Sect Metab Genet, Copenhagen, Denmark.;Bispebjerg and Frederiksberg Hosp, Inst Prevent Med, Copenhagen, Denmark..
    Kaprio, Jaakko
    Univ Helsinki, Dept Publ Hlth, FIN-00014 Helsinki, Finland.;Natl Inst Hlth & Welfare, Helsinki, Finland.;FIMM, Inst Mol Med, Helsinki, Finland..
    Silventoinen, Karri
    Univ Helsinki, Dept Social Res, FIN-00014 Helsinki, Finland.;Osaka Univ, Osaka Univ Grad Sch Med, Osaka, Japan..
    Zygosity Differences in Height and Body Mass Index of Twins From Infancy to Old Age: A Study of the CODATwins Project2015In: Twin Research and Human Genetics, ISSN 1832-4274, E-ISSN 1839-2628, Vol. 18, no 5, p. 557-570Article in journal (Refereed)
    Abstract [en]

    A trend toward greater body size in dizygotic (DZ) than in monozygotic (MZ) twins has been suggested by some but not all studies, and this difference may also vary by age. We analyzed zygosity differences in mean values and variances of height and body mass index (BMI) among male and female twins from infancy to old age. Data were derived from an international database of 54 twin cohorts participating in the COllaborative project of Development of Anthropometrical measures in Twins (CODATwins), and included 842,951 height and BMI measurements from twins aged 1 to 102 years. The results showed that DZ twins were consistently taller than MZ twins, with differences of up to 2.0 cm in childhood and adolescence and up to 0.9 cm in adulthood. Similarly, a greater mean BMI of up to 0.3 kg/m(2) in childhood and adolescence and up to 0.2 kg/m(2) in adulthood was observed in DZ twins, although the pattern was less consistent. DZ twins presented up to 1.7% greater height and 1.9% greater BMI than MZ twins; these percentage differences were largest in middle and late childhood and decreased with age in both sexes. The variance of height was similar in MZ and DZ twins at most ages. In contrast, the variance of BMI was significantly higher in DZ than in MZ twins, particularly in childhood. In conclusion, DZ twins were generally taller and had greater BMI than MZ twins, but the differences decreased with age in both sexes.

  • 2.
    Pedersen, Nancy L.
    et al.
    Karolinska Institutet.
    Christensen, Kaare
    The Danish Twin Registry, University of Southern Denmark, Institute of Public Health, Epidemiology, Denmark .
    Dahl, Anna
    Jönköping University, School of Health and Welfare, HHJ. Ageing - living conditions and health. Jönköping University, School of Health and Welfare, HHJ, Institute of Gerontology.
    Finkel, Deborah
    Department of Psychology, Indiana University Southeast, New Albany, IN, USA .
    Franz, Carol E.
    Department of Psychiatry, University of California – San Diego, La Jolla, CA, USA .
    Gatz, Margaret
    Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
    Horwitz, Briana N.
    Department of Psychology, Penn State University, University Park, PA, USA.
    Johansson, Boo
    Department of Psychology, University of Gothenburg, Gothenburg, Sweden.
    Johnson, Wendy
    Department of Psychology and Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, UK .
    Kremen, William S.
    Department of Psychiatry, University of California – San Diego, La Jolla, CA, USA.
    Lyons, Michael J.
    Department of Psychology, Boston University, Boston, MA, USA.
    Malmberg, Bo
    Jönköping University, School of Health and Welfare, HHJ, Institute of Gerontology. Jönköping University, School of Health and Welfare, HHJ. Ageing - living conditions and health.
    McGue, Matt
    Department of Psychology, University of Minnesota, Minneapolis, MN, USA.
    Neiderhiser, Jenae
    Department of Psychology, Penn State University, University Park, PA, USA .
    Petersen, Inge
    The Danish Twin Registry, University of Southern Denmark, Institute of Public Health, Epidemiology, Odense C, Denmark.
    Reynolds, Chandra A.
    Department of Psychology, University of California – Riverside, Riverside, CA, USA.
    IGEMS: The Consortium on Interplay of Genes and Environment Across Multiple Studies2013In: Twin Research and Human Genetics, ISSN 1832-4274, E-ISSN 1839-2628, Vol. 16, no 1, p. 481-489Article in journal (Refereed)
    Abstract [en]

    The Interplay of Genes and Environment across Multiple Studies (IGEMS) group is a consortium of eight longitudinal twin studies established to explore the nature of social context effects and gene-environment interplay in late-life functioning. The resulting analysis of the combined data from over 17,500 participants aged 25–102 at baseline (including nearly 2,600 monogygotic and 4,300 dizygotic twin pairs and over 1,700 family members) aims to understand why early life adversity, and social factors such as isolation and loneliness, are associated with diverse outcomes including mortality, physical functioning (health, functional ability), and psychological functioning (well-being, cognition), particularly in later life.

  • 3. Reynolds, Chandra A
    et al.
    Gatz, Margret
    Berg, Stig
    Jönköping University, School of Health Science, HHJ, Institute of Gerontology. Jönköping University, School of Health Science, HHJ. Ageing - living conditions and health.
    Pedersen, Nancy L
    Genotype-environment interactions: Cognitive aging and social factors2007In: Twin Research and Human Genetics, ISSN 1832-4274, E-ISSN 1839-2628, Vol. 10, no 2, p. 241-254Article in journal (Refereed)
  • 4. Silventoinen, Karri
    et al.
    Jelenkovic, Aline
    Latvala, Antti
    Sund, Reijo
    Yokoyama, Yoshie
    Ullemar, Vilhelmina
    Almqvist, Catarina
    Derom, Catherine A.
    Vlietinck, Robert F.
    Loos, Ruth J. F.
    Kandler, Christian
    Honda, Chika
    Inui, Fujio
    Iwatani, Yoshinori
    Watanabe, Mikio
    Rebato, Esther
    Stazi, Maria A.
    Fagnani, Corrado
    Brescianini, Sonia
    Hur, Yoon-Mi
    Jeong, Hoe-Uk
    Cutler, Tessa L.
    Hopper, John L.
    Busjahn, Andreas
    Saudino, Kimberly J.
    Ji, Fuling
    Ning, Feng
    Pang, Zengchang
    Rose, Richard J.
    Koskenvuo, Markku
    Heikkilae, Kauko
    Cozen, Wendy
    Hwang, Amie E.
    Mack, Thomas M.
    Siribaddana, Sisira H.
    Hotopf, Matthew
    Sumathipala, Athula
    Rijsdijk, Fruhling
    Sung, Joohon
    Kim, Jina
    Lee, Jooyeon
    Lee, Sooji
    Nelson, Tracy L.
    Whitfield, Keith E.
    Tan, Qihua
    Zhang, Dongfeng
    Llewellyn, Clare H.
    Fisher, Abigail
    Burt, S. Alexandra
    Klump, Kelly L.
    Knafo-Noam, Ariel
    Mankuta, David
    Abramson, Lior
    Medland, Sarah E.
    Martin, Nicholas G.
    Montgomery, Grant W.
    Magnusson, Patrik K. E.
    Pedersen, Nancy L.
    Dahl Aslan, Anna K.
    Jönköping University, School of Health and Welfare, HHJ, Institute of Gerontology. Jönköping University, School of Health and Welfare, HHJ. ARN-J (Aging Research Network - Jönköping).
    Corley, Robin P.
    Huibregtse, Brooke M.
    OEncel, Sevgi Y.
    Aliev, Fazil
    Krueger, Robert F.
    Mcgue, Matt
    Pahlen, Shandell
    Willemsen, Gonneke
    Bartels, Meike
    Van Beijsterveldt, Catharina E. M.
    Silberg, Judy L.
    Eaves, Lindon J.
    Maes, Hermine H.
    Harris, Jennifer R.
    Brandt, Ingunn
    Nilsen, Thomas S.
    Rasmussen, Finn
    Tynelius, Per
    Baker, Laura A.
    Tuvblad, Catherine
    Ordonana, Juan R.
    Sanchez-Romera, Juan F.
    Colodro-Conde, Lucia
    Gatz, Margaret
    Butler, David A.
    Lichtenstein, Paul
    Goldberg, Jack H.
    Harden, K. Paige
    Tucker-Drob, Elliot M.
    Duncan, Glen E.
    Buchwald, Dedra
    Tarnoki, Adam D.
    Tarnoki, David L.
    Franz, Carol E.
    Kremen, William S.
    Lyons, Michael J.
    Maia, Jose A.
    Freitas, Duarte L.
    Turkheimer, Eric
    Sorensen, Thorkild I. A.
    Boomsma, Dorret I.
    Kaprio, Jaakko
    Education in Twins and Their Parents Across Birth Cohorts Over 100 years: An Individual-Level Pooled Analysis of 42-Twin Cohorts2017In: Twin Research and Human Genetics, ISSN 1832-4274, E-ISSN 1839-2628, Vol. 20, no 5, p. 395-405Article in journal (Refereed)
    Abstract [en]

    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.

  • 5. Silventoinen, Karri
    et al.
    Jelenkovic, Aline
    Sund, Reijo
    Honda, Chika
    Aaltonen, Sari
    Yokoyama, Yoshie
    Tarnoki, Adam D
    Tarnoki, David L
    Ning, Feng
    Ji, Fuling
    Pang, Zengchang
    Ordoñana, Juan R
    Sánchez-Romera, Juan F
    Colodro-Conde, Lucia
    Burt, S Alexandra
    Klump, Kelly L
    Medland, Sarah E
    Montgomery, Grant W
    Kandler, Christian
    McAdams, Tom A
    Eley, Thalia C
    Gregory, Alice M
    Saudino, Kimberly J
    Dubois, Lise
    Boivin, Michel
    Haworth, Claire M A
    Plomin, Robert
    Öncel, Sevgi Y
    Aliev, Fazil
    Stazi, Maria A
    Fagnani, Corrado
    D'Ippolito, Cristina
    Craig, Jeffrey M
    Saffery, Richard
    Siribaddana, Sisira H
    Hotopf, Matthew
    Sumathipala, Athula
    Spector, Timothy
    Mangino, Massimo
    Lachance, Genevieve
    Gatz, Margaret
    Butler, David A
    Bayasgalan, Gombojav
    Narandalai, Danshiitsoodol
    Freitas, Duarte L
    Maia, José Antonio
    Harden, K Paige
    Tucker-Drob, Elliot M
    Christensen, Kaare
    Skytthe, Axel
    Kyvik, Kirsten O
    Hong, Changhee
    Chong, Youngsook
    Derom, Catherine A
    Vlietinck, Robert F
    Loos, Ruth J F
    Cozen, Wendy
    Hwang, Amie E
    Mack, Thomas M
    He, Mingguang
    Ding, Xiaohu
    Chang, Billy
    Silberg, Judy L
    Eaves, Lindon J
    Maes, Hermine H
    Cutler, Tessa L
    Hopper, John L
    Aujard, Kelly
    Magnusson, Patrik K E
    Pedersen, Nancy L
    Dahl Aslan, Anna K
    Jönköping University, School of Health and Welfare, HHJ. Ageing - living conditions and health. Jönköping University, School of Health and Welfare, HHJ, Institute of Gerontology.
    Song, Yun-Mi
    Yang, Sarah
    Lee, Kayoung
    Baker, Laura A
    Tuvblad, Catherine
    Bjerregaard-Andersen, Morten
    Beck-Nielsen, Henning
    Sodemann, Morten
    Heikkilä, Kauko
    Tan, Qihua
    Zhang, Dongfeng
    Swan, Gary E
    Krasnow, Ruth
    Jang, Kerry L
    Knafo-Noam, Ariel
    Mankuta, David
    Abramson, Lior
    Lichtenstein, Paul
    Krueger, Robert F
    McGue, Matt
    Pahlen, Shandell
    Tynelius, Per
    Duncan, Glen E
    Buchwald, Dedra
    Corley, Robin P
    Huibregtse, Brooke M
    Nelson, Tracy L
    Whitfield, Keith E
    Franz, Carol E
    Kremen, William S
    Lyons, Michael J
    Ooki, Syuichi
    Brandt, Ingunn
    Nilsen, Thomas Sevenius
    Inui, Fujio
    Watanabe, Mikio
    Bartels, Meike
    van Beijsterveldt, Toos C E M
    Wardle, Jane
    Llewellyn, Clare H
    Fisher, Abigail
    Rebato, Esther
    Martin, Nicholas G
    Iwatani, Yoshinori
    Hayakawa, Kazuo
    Rasmussen, Finn
    Sung, Joohon
    Harris, Jennifer R
    Willemsen, Gonneke
    Busjahn, Andreas
    Goldberg, Jack H
    Boomsma, Dorret I
    Hur, Yoon-Mi
    Sørensen, Thorkild I A
    Kaprio, Jaakko
    The CODATwins Project: The Cohort Description of Collaborative Project of Development of Anthropometrical Measures in Twins to Study Macro-Environmental Variation in Genetic and Environmental Effects on Anthropometric Traits2015In: Twin Research and Human Genetics, ISSN 1832-4274, E-ISSN 1839-2628, Vol. 18, no 4Article in journal (Refereed)
    Abstract [en]

    For over 100 years, the genetics of human anthropometric traits has attracted scientific interest. In particular, height and body mass index (BMI, calculated as kg/m2) have been under intensive genetic research. However, it is still largely unknown whether and how heritability estimates vary between human populations. Opportunities to address this question have increased recently because of the establishment of many new twin cohorts and the increasing accumulation of data in established twin cohorts. We started a new research project to analyze systematically (1) the variation of heritability estimates of height, BMI and their trajectories over the life course between birth cohorts, ethnicities and countries, and (2) to study the effects of birth-related factors, education and smoking on these anthropometric traits and whether these effects vary between twin cohorts. We identified 67 twin projects, including both monozygotic (MZ) and dizygotic (DZ) twins, using various sources. We asked for individual level data on height and weight including repeated measurements, birth related traits, background variables, education and smoking. By the end of 2014, 48 projects participated. Together, we have 893,458 height and weight measures (52% females) from 434,723 twin individuals, including 201,192 complete twin pairs (40% monozygotic, 40% same-sex dizygotic and 20% opposite-sex dizygotic) representing 22 countries. This project demonstrates that large-scale international twin studies are feasible and can promote the use of existing data for novel research purposes.

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