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4. Smoking remains associated with education after controlling for social background and genetic factors in a study of 18 twin cohorts

Author

Silventoinen, K, Piirtola, M, Jelenkovic, A, Sund, R, Tarnoki, AD, Tarnoki, DL, Medda, E, Nistico, L, Toccaceli, V, Honda, C, Inui, F, Tomizawa, R, Watanabe, M, Sakai, N, Gatz, M, Butler, DA, Lee, J, Lee, SJ, Sung, J, Franz, CE, Kremen, WS, Lyons, MJ, Derom, CA, Vlietinck, RF, Loos, RJF, Tynelius, P, Rasmussen, F, Martin, NG, Medland, SE, Montgomery, GW, Brandt, I, Nilsen, TS, Harris, JR, Tyler, J, Hopper, JL, Magnusson, PKE, Pedersen, NL, Aslan, AKD, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Rebato, E, Zhang, D, Pang, Z, Tan, Q, Silberg, JL, Maes, HH, Boomsma, D, Sorensen, TIA, Korhonen, T, Kaprio, J, Silventoinen, K, Piirtola, M, Jelenkovic, A, Sund, R, Tarnoki, AD, Tarnoki, DL, Medda, E, Nistico, L, Toccaceli, V, Honda, C, Inui, F, Tomizawa, R, Watanabe, M, Sakai, N, Gatz, M, Butler, DA, Lee, J, Lee, SJ, Sung, J, Franz, CE, Kremen, WS, Lyons, MJ, Derom, CA, Vlietinck, RF, Loos, RJF, Tynelius, P, Rasmussen, F, Martin, NG, Medland, SE, Montgomery, GW, Brandt, I, Nilsen, TS, Harris, JR, Tyler, J, Hopper, JL, Magnusson, PKE, Pedersen, NL, Aslan, AKD, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Rebato, E, Zhang, D, Pang, Z, Tan, Q, Silberg, JL, Maes, HH, Boomsma, D, Sorensen, TIA, Korhonen, T, and Kaprio, J

Abstract

We tested the causality between education and smoking using the natural experiment of discordant twin pairs allowing to optimally control for background genetic and childhood social factors. Data from 18 cohorts including 10,527 monozygotic (MZ) and same-sex dizygotic (DZ) twin pairs discordant for education and smoking were analyzed by linear fixed effects regression models. Within twin pairs, education levels were lower among the currently smoking than among the never smoking co-twins and this education difference was larger within DZ than MZ pairs. Similarly, education levels were higher among former smoking than among currently smoking co-twins, and this difference was larger within DZ pairs. Our results support the hypothesis of a causal effect of education on both current smoking status and smoking cessation. However, the even greater intra-pair differences within DZ pairs, who share only 50% of their segregating genes, provide evidence that shared genetic factors also contribute to these associations.

Published
2022

7. Educational attainment of same-sex and opposite-sex dizygotic twins : An individual-level pooled study of 19 twin cohorts

Author

Silventoinen, K., Bogl, L. H., Jelenkovic, A., Vuoksimaa, E., Latvala, A., Li, W., Tan, Q., Zhang, D., Pang, Z., Ordoñana, J. R., Sánchez-Romera, J. F., Colodro-Conde, L., Willemsen, G., Bartels, M., van Beijsterveldt, C. E. M., Rebato, E., Corley, R. P., Huibregtse, B. M., Hopper, J. L., Tyler, J., Duncan, G. E., Buchwald, D., Silberg, J. L., Maes, H. H., Kandler, C., Cozen, W., Hwang, A. E., Mack, T. M., Nelson, T. L., Whitfield, K. E., Medda, E., Nisticò, L., Toccaceli, V., Krueger, R. F., McGue, M., Pahlen, S., Martin, N. G., Medland, S. E., Montgomery, G. W., Heikkilä, K., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Magnusson, P. K. E., Pedersen, N. L., Dahl Aslan, Anna K., Hotopf, M., Sumathipala, A., Rijsdijk, F., Siribaddana, S. H., Rose, R. J., Sørensen, T. I. A., Boomsma, D. I., Kaprio, J., Silventoinen, K., Bogl, L. H., Jelenkovic, A., Vuoksimaa, E., Latvala, A., Li, W., Tan, Q., Zhang, D., Pang, Z., Ordoñana, J. R., Sánchez-Romera, J. F., Colodro-Conde, L., Willemsen, G., Bartels, M., van Beijsterveldt, C. E. M., Rebato, E., Corley, R. P., Huibregtse, B. M., Hopper, J. L., Tyler, J., Duncan, G. E., Buchwald, D., Silberg, J. L., Maes, H. H., Kandler, C., Cozen, W., Hwang, A. E., Mack, T. M., Nelson, T. L., Whitfield, K. E., Medda, E., Nisticò, L., Toccaceli, V., Krueger, R. F., McGue, M., Pahlen, S., Martin, N. G., Medland, S. E., Montgomery, G. W., Heikkilä, K., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Magnusson, P. K. E., Pedersen, N. L., Dahl Aslan, Anna K., Hotopf, M., Sumathipala, A., Rijsdijk, F., Siribaddana, S. H., Rose, R. J., Sørensen, T. I. A., Boomsma, D. I., and Kaprio, J.

Published
2021
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11. Nutritional status by socioeconomic level in an urban sample from Bilbao (Basque Country)

Author

Rebato, E., Rosique, J., Vinagre, A., Salces, I., and San Martin, L.

Subjects
Bilbao, Spain -- Food and nutrition, Basques -- Food and nutrition, Nutrition -- Social aspects, Social status -- Health aspects, Impedance, Bioelectric -- Research, Biological sciences
Abstract

The relationship between socioeconomic status and nutritional status has been examined in a study conducted in Bilbao, Spain. Variables included anthropometric data, bioelectrical impedance, and food intake estimates.

Published
2001

12. Genetic and environmental influences on human height from infancy through adulthood at different levels of parental education

Author

Jelenkovic, A, Sund, R, Yokoyama, Y, Latvala, A, Sugawara, M, Tanaka, M, Matsumoto, S, Freitas, DL, Maia, JA, Knafo-Noam, A, Mankuta, D, Abramson, L, Ji, F, Ning, F, Pang, Z, Rebato, E, Saudino, KJ, Cutler, TL, Hopper, JL, Ullemar, V, Almqvist, C, Magnusson, PKE, Cozen, W, Hwang, AE, Mack, TM, Nelson, TL, Whitfield, KE, Sung, J, Kim, J, Lee, J, Lee, S, Llewellyn, CH, Fisher, A, Medda, E, Nistico, L, Toccaceli, V, Baker, LA, Tuvblad, C, Corley, RP, Huibregtse, BM, Derom, CA, Vlietinck, RF, Loos, RJF, Burt, SA, Klump, KL, Silberg, JL, Maes, HH, Krueger, RF, McGue, M, Pahlen, S, Gatz, M, Butler, DA, Harris, JR, Brandt, I, Nilsen, TS, Harden, KP, Tucker-Drob, EM, Franz, CE, Kremen, WS, Lyons, MJ, Lichtenstein, P, Bartels, M, van Beijsterveldt, CEM, Willemsen, G, Oncel, SY, Aliev, F, Jeong, H-U, Hur, Y-M, Turkheimer, E, Boomsma, D, Srensen, TIA, Kaprio, J, Silventoinen, K, Jelenkovic, A, Sund, R, Yokoyama, Y, Latvala, A, Sugawara, M, Tanaka, M, Matsumoto, S, Freitas, DL, Maia, JA, Knafo-Noam, A, Mankuta, D, Abramson, L, Ji, F, Ning, F, Pang, Z, Rebato, E, Saudino, KJ, Cutler, TL, Hopper, JL, Ullemar, V, Almqvist, C, Magnusson, PKE, Cozen, W, Hwang, AE, Mack, TM, Nelson, TL, Whitfield, KE, Sung, J, Kim, J, Lee, J, Lee, S, Llewellyn, CH, Fisher, A, Medda, E, Nistico, L, Toccaceli, V, Baker, LA, Tuvblad, C, Corley, RP, Huibregtse, BM, Derom, CA, Vlietinck, RF, Loos, RJF, Burt, SA, Klump, KL, Silberg, JL, Maes, HH, Krueger, RF, McGue, M, Pahlen, S, Gatz, M, Butler, DA, Harris, JR, Brandt, I, Nilsen, TS, Harden, KP, Tucker-Drob, EM, Franz, CE, Kremen, WS, Lyons, MJ, Lichtenstein, P, Bartels, M, van Beijsterveldt, CEM, Willemsen, G, Oncel, SY, Aliev, F, Jeong, H-U, Hur, Y-M, Turkheimer, E, Boomsma, D, Srensen, TIA, Kaprio, J, and Silventoinen, K

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.

Published
2020

13. Genetic and environmental variation in educational attainment: an individual-based analysis of 28 twin cohorts

Author

Silventoinen, K, Jelenkovic, A, Sund, R, Latvala, A, Honda, C, Inui, F, Tomizawa, R, Watanabe, M, Sakai, N, Rebato, E, Busjahn, A, Tyler, J, Hopper, JL, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Calais-Ferreira, L, Oliveira, VC, Ferreira, PH, Medda, E, Nistico, L, Toccaceli, V, Derom, CA, Vlietinck, RF, Loos, RJF, Siribaddana, SH, Hotopf, M, Sumathipala, A, Rijsdijk, F, Duncan, GE, Buchwald, D, Tynelius, P, Rasmussen, F, Tan, Q, Zhang, D, Pang, Z, Magnusson, PKE, Pedersen, NL, Aslan, AKD, Hwang, AE, Mack, TM, Krueger, RF, McGue, M, Pahlen, S, Brandt, I, Nilsen, TS, Harris, JR, Martin, NG, Medland, SE, Montgomery, GW, Willemsen, G, Bartels, M, van Beijsterveldt, CEM, Franz, CE, Kremen, WS, Lyons, MJ, Silberg, JL, Maes, HH, Kandler, C, Nelson, TL, Whitfield, KE, Corley, RP, Huibregtse, BM, Gatz, M, Butler, DA, Tarnoki, AD, Tarnoki, DL, Park, HA, Lee, J, Lee, SJ, Sung, J, Yokoyama, Y, Sorensen, TIA, Boomsma, D, Kaprio, J, Silventoinen, K, Jelenkovic, A, Sund, R, Latvala, A, Honda, C, Inui, F, Tomizawa, R, Watanabe, M, Sakai, N, Rebato, E, Busjahn, A, Tyler, J, Hopper, JL, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Calais-Ferreira, L, Oliveira, VC, Ferreira, PH, Medda, E, Nistico, L, Toccaceli, V, Derom, CA, Vlietinck, RF, Loos, RJF, Siribaddana, SH, Hotopf, M, Sumathipala, A, Rijsdijk, F, Duncan, GE, Buchwald, D, Tynelius, P, Rasmussen, F, Tan, Q, Zhang, D, Pang, Z, Magnusson, PKE, Pedersen, NL, Aslan, AKD, Hwang, AE, Mack, TM, Krueger, RF, McGue, M, Pahlen, S, Brandt, I, Nilsen, TS, Harris, JR, Martin, NG, Medland, SE, Montgomery, GW, Willemsen, G, Bartels, M, van Beijsterveldt, CEM, Franz, CE, Kremen, WS, Lyons, MJ, Silberg, JL, Maes, HH, Kandler, C, Nelson, TL, Whitfield, KE, Corley, RP, Huibregtse, BM, Gatz, M, Butler, DA, Tarnoki, AD, Tarnoki, DL, Park, HA, Lee, J, Lee, SJ, Sung, J, Yokoyama, Y, Sorensen, TIA, Boomsma, D, and Kaprio, J

Abstract

We investigated the heritability of educational attainment and how it differed between birth cohorts and cultural-geographic regions. A classical twin design was applied to pooled data from 28 cohorts representing 16 countries and including 193,518 twins with information on educational attainment at 25 years of age or older. Genetic factors explained the major part of individual differences in educational attainment (heritability: a2 = 0.43; 0.41-0.44), but also environmental variation shared by co-twins was substantial (c2 = 0.31; 0.30-0.33). The proportions of educational variation explained by genetic and shared environmental factors did not differ between Europe, North America and Australia, and East Asia. When restricted to twins 30 years or older to confirm finalized education, the heritability was higher in the older cohorts born in 1900-1949 (a2 = 0.44; 0.41-0.46) than in the later cohorts born in 1950-1989 (a2 = 0.38; 0.36-0.40), with a corresponding lower influence of common environmental factors (c2 = 0.31; 0.29-0.33 and c2 = 0.34; 0.32-0.36, respectively). In conclusion, both genetic and environmental factors shared by co-twins have an important influence on individual differences in educational attainment. The effect of genetic factors on educational attainment has decreased from the cohorts born before to those born after the 1950s.

Published
2020

14. Genetic and environmental variation in educational attainment : an individual-based analysis of 28 twin cohorts

Author

Silventoinen, K., Jelenkovic, A., Sund, R., Latvala, A., Honda, C., Inui, F., Tomizawa, R., Watanabe, M., Sakai, N., Rebato, E., Busjahn, A., Tyler, J., Hopper, J. L., Ordoñana, J. R., Sánchez-Romera, J. F., Colodro-Conde, L., Calais-Ferreira, L., Oliveira, V. C., Ferreira, P. H., Medda, E., Nisticò, L., Toccaceli, V., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Rijsdijk, F., Duncan, G. E., Buchwald, D., Tynelius, P., Rasmussen, F., Tan, Q., Zhang, D., Pang, Z., Magnusson, P. K. E., Pedersen, N. L., Dahl Aslan, Anna K., Hwang, A. E., Mack, T. M., Krueger, R. F., McGue, M., Pahlen, S., Brandt, I., Nilsen, T. S., Harris, J. R., Martin, N. G., Medland, S. E., Montgomery, G. W., Willemsen, G., Bartels, M., van Beijsterveldt, C. E. M., Franz, C. E., Kremen, W. S., Lyons, M. J., Silberg, J. L., Maes, H. H., Kandler, C., Nelson, T. L., Whitfield, K. E., Corley, R. P., Huibregtse, B. M., Gatz, M., Butler, D. A., Tarnoki, A. D., Tarnoki, D. L., Park, H. A., Lee, J., Lee, S. J., Sung, J., Yokoyama, Y., Sørensen, T. I. A., Boomsma, D. I., Kaprio, J., Silventoinen, K., Jelenkovic, A., Sund, R., Latvala, A., Honda, C., Inui, F., Tomizawa, R., Watanabe, M., Sakai, N., Rebato, E., Busjahn, A., Tyler, J., Hopper, J. L., Ordoñana, J. R., Sánchez-Romera, J. F., Colodro-Conde, L., Calais-Ferreira, L., Oliveira, V. C., Ferreira, P. H., Medda, E., Nisticò, L., Toccaceli, V., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Rijsdijk, F., Duncan, G. E., Buchwald, D., Tynelius, P., Rasmussen, F., Tan, Q., Zhang, D., Pang, Z., Magnusson, P. K. E., Pedersen, N. L., Dahl Aslan, Anna K., Hwang, A. E., Mack, T. M., Krueger, R. F., McGue, M., Pahlen, S., Brandt, I., Nilsen, T. S., Harris, J. R., Martin, N. G., Medland, S. E., Montgomery, G. W., Willemsen, G., Bartels, M., van Beijsterveldt, C. E. M., Franz, C. E., Kremen, W. S., Lyons, M. J., Silberg, J. L., Maes, H. H., Kandler, C., Nelson, T. L., Whitfield, K. E., Corley, R. P., Huibregtse, B. M., Gatz, M., Butler, D. A., Tarnoki, A. D., Tarnoki, D. L., Park, H. A., Lee, J., Lee, S. J., Sung, J., Yokoyama, Y., Sørensen, T. I. A., Boomsma, D. I., and Kaprio, J.

Abstract

We investigated the heritability of educational attainment and how it differed between birth cohorts and cultural–geographic regions. A classical twin design was applied to pooled data from 28 cohorts representing 16 countries and including 193,518 twins with information on educational attainment at 25 years of age or older. Genetic factors explained the major part of individual differences in educational attainment (heritability: a2 = 0.43; 0.41–0.44), but also environmental variation shared by co-twins was substantial (c2 = 0.31; 0.30–0.33). The proportions of educational variation explained by genetic and shared environmental factors did not differ between Europe, North America and Australia, and East Asia. When restricted to twins 30 years or older to confirm finalized education, the heritability was higher in the older cohorts born in 1900–1949 (a2 = 0.44; 0.41–0.46) than in the later cohorts born in 1950–1989 (a2 = 0.38; 0.36–0.40), with a corresponding lower influence of common environmental factors (c2 = 0.31; 0.29–0.33 and c2 = 0.34; 0.32–0.36, respectively). In conclusion, both genetic and environmental factors shared by co-twins have an important influence on individual differences in educational attainment. The effect of genetic factors on educational attainment has decreased from the cohorts born before to those born after the 1950s.

Published
2020
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18. The CODATwins Project: The Current Status and Recent Findings of COllaborative Project of Development of Anthropometrical Measures in Twins

Author

Silventoinen, K., primary, Jelenkovic, A., additional, Yokoyama, Y., additional, Sund, R., additional, Sugawara, M., additional, Tanaka, M., additional, Matsumoto, S., additional, Bogl, L. H., additional, Freitas, D. L., additional, Maia, J. A., additional, Hjelmborg, J. v. B., additional, Aaltonen, S., additional, Piirtola, M., additional, Latvala, A., additional, Calais-Ferreira, L., additional, Oliveira, V. C., additional, Ferreira, P. H., additional, Ji, F., additional, Ning, F., additional, Pang, Z., additional, Ordoñana, J. R., additional, Sánchez-Romera, J. F., additional, Colodro-Conde, L., additional, Burt, S. A., additional, Klump, K. L., additional, Martin, N. G., additional, Medland, S. E., additional, Montgomery, G. W., additional, Kandler, C., additional, McAdams, T. A., additional, Eley, T. C., additional, Gregory, A. M., additional, Saudino, K. J., additional, Dubois, L., additional, Boivin, M., additional, Brendgen, M., additional, Dionne, G., additional, Vitaro, F., additional, Tarnoki, A. D., additional, Tarnoki, D. L., additional, Haworth, C. M. A., additional, Plomin, R., additional, Öncel, S. Y., additional, Aliev, F., additional, Medda, E., additional, Nisticò, L., additional, Toccaceli, V., additional, Craig, J. M., additional, Saffery, R., additional, Siribaddana, S. H., additional, Hotopf, M., additional, Sumathipala, A., additional, Rijsdijk, F., additional, Jeong, H.-U., additional, Spector, T., additional, Mangino, M., additional, Lachance, G., additional, Gatz, M., additional, Butler, D. A., additional, Gao, W., additional, Yu, C., additional, Li, L., additional, Bayasgalan, G., additional, Narandalai, D., additional, Harden, K. P., additional, Tucker-Drob, E. M., additional, Christensen, K., additional, Skytthe, A., additional, Kyvik, K. O., additional, Derom, C. A., additional, Vlietinck, R. F., additional, Loos, R. J. F., additional, Cozen, W., additional, Hwang, A. E., additional, Mack, T. M., additional, He, M., additional, Ding, X., additional, Silberg, J. L., additional, Maes, H. H., additional, Cutler, T. L., additional, Hopper, J. L., additional, Magnusson, P. K. E., additional, Pedersen, N. L., additional, Dahl Aslan, A. K., additional, Baker, L. A., additional, Tuvblad, C., additional, Bjerregaard-Andersen, M., additional, Beck-Nielsen, H., additional, Sodemann, M., additional, Ullemar, V., additional, Almqvist, C., additional, Tan, Q., additional, Zhang, D., additional, Swan, G. E., additional, Krasnow, R., additional, Jang, K. L., additional, Knafo-Noam, A., additional, Mankuta, D., additional, Abramson, L., additional, Lichtenstein, P., additional, Krueger, R. F., additional, McGue, M., additional, Pahlen, S., additional, Tynelius, P., additional, Rasmussen, F., additional, Duncan, G. E., additional, Buchwald, D., additional, Corley, R. P., additional, Huibregtse, B. M., additional, Nelson, T. L., additional, Whitfield, K. E., additional, Franz, C. E., additional, Kremen, W. S., additional, Lyons, M. J., additional, Ooki, S., additional, Brandt, I., additional, Nilsen, T. S., additional, Harris, J. R., additional, Sung, J., additional, Park, H. A., additional, Lee, J., additional, Lee, S. J., additional, Willemsen, G., additional, Bartels, M., additional, van Beijsterveldt, C. E. M., additional, Llewellyn, C. H., additional, Fisher, A., additional, Rebato, E., additional, Busjahn, A., additional, Tomizawa, R., additional, Inui, F., additional, Watanabe, M., additional, Honda, C., additional, Sakai, N., additional, Hur, Y.-M., additional, Sørensen, T. I. A., additional, Boomsma, D. I., additional, and Kaprio, J., additional

Published
2019
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20. The CODATwins Project: The Current Status and Recent Findings of COllaborative Project of Development of Anthropometrical Measures in Twins

Author

Silventoinen, K., Jelenkovic, A., Yokoyama, Y., Sund, R., Sugawara, M., Tanaka, M., Matsumoto, S., Bogl, L. H., Freitas, D. L., Maia, J. A., Hjelmborg, J. v. B., Aaltonen, S., Piirtola, M., Latvala, A., Calais-Ferreira, L., Oliveira, V. C., Ferreira, P. H., Ji, F., Ning, F., Pang, Z., Ordonana, J. R., Sanchez-Romera, J. F., Colodro-Conde, L., Burt, S. A., Klump, K. L., Martin, N. G., Medland, S. E., Montgomery, G. W., Kandler, C., McAdams, T. A., Eley, T. C., Gregory, A. M., Saudino, K. J., Dubois, L., Boivin, M., Brendgen, M., Dionne, G., Vitaro, F., Tarnoki, A. D., Tarnoki, D. L., Haworth, C. M. A., Plomin, R., Oncel, S. Y., Aliev, F., Medda, E., Nistico, L., Toccaceli, V., Craig, J. M., Saffery, R., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Rijsdijk, F., Jeong, H. -U., Spector, T., Mangino, M., Lachance, G., Gatz, M., Butler, D. A., Gao, W., Yu, C., Li, L., Bayasgalan, G., Narandalai, D., Harden, K. P., Tucker-Drob, E. M., Christensen, K., Skytthe, A., Kyvik, K. O., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Cozen, W., Hwang, A. E., Mack, T. M., He, M., Ding, X., Silberg, J. L., Maes, H. H., Cutler, T. L., Hopper, J. L., Magnusson, P. K. E., Pedersen, N. L., Dahl Aslan, A. K., Baker, L. A., Tuvblad, C., Bjerregaard-Andersen, M., Beck-Nielsen, H., Sodemann, M., Ullemar, V., Almqvist, C., Tan, Q., Zhang, D., Swan, G. E., Krasnow, R., Jang, K. L., Knafo-Noam, A., Mankuta, D., Abramson, L., Lichtenstein, P., Krueger, R. F., McGue, M., Pahlen, S., Tynelius, P., Rasmussen, F., Duncan, G. E., Buchwald, D., Corley, R. P., Huibregtse, B. M., Nelson, T. L., Whitfield, K. E., Franz, C. E., Kremen, W. S., Lyons, M. J., Ooki, S., Brandt, I., Nilsen, T. S., Harris, J. R., Sung, J., Park, H. A., Lee, J., Lee, S. J., Willemsen, G., Bartels, M., Van Beijsterveldt, C. E. M., Llewellyn, C. H., Fisher, A., Rebato, E., Busjahn, A., Tomizawa, R., Inui, F., Watanabe, M., Honda, C., Sakai, N., Hur, Y. -M., Sørensen, T. I. A., Boomsma, D. I., Kaprio, J., Silventoinen, K., Jelenkovic, A., Yokoyama, Y., Sund, R., Sugawara, M., Tanaka, M., Matsumoto, S., Bogl, L. H., Freitas, D. L., Maia, J. A., Hjelmborg, J. v. B., Aaltonen, S., Piirtola, M., Latvala, A., Calais-Ferreira, L., Oliveira, V. C., Ferreira, P. H., Ji, F., Ning, F., Pang, Z., Ordonana, J. R., Sanchez-Romera, J. F., Colodro-Conde, L., Burt, S. A., Klump, K. L., Martin, N. G., Medland, S. E., Montgomery, G. W., Kandler, C., McAdams, T. A., Eley, T. C., Gregory, A. M., Saudino, K. J., Dubois, L., Boivin, M., Brendgen, M., Dionne, G., Vitaro, F., Tarnoki, A. D., Tarnoki, D. L., Haworth, C. M. A., Plomin, R., Oncel, S. Y., Aliev, F., Medda, E., Nistico, L., Toccaceli, V., Craig, J. M., Saffery, R., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Rijsdijk, F., Jeong, H. -U., Spector, T., Mangino, M., Lachance, G., Gatz, M., Butler, D. A., Gao, W., Yu, C., Li, L., Bayasgalan, G., Narandalai, D., Harden, K. P., Tucker-Drob, E. M., Christensen, K., Skytthe, A., Kyvik, K. O., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Cozen, W., Hwang, A. E., Mack, T. M., He, M., Ding, X., Silberg, J. L., Maes, H. H., Cutler, T. L., Hopper, J. L., Magnusson, P. K. E., Pedersen, N. L., Dahl Aslan, A. K., Baker, L. A., Tuvblad, C., Bjerregaard-Andersen, M., Beck-Nielsen, H., Sodemann, M., Ullemar, V., Almqvist, C., Tan, Q., Zhang, D., Swan, G. E., Krasnow, R., Jang, K. L., Knafo-Noam, A., Mankuta, D., Abramson, L., Lichtenstein, P., Krueger, R. F., McGue, M., Pahlen, S., Tynelius, P., Rasmussen, F., Duncan, G. E., Buchwald, D., Corley, R. P., Huibregtse, B. M., Nelson, T. L., Whitfield, K. E., Franz, C. E., Kremen, W. S., Lyons, M. J., Ooki, S., Brandt, I., Nilsen, T. S., Harris, J. R., Sung, J., Park, H. A., Lee, J., Lee, S. J., Willemsen, G., Bartels, M., Van Beijsterveldt, C. E. M., Llewellyn, C. H., Fisher, A., Rebato, E., Busjahn, A., Tomizawa, R., Inui, F., Watanabe, M., Honda, C., Sakai, N., Hur, Y. -M., Sørensen, T. I. A., Boomsma, D. I., and Kaprio, J.

Published
2019

21. The CODATwins Project: The Current Status and Recent Findings of COllaborative Project of Development of Anthropometrical Measures in Twins

Author

Silventoinen, K, Jelenkovic, A, Yokoyama, Y, Sund, R, Sugawara, M, Tanaka, M, Matsumoto, S, Bogl, L H, Freitas, D L, Maia, J A, Hjelmborg, J V B, Aaltonen, S, Piirtola, M, Latvala, A, Calais-Ferreira, L, Oliveira, V C, Ferreira, P H, Ji, F, Ning, F, Pang, Z, Ordoñana, J R, Sánchez-Romera, J F, Colodro-Conde, L, Burt, S A, Klump, K L, Martin, N G, Medland, S E, Montgomery, G W, Kandler, C, McAdams, T A, Eley, T C, Gregory, A M, Saudino, K J, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Tarnoki, A D, Tarnoki, D L, Haworth, C M A, Plomin, R, Öncel, S Y, Aliev, F, Medda, E, Nisticò, L, Toccaceli, V, Craig, J M, Saffery, R, Siribaddana, S H, Hotopf, M, Sumathipala, A, Rijsdijk, F, Jeong, H-U, Spector, T, Mangino, M, Lachance, G, Gatz, M, Butler, D A, Gao, W, Yu, C, Li, L, Bayasgalan, G, Narandalai, D, Harden, K P, Tucker-Drob, E M, Christensen, K, Skytthe, A, Kyvik, K O, Derom, C A, Vlietinck, R F, Loos, R J F, Cozen, W, Hwang, A E, Mack, T M, He, M, Ding, X, Silberg, J L, Maes, H H, Cutler, T L, Hopper, J L, Magnusson, P K E, Pedersen, N L, Dahl Aslan, A K, Baker, L A, Tuvblad, C, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Ullemar, V, Almqvist, C, Tan, Q, Zhang, D, Swan, G E, Krasnow, R, Jang, K L, Knafo-Noam, A, Mankuta, D, Abramson, L, Lichtenstein, P, Krueger, R F, McGue, M, Pahlen, S, Tynelius, P, Rasmussen, F, Duncan, G E, Buchwald, D, Corley, R P, Huibregtse, B M, Nelson, T L, Whitfield, K E, Franz, C E, Kremen, W S, Lyons, M J, Ooki, S, Brandt, I, Nilsen, T S, Harris, J R, Sung, J, Park, H A, Lee, J, Lee, S J, Willemsen, Gonneke, Bartels, Meike, van Beijsterveldt, C.E.M., Llewellyn, C H, Fisher, A, Rebato, E, Busjahn, A, Tomizawa, R, Inui, F, Watanabe, M, Honda, C, Sakai, N, Hur, Y-M, Sørensen, T I A, Boomsma, D.I., Kaprio, J, Silventoinen, K, Jelenkovic, A, Yokoyama, Y, Sund, R, Sugawara, M, Tanaka, M, Matsumoto, S, Bogl, L H, Freitas, D L, Maia, J A, Hjelmborg, J V B, Aaltonen, S, Piirtola, M, Latvala, A, Calais-Ferreira, L, Oliveira, V C, Ferreira, P H, Ji, F, Ning, F, Pang, Z, Ordoñana, J R, Sánchez-Romera, J F, Colodro-Conde, L, Burt, S A, Klump, K L, Martin, N G, Medland, S E, Montgomery, G W, Kandler, C, McAdams, T A, Eley, T C, Gregory, A M, Saudino, K J, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Tarnoki, A D, Tarnoki, D L, Haworth, C M A, Plomin, R, Öncel, S Y, Aliev, F, Medda, E, Nisticò, L, Toccaceli, V, Craig, J M, Saffery, R, Siribaddana, S H, Hotopf, M, Sumathipala, A, Rijsdijk, F, Jeong, H-U, Spector, T, Mangino, M, Lachance, G, Gatz, M, Butler, D A, Gao, W, Yu, C, Li, L, Bayasgalan, G, Narandalai, D, Harden, K P, Tucker-Drob, E M, Christensen, K, Skytthe, A, Kyvik, K O, Derom, C A, Vlietinck, R F, Loos, R J F, Cozen, W, Hwang, A E, Mack, T M, He, M, Ding, X, Silberg, J L, Maes, H H, Cutler, T L, Hopper, J L, Magnusson, P K E, Pedersen, N L, Dahl Aslan, A K, Baker, L A, Tuvblad, C, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Ullemar, V, Almqvist, C, Tan, Q, Zhang, D, Swan, G E, Krasnow, R, Jang, K L, Knafo-Noam, A, Mankuta, D, Abramson, L, Lichtenstein, P, Krueger, R F, McGue, M, Pahlen, S, Tynelius, P, Rasmussen, F, Duncan, G E, Buchwald, D, Corley, R P, Huibregtse, B M, Nelson, T L, Whitfield, K E, Franz, C E, Kremen, W S, Lyons, M J, Ooki, S, Brandt, I, Nilsen, T S, Harris, J R, Sung, J, Park, H A, Lee, J, Lee, S J, Willemsen, Gonneke, Bartels, Meike, van Beijsterveldt, C.E.M., Llewellyn, C H, Fisher, A, Rebato, E, Busjahn, A, Tomizawa, R, Inui, F, Watanabe, M, Honda, C, Sakai, N, Hur, Y-M, Sørensen, T I A, Boomsma, D.I., and Kaprio, J

Abstract

The COllaborative project of Development of Anthropometrical measures in Twins (CODATwins) project is a large international collaborative effort to analyze individual-level phenotype data from twins in multiple cohorts from different environments. The main objective is to study factors that modify genetic and environmental variation of height, body mass index (BMI, kg/m2) and size at birth, and additionally to address other research questions such as long-term consequences of birth size. The project started in 2013 and is open to all twin projects in the world having height and weight measures on twins with information on zygosity. Thus far, 54 twin projects from 24 countries have provided individual-level data. The CODATwins database includes 489,981 twin individuals (228,635 complete twin pairs). Since many twin cohorts have collected longitudinal data, there is a total of 1,049,785 height and weight observations. For many cohorts, we also have information on birth weight and length, own smoking behavior and own or parental education. We found that the heritability estimates of height and BMI systematically changed from infancy to old age. Remarkably, only minor differences in the heritability estimates were found across cultural-geographic regions, measurement time and birth cohort for height and BMI. In addition to genetic epidemiological studies, we looked at associations of height and BMI with education, birth weight and smoking status. Within-family analyses examined differences within same-sex and opposite-sex dizygotic twins in birth size and later development. The CODATwins project demonstrates the feasibility and value of international collaboration to address gene-by-exposure interactions that require large sample sizes and address the effects of different exposures across time, geographical regions and socioeconomic status.

Published
2019
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22. Parental Education and Genetics of BMI from Infancy to Old Age: A Pooled Analysis of 29 Twin Cohorts

Author

Silventoinen, K, Jelenkovic, A, Latvala, A, Yokoyama, Y, Sund, R, Sugawara, M, Tanaka, M, Matsumoto, S, Aaltonen, S, Piirtola, M, Freitas, DL, Maia, JA, Oncel, SY, Aliev, F, Ji, F, Ning, F, Pang, Z, Rebato, E, Saudino, KJ, Cutler, TL, Hopper, JL, Ullemar, V, Almqvist, C, Magnusson, PKE, Cozen, W, Hwang, AE, Mack, TM, Willemsen, G, Bartels, M, van Beijsterveldt, CEM, Nelson, TL, Whitfield, KE, Sung, J, Kim, J, Lee, J, Lee, S, Llewellyn, CH, Fisher, A, Medda, E, Nistico, L, Toccaceli, V, Baker, LA, Tuvblad, C, Corley, RP, Huibregtse, BM, Derom, CA, Vlietinck, RF, Loos, RJF, Knafo-Noam, A, Mankuta, D, Abramson, L, Burt, SA, Klump, KL, Silberg, JL, Maes, HH, Krueger, RF, McGue, M, Pahlen, S, Gatz, M, Butler, DA, Harris, JR, Nilsen, TS, Harden, KP, Tucker-Drob, EM, Franz, CE, Kremen, WS, Lyons, MJ, Lichtenstein, P, Jeong, H-U, Hur, Y-M, Boomsma, DI, Sorensen, TIA, Kaprio, J, Silventoinen, K, Jelenkovic, A, Latvala, A, Yokoyama, Y, Sund, R, Sugawara, M, Tanaka, M, Matsumoto, S, Aaltonen, S, Piirtola, M, Freitas, DL, Maia, JA, Oncel, SY, Aliev, F, Ji, F, Ning, F, Pang, Z, Rebato, E, Saudino, KJ, Cutler, TL, Hopper, JL, Ullemar, V, Almqvist, C, Magnusson, PKE, Cozen, W, Hwang, AE, Mack, TM, Willemsen, G, Bartels, M, van Beijsterveldt, CEM, Nelson, TL, Whitfield, KE, Sung, J, Kim, J, Lee, J, Lee, S, Llewellyn, CH, Fisher, A, Medda, E, Nistico, L, Toccaceli, V, Baker, LA, Tuvblad, C, Corley, RP, Huibregtse, BM, Derom, CA, Vlietinck, RF, Loos, RJF, Knafo-Noam, A, Mankuta, D, Abramson, L, Burt, SA, Klump, KL, Silberg, JL, Maes, HH, Krueger, RF, McGue, M, Pahlen, S, Gatz, M, Butler, DA, Harris, JR, Nilsen, TS, Harden, KP, Tucker-Drob, EM, Franz, CE, Kremen, WS, Lyons, MJ, Lichtenstein, P, Jeong, H-U, Hur, Y-M, Boomsma, DI, Sorensen, TIA, and Kaprio, J

Abstract

OBJECTIVE: The objective of this study was to analyze how parental education modifies the genetic and environmental variances of BMI from infancy to old age in three geographic-cultural regions. METHODS: A pooled sample of 29 cohorts including 143,499 twin individuals with information on parental education and BMI from age 1 to 79 years (299,201 BMI measures) was analyzed by genetic twin modeling. RESULTS: Until 4 years of age, parental education was not consistently associated with BMI. Thereafter, higher parental education level was associated with lower BMI in males and females. Total and additive genetic variances of BMI were smaller in the offspring of highly educated parents than in those whose parents had low education levels. Especially in North American and Australian children, environmental factors shared by co-twins also contributed to the higher BMI variation in the low education level category. In Europe and East Asia, the associations of parental education with mean BMI and BMI variance were weaker than in North America and Australia. CONCLUSIONS: Lower parental education level is associated with higher mean BMI and larger genetic variance of BMI after early childhood, especially in the obesogenic macro-environment. The interplay among genetic predisposition, childhood social environment, and macro-social context is important for socioeconomic differences in BMI.

Published
2019

23. Association of current and former smoking with body mass index : A study of smoking discordant twin pairs from 21 twin cohorts

Author

Piirtola, M., Jelenkovic, A., Latvala, A., Sund, R., Honda, C., Inui, F., Watanabe, M., Tomizawa, R., Iwatani, Y., Ordoñana, J. R., Sánchez-Romera, J. F., Colodro-Conde, L., Tarnoki, A. D., Tarnoki, D. L., Martin, N. G., Montgomery, G. W., Medland, S. E., Rasmussen, F., Tynelius, P., Tan, Q., Zhang, D., Pang, Z., Rebato, E., Stazi, M. A., Fagnani, C., Brescianini, S., Busjahn, A., Harris, J. R., Brandt, I., Nilsen, T. S., Cutler, T. L., Hopper, J. L., Corley, R. P., Huibregtse, B. M., Sung, J., Kim, J., Lee, J., Lee, S., Gatz, M., Butler, D. A., Franz, C. E., Kremen, W. S., Lyons, M. J., Magnusson, P. K. E., Pedersen, N. L., Dahl Aslan, Anna K., Öncel, S.Y., Aliev, F., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Silberg, J. L., Maes, H. H., Boomsma, D. I., Sørensen, T. I. A., Korhonen, T., Kaprio, J., Silventoinen, K., Piirtola, M., Jelenkovic, A., Latvala, A., Sund, R., Honda, C., Inui, F., Watanabe, M., Tomizawa, R., Iwatani, Y., Ordoñana, J. R., Sánchez-Romera, J. F., Colodro-Conde, L., Tarnoki, A. D., Tarnoki, D. L., Martin, N. G., Montgomery, G. W., Medland, S. E., Rasmussen, F., Tynelius, P., Tan, Q., Zhang, D., Pang, Z., Rebato, E., Stazi, M. A., Fagnani, C., Brescianini, S., Busjahn, A., Harris, J. R., Brandt, I., Nilsen, T. S., Cutler, T. L., Hopper, J. L., Corley, R. P., Huibregtse, B. M., Sung, J., Kim, J., Lee, J., Lee, S., Gatz, M., Butler, D. A., Franz, C. E., Kremen, W. S., Lyons, M. J., Magnusson, P. K. E., Pedersen, N. L., Dahl Aslan, Anna K., Öncel, S.Y., Aliev, F., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Silberg, J. L., Maes, H. H., Boomsma, D. I., Sørensen, T. I. A., Korhonen, T., Kaprio, J., and Silventoinen, K.

Abstract

Background Smokers tend to weigh less than never smokers, while successful quitting leads to an increase in body weight. Because smokers and non-smokers may differ in genetic and environmental family background, we analysed data from twin pairs in which the co-twins differed by their smoking behaviour to evaluate if the association between smoking and body mass index (BMI) remains after controlling for family background. Methods and findings The international CODATwins database includes information on smoking and BMI measured between 1960 and 2012 from 156,593 twin individuals 18–69 years of age. Individual-based data (230,378 measurements) and data of smoking discordant twin pairs (altogether 30,014 pairwise measurements, 36% from monozygotic [MZ] pairs) were analysed with linear fixed-effects regression models by 10-year periods. In MZ pairs, the smoking co-twin had, on average, 0.57 kg/m2 lower BMI in men (95% confidence interval (CI): 0.49, 0.70) and 0.65 kg/m2 lower BMI in women (95% CI: 0.52, 0.79) than the never smoking co-twin. Former smokers had 0.70 kg/m2 higher BMI among men (95% CI: 0.63, 0.78) and 0.62 kg/ m2 higher BMI among women (95% CI: 0.51, 0.73) than their currently smoking MZ co-twins. Little difference in BMI was observed when comparing former smoking co-twins with their never smoking MZ co-twins (0.13 kg/m2, 95% CI 0.04, 0.23 among men; -0.04 kg/m2, 95% CI -0.16, 0.09 among women). The associations were similar within dizygotic pairs and when analysing twins as individuals. The observed series of cross-sectional associations were independent of sex, age, and measurement decade. Conclusions Smoking is associated with lower BMI and smoking cessation with higher BMI. However, the net effect of smoking and subsequent cessation on weight development appears to be minimal, i.e. never more than an average of 0.7 kg/m2

Published
2018
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24. 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

Author

Jelenkovic, A, Yokoyama, Y, Sund, R, Hur, Y-M, Harris, JR, Brandt, I, Nilsen, TS, Ooki, S, Ullemar, V, Almqvist, C, Magnusson, PKE, Saudino, KJ, Stazi, MA, Fagnani, C, Brescianini, S, Nelson, TL, Whitfield, KE, Knafo-Noam, A, Mankuta, D, Abramson, L, Cutler, TL, Hopper, JL, Llewellyn, CH, Fisher, A, Corley, RP, Huibregtse, BM, Derom, CA, Vlietinck, RF, Bjerregaard-Andersen, M, Nielsen, HB, Sodemann, M, Krueger, RF, McGue, M, Pahlen, S, Burt, SA, Klump, KL, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Willemsen, G, Bartels, M, van Beijsterveld, CEM, Craig, JM, Saffery, R, Rasmussen, F, Tynelius, P, Heikkila, K, Pietilainen, KH, Bayasgalan, G, Narandalai, D, Haworth, CMA, Plomin, R, Ji, F, Ning, F, Pang, Z, Rebato, E, Tarnoki, AD, Tarnoki, DL, Kim, J, Lee, J, Lee, S, Sung, J, Loos, RJF, Boomsma, DI, Sorensen, TIA, Kaprio, J, Silventoinen, K, Jelenkovic, A, Yokoyama, Y, Sund, R, Hur, Y-M, Harris, JR, Brandt, I, Nilsen, TS, Ooki, S, Ullemar, V, Almqvist, C, Magnusson, PKE, Saudino, KJ, Stazi, MA, Fagnani, C, Brescianini, S, Nelson, TL, Whitfield, KE, Knafo-Noam, A, Mankuta, D, Abramson, L, Cutler, TL, Hopper, JL, Llewellyn, CH, Fisher, A, Corley, RP, Huibregtse, BM, Derom, CA, Vlietinck, RF, Bjerregaard-Andersen, M, Nielsen, HB, Sodemann, M, Krueger, RF, McGue, M, Pahlen, S, Burt, SA, Klump, KL, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Willemsen, G, Bartels, M, van Beijsterveld, CEM, Craig, JM, Saffery, R, Rasmussen, F, Tynelius, P, Heikkila, K, Pietilainen, KH, Bayasgalan, G, Narandalai, D, Haworth, CMA, Plomin, R, Ji, F, Ning, F, Pang, Z, Rebato, E, Tarnoki, AD, Tarnoki, DL, Kim, J, Lee, J, Lee, S, Sung, J, Loos, RJF, Boomsma, DI, Sorensen, TIA, Kaprio, J, and Silventoinen, K

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.

Published
2018

25. Birth size and gestational age in opposite-sex twins as compared to same-sex twins: An individual-based pooled analysis of 21 cohorts

Author

Jelenkovic, A, Sund, R, Yokoyama, Y, Hur, Y-M, Ullemar, V, Almqvist, C, Magnusson, PKE, Willemsen, G, Bartels, M, van Beijsterveldt, CEM, Bogl, LH, Pietilainen, KH, Vuoksimaa, E, Ji, F, Ning, F, Pang, Z, Nelson, TL, Whitfield, KE, Rebato, E, Llewellyn, CH, Fisher, A, Bayasgalan, G, Narandalai, D, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Tarnoki, AD, Tarnoki, DL, Ooki, S, Stazi, MA, Fagnani, C, Brescianini, S, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Cutler, TL, Hopper, JL, Krueger, RF, McGue, M, Pahlen, S, Craig, JM, Saffery, R, Haworth, CMA, Plomin, R, Knafo-Noam, A, Mankuta, D, Abramson, L, Burt, SA, Klump, KL, Vlietinck, RF, Derom, CA, Loos, RJF, Boomsma, DI, Sorensen, TIA, Kaprio, J, Silventoinen, K, Jelenkovic, A, Sund, R, Yokoyama, Y, Hur, Y-M, Ullemar, V, Almqvist, C, Magnusson, PKE, Willemsen, G, Bartels, M, van Beijsterveldt, CEM, Bogl, LH, Pietilainen, KH, Vuoksimaa, E, Ji, F, Ning, F, Pang, Z, Nelson, TL, Whitfield, KE, Rebato, E, Llewellyn, CH, Fisher, A, Bayasgalan, G, Narandalai, D, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Tarnoki, AD, Tarnoki, DL, Ooki, S, Stazi, MA, Fagnani, C, Brescianini, S, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Cutler, TL, Hopper, JL, Krueger, RF, McGue, M, Pahlen, S, Craig, JM, Saffery, R, Haworth, CMA, Plomin, R, Knafo-Noam, A, Mankuta, D, Abramson, L, Burt, SA, Klump, KL, Vlietinck, RF, Derom, CA, Loos, RJF, Boomsma, DI, Sorensen, TIA, Kaprio, J, and Silventoinen, K

Abstract

It is well established that boys are born heavier and longer than girls, but it remains unclear whether birth size in twins is affected by the sex of their co-twin. We conducted an individual-based pooled analysis of 21 twin cohorts in 15 countries derived from the COllaborative project of Development of Anthropometrical measures in Twins (CODATwins), including 67,850 dizygotic twin individuals. Linear regression analyses showed that boys having a co-twin sister were, on average, 31 g (95% CI 18 to 45) heavier and 0.16 cm (95% CI 0.045 to 0.274) longer than those with a co-twin brother. In girls, birth size was not associated (5 g birth weight; 95% CI -8 to -18 and -0.089 cm birth length; 95% CI -0.202 to 0.025) with the sex of the co-twin. Gestational age was slightly shorter in boy-boy pairs than in boy-girl and girl-girl pairs. When birth size was standardized by gestational age, the magnitude of the associations was attenuated in boys, particularly for birth weight. In conclusion, boys with a co-twin sister are heavier and longer at birth than those with a co-twin brother. However, these differences are modest and partly explained by a longer gestation in the presence of a co-twin sister.

Published
2018

26. Association of current and former smoking with body mass index: A study of smoking discordant twin pairs from 21 twin cohorts

Author

Remuzzi, G, Piirtola, M, Jelenkovic, A, Latvala, A, Sund, R, Honda, C, Inui, F, Watanabe, M, Tomizawa, R, Iwatani, Y, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Tarnoki, AD, Tarnoki, DL, Martin, NG, Montgomery, GW, Medland, SE, Rasmussen, F, Tynelius, P, Tan, Q, Zhang, D, Pang, Z, Rebato, E, Stazi, MA, Fagnani, C, Brescianini, S, Busjahn, A, Harris, JR, Brandt, I, Nilsen, TS, Cutler, TL, Hopper, JL, Corley, RP, Huibregtse, BM, Sung, J, Kim, J, Lee, J, Lee, S, Gatz, M, Butler, DA, Franz, CE, Kremen, WS, Lyons, MJ, Magnusson, PKE, Pedersen, NL, Aslan, AKD, Oncel, SY, Aliev, F, Derom, CA, Vlietinck, RF, Loos, RJF, Silberg, JL, Maes, HH, Boomsma, D, Sorensen, TIA, Korhonen, T, Kaprio, J, Silventoinen, K, Remuzzi, G, Piirtola, M, Jelenkovic, A, Latvala, A, Sund, R, Honda, C, Inui, F, Watanabe, M, Tomizawa, R, Iwatani, Y, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Tarnoki, AD, Tarnoki, DL, Martin, NG, Montgomery, GW, Medland, SE, Rasmussen, F, Tynelius, P, Tan, Q, Zhang, D, Pang, Z, Rebato, E, Stazi, MA, Fagnani, C, Brescianini, S, Busjahn, A, Harris, JR, Brandt, I, Nilsen, TS, Cutler, TL, Hopper, JL, Corley, RP, Huibregtse, BM, Sung, J, Kim, J, Lee, J, Lee, S, Gatz, M, Butler, DA, Franz, CE, Kremen, WS, Lyons, MJ, Magnusson, PKE, Pedersen, NL, Aslan, AKD, Oncel, SY, Aliev, F, Derom, CA, Vlietinck, RF, Loos, RJF, Silberg, JL, Maes, HH, Boomsma, D, Sorensen, TIA, Korhonen, T, Kaprio, J, and Silventoinen, K

Abstract

BACKGROUND: Smokers tend to weigh less than never smokers, while successful quitting leads to an increase in body weight. Because smokers and non-smokers may differ in genetic and environmental family background, we analysed data from twin pairs in which the co-twins differed by their smoking behaviour to evaluate if the association between smoking and body mass index (BMI) remains after controlling for family background. METHODS AND FINDINGS: The international CODATwins database includes information on smoking and BMI measured between 1960 and 2012 from 156,593 twin individuals 18-69 years of age. Individual-based data (230,378 measurements) and data of smoking discordant twin pairs (altogether 30,014 pairwise measurements, 36% from monozygotic [MZ] pairs) were analysed with linear fixed-effects regression models by 10-year periods. In MZ pairs, the smoking co-twin had, on average, 0.57 kg/m2 lower BMI in men (95% confidence interval (CI): 0.49, 0.70) and 0.65 kg/m2 lower BMI in women (95% CI: 0.52, 0.79) than the never smoking co-twin. Former smokers had 0.70 kg/m2 higher BMI among men (95% CI: 0.63, 0.78) and 0.62 kg/m2 higher BMI among women (95% CI: 0.51, 0.73) than their currently smoking MZ co-twins. Little difference in BMI was observed when comparing former smoking co-twins with their never smoking MZ co-twins (0.13 kg/m2, 95% CI 0.04, 0.23 among men; -0.04 kg/m2, 95% CI -0.16, 0.09 among women). The associations were similar within dizygotic pairs and when analysing twins as individuals. The observed series of cross-sectional associations were independent of sex, age, and measurement decade. CONCLUSIONS: Smoking is associated with lower BMI and smoking cessation with higher BMI. However, the net effect of smoking and subsequent cessation on weight development appears to be minimal, i.e. never more than an average of 0.7 kg/m2.

Published
2018

27. Association between birth weight and educational attainment: an individual-based pooled analysis of nine twin cohorts

Author

Jelenkovic, A, Mikkonen, J, Martikainen, P, Latvala, A, Yokoyama, Y, Sund, R, Vuoksimaa, E, Rebato, E, Sung, J, Kim, J, Lee, J, Lee, S, Stazi, MA, Fagnani, C, Brescianini, S, Derom, CA, Vlietinck, RF, Loos, RJF, Krueger, RF, Mcgue, M, Pahlen, S, Nelson, TL, Whitfield, KE, Brandt, I, Nilsen, TS, Harris, JR, Cutler, TL, Hopper, JL, Tarnoki, AD, Tarnoki, DL, Sorensen, TIA, Kaprio, J, Silventoinen, K, Jelenkovic, A, Mikkonen, J, Martikainen, P, Latvala, A, Yokoyama, Y, Sund, R, Vuoksimaa, E, Rebato, E, Sung, J, Kim, J, Lee, J, Lee, S, Stazi, MA, Fagnani, C, Brescianini, S, Derom, CA, Vlietinck, RF, Loos, RJF, Krueger, RF, Mcgue, M, Pahlen, S, Nelson, TL, Whitfield, KE, Brandt, I, Nilsen, TS, Harris, JR, Cutler, TL, Hopper, JL, Tarnoki, AD, Tarnoki, DL, Sorensen, TIA, Kaprio, J, and Silventoinen, K

Abstract

BACKGROUND: There is evidence that birth weight is positively associated with education, but it remains unclear whether this association is explained by familial environmental factors, genetic factors or the intrauterine environment. We analysed the association between birth weight and educational years within twin pairs, which controls for genetic factors and the environment shared between co-twins. METHODS: The data were derived from nine twin cohorts in eight countries including 6116 complete twin pairs. The association between birth weight and educational attainment was analysed both between individuals and within pairs using linear regression analyses. RESULTS: In between-individual analyses, birth weight was not associated with educational years. Within-pairs analyses revealed positive but modest associations for some sex, zygosity and birth year groups. The greatest association was found in dizygotic (DZ) men (0.65 educational years/kg birth weight, p=0.006); smaller effects of 0.3 educational years/kg birth weight were found within monozygotic (MZ) twins of both sexes and opposite-sex DZ twins. The magnitude of the associations differed by birth year in MZ women and opposite-sex DZ twins, showing a positive association in the 1915-1959 birth cohort but no association in the 1960-1984 birth cohort. CONCLUSION: Although associations are weak and somewhat inconsistent, our results suggest that intrauterine environment may play a role when explaining the association between birth weight and educational attainment.

Published
2018

28. The EHU12/24 cohort: survey design, instruments and participants.

Author

Telleria-Aramburu, N., Rocandio, A. M., Rebato, E., and Arroyo-Izaga, M.

Subjects
OBESITY risk factors, ANTHROPOMETRY, COLLEGE students, EXPERIMENTAL design, INTELLECT, LONGITUDINAL method, SCIENTIFIC observation, SEX distribution, SURVEYS, WEIGHTS & measures, SOCIOECONOMIC factors, LIFESTYLES
Abstract

The EHU12/24 (code of a survey from the University of the Basque Country/Euskal Herriko Unibertsitatea, UPV/EHU) study was designed to investigate the risk factors of overweight/obesity-related lifestyles, particularly those associated with diet, their psychosocial influences and the interactions among these factors. This observational cohort study was carried out according to a standardised protocol and involved a representative sample of the UPV/EHU student population. Anthropometric measurements, direct behavioural determinants, such as physical activity and diet, and indirect determinants, such as social/psychological factors, are considered. In this paper, we present the survey design, instruments, measurements and related quality management. We describe the study sample in terms of its socio-economic and demographic factors and knowledge area and summarise the methodology used to collect the data and obtain the anthropometric measurements. The participants were 603 students (59·5 % female) aged 18–28 years. The crude participation proportion was 53·5 %. Regarding the knowledge area, the lowest response proportions were obtained from the Health Sciences (38·6 %) compared with the Non-Health Sciences (48·3 %) (P = 0·003). The mean age was 20·9 years, and 83·1 % of the sample were from Basque Country. Regarding the socio-economic characteristics, there were significant differences by sex and knowledge area in most studied variables. Moreover, the Health Sciences students were more likely younger, from outside Basque Country, to have parents with university degrees and to have a higher social status. In conclusion, the EHU12/24 cohort provides valuable data for analysing the complexity and multidimensionality of obesity in university students. [ABSTRACT FROM AUTHOR]

Published
2020
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29. Association between birthweight and later body mass index: an individual-based pooled analysis of 27 twin cohorts participating in the CODATwins project

Author

Jelenkovic, A, Yokoyama, Y, Sund, R, Pietilainen, KH, Hur, Y-M, Willemsen, G, Bartels, M, van Beijsterveldt, TCEM, Ooki, S, Saudino, KJ, Stazi, MA, Fagnani, C, D'Ippolito, C, Nelson, TL, Whitfield, KE, Knafo-Noam, A, Mankuta, D, Abramson, L, Heikkila, K, Cutler, TL, Hopper, JL, Wardle, J, Llewellyn, CH, Fisher, A, Corley, RP, Huibregtse, BM, Derom, CA, Vlietinck, RF, Loos, RJF, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Tarnoki, AD, LTarnoki, D, Burt, SA, Klump, KL, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Harris, JR, Brandt, L, Nilsen, TS, Craig, JM, Saffery, R, Rasmussen, F, Tynelius, P, Bayasgalan, G, Narandalai, D, Haworth, CMA, Plomin, R, Ji, F, Ning, F, Pang, Z, Rebato, E, Krueger, RF, Mcgue, M, Pahlen, S, Boomsma, DI, Sorensen, TIA, Kaprio, J, Silventoinen, K, Jelenkovic, A, Yokoyama, Y, Sund, R, Pietilainen, KH, Hur, Y-M, Willemsen, G, Bartels, M, van Beijsterveldt, TCEM, Ooki, S, Saudino, KJ, Stazi, MA, Fagnani, C, D'Ippolito, C, Nelson, TL, Whitfield, KE, Knafo-Noam, A, Mankuta, D, Abramson, L, Heikkila, K, Cutler, TL, Hopper, JL, Wardle, J, Llewellyn, CH, Fisher, A, Corley, RP, Huibregtse, BM, Derom, CA, Vlietinck, RF, Loos, RJF, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Tarnoki, AD, LTarnoki, D, Burt, SA, Klump, KL, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Harris, JR, Brandt, L, Nilsen, TS, Craig, JM, Saffery, R, Rasmussen, F, Tynelius, P, Bayasgalan, G, Narandalai, D, Haworth, CMA, Plomin, R, Ji, F, Ning, F, Pang, Z, Rebato, E, Krueger, RF, Mcgue, M, Pahlen, S, Boomsma, DI, Sorensen, TIA, Kaprio, J, and Silventoinen, K

Abstract

BACKGROUND: There is evidence that birthweight is positively associated with body mass index (BMI) in later life, but it remains unclear whether this is explained by genetic factors or the intrauterine environment. We analysed the association between birthweight and BMI from infancy to adulthood within twin pairs, which provides insights into the role of genetic and environmental individual-specific factors. METHODS: This study is based on the data from 27 twin cohorts in 17 countries. The pooled data included 78 642 twin individuals (20 635 monozygotic and 18 686 same-sex dizygotic twin pairs) with information on birthweight and a total of 214 930 BMI measurements at ages ranging from 1 to 49 years. The association between birthweight and BMI was analysed at both the individual and within-pair levels using linear regression analyses. RESULTS: At the individual level, a 1-kg increase in birthweight was linearly associated with up to 0.9 kg/m2 higher BMI (P < 0.001). Within twin pairs, regression coefficients were generally greater (up to 1.2 kg/m2 per kg birthweight, P < 0.001) than those from the individual-level analyses. Intra-pair associations between birthweight and later BMI were similar in both zygosity groups and sexes and were lower in adulthood. CONCLUSIONS: These findings indicate that environmental factors unique to each individual have an important role in the positive association between birthweight and later BMI, at least until young adulthood.

Published
2017

30. Does the sex of one's co-twin affect height and BMI in adulthood? A study of dizygotic adult twins from 31 cohorts

Author

Bogl, LH, Jelenkovic, A, Vuoksimaa, E, Ahrenfeldt, L, Pietilainen, KH, Stazi, MA, Fagnani, C, D'Ippolito, C, Hur, Y-M, Jeong, H-U, Silberg, JL, Eaves, LJ, Maes, HH, Bayasgalan, G, Narandalai, D, Cutler, TL, Kandler, C, Jang, KL, Christensen, K, Skytthe, A, Kyvik, KO, Cozen, W, Hwang, AE, Mack, TM, Derom, CA, Vlietinck, RF, Nelson, TL, Whitfield, KE, Corley, RP, Huibregtse, BM, McAdams, TA, Eley, TC, Gregory, AM, Krueger, RF, Mcgue, M, Pahlen, S, Willemsen, G, Bartels, M, van Beijsterveldt, TCEM, Pang, Z, Tan, Q, Zhang, D, Martin, NG, Medland, SE, Montgomery, GW, Hjelmborg, JVB, Rebato, E, Swan, GE, Krasnow, R, Busjahn, A, Lichtenstein, P, Oncel, SY, Aliev, F, Baker, LA, Tuvblad, C, Siribaddana, SH, Hotopf, M, Sumathipala, A, Rijsdijk, F, Magnusson, PKE, Pedersen, NL, Aslan, AKD, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Duncan, GE, Buchwald, D, Tarnoki, AD, Tarnoki, DL, Yokoyama, Y, Hopper, JL, Loos, RJF, Boomsma, DI, Sorensen, TIA, Silventoinen, K, Kaprio, J, Bogl, LH, Jelenkovic, A, Vuoksimaa, E, Ahrenfeldt, L, Pietilainen, KH, Stazi, MA, Fagnani, C, D'Ippolito, C, Hur, Y-M, Jeong, H-U, Silberg, JL, Eaves, LJ, Maes, HH, Bayasgalan, G, Narandalai, D, Cutler, TL, Kandler, C, Jang, KL, Christensen, K, Skytthe, A, Kyvik, KO, Cozen, W, Hwang, AE, Mack, TM, Derom, CA, Vlietinck, RF, Nelson, TL, Whitfield, KE, Corley, RP, Huibregtse, BM, McAdams, TA, Eley, TC, Gregory, AM, Krueger, RF, Mcgue, M, Pahlen, S, Willemsen, G, Bartels, M, van Beijsterveldt, TCEM, Pang, Z, Tan, Q, Zhang, D, Martin, NG, Medland, SE, Montgomery, GW, Hjelmborg, JVB, Rebato, E, Swan, GE, Krasnow, R, Busjahn, A, Lichtenstein, P, Oncel, SY, Aliev, F, Baker, LA, Tuvblad, C, Siribaddana, SH, Hotopf, M, Sumathipala, A, Rijsdijk, F, Magnusson, PKE, Pedersen, NL, Aslan, AKD, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Duncan, GE, Buchwald, D, Tarnoki, AD, Tarnoki, DL, Yokoyama, Y, Hopper, JL, Loos, RJF, Boomsma, DI, Sorensen, TIA, Silventoinen, K, and Kaprio, J

Abstract

BACKGROUND: The comparison of traits in twins from opposite-sex (OS) and same-sex (SS) dizygotic twin pairs is considered a proxy measure of prenatal hormone exposure. To examine possible prenatal hormonal influences on anthropometric traits, we compared mean height, body mass index (BMI), and the prevalence of being overweight or obese between men and women from OS and SS dizygotic twin pairs. METHODS: The data were derived from the COllaborative project of Development of Anthropometrical measures in Twins (CODATwins) database, and included 68,494 SS and 53,808 OS dizygotic twin individuals above the age of 20 years from 31 twin cohorts representing 19 countries. Zygosity was determined by questionnaires or DNA genotyping depending on the study. Multiple regression and logistic regression models adjusted for cohort, age, and birth year with the twin type as a predictor were carried out to compare height and BMI in twins from OS pairs with those from SS pairs and to calculate the adjusted odds ratios and 95% confidence intervals for being overweight or obese. RESULTS: OS females were, on average, 0.31 cm (95% confidence interval (CI) 0.20, 0.41) taller than SS females. OS males were also, on average, taller than SS males, but this difference was only 0.14 cm (95% CI 0.02, 0.27). Mean BMI and the prevalence of overweight or obesity did not differ between males and females from SS and OS twin pairs. The statistically significant differences between OS and SS twins for height were small and appeared to reflect our large sample size rather than meaningful differences of public health relevance. CONCLUSIONS: We found no evidence to support the hypothesis that prenatal hormonal exposure or postnatal socialization (i.e., having grown up with a twin of the opposite sex) has a major impact on height and BMI in adulthood.

Published
2017

31. Differences in genetic and environmental variation in adult BMI by sex, age, time period, and region : An individual-based pooled analysis of 40 twin cohorts

Author

Silventoinen, K., Jelenkovic, A., Sund, R., Yokoyama, Y., Hur, Y. -M, Cozen, W., Hwang, A. E., Mack, T. M., Honda, C., Inui, F., Iwatani, Y., Watanabe, M., Tomizawa, R., Pietilainen, K. H., Rissanen, A., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Rijsdijk, F., Tan, Q., Zhang, D., Pang, Z., Piirtola, M., Aaltonen, S., Oncel, S. Y., Aliev, F., Rebato, E., Hjelmborg, J. B., Christensen, K., Skytthe, A., Kyvik, K. O., Silberg, J. L., Eaves, L. J., Cutler, T. L., Ordonana, J. R., Sanchez-Romera, J. F., Colodro-Conde, L., Song, Y. -M, Yang, S., Lee, K., Franz, C. E., Kremen, W. S., Lyons, M. J., Busjahn, A., Nelson, T. L., Whitfield, K. E., Kandler, C., Jang, K. L., Gatz, M., Butler, D. A., Stazi, M. A., Fagnani, C., D'Ippolito, C., Duncan, G. E., Buchwald, D., Martin, N. G., Medland, S. E., Montgomery, G. W., Jeong, H. -U, Swan, G. E., Krasnow, R., Magnusson, P. K. E., Pedersen, N. L., Dahl Aslan, Anna K., McAdams, T. A., Eley, T. C., Gregory, A. M., Tynelius, P., Baker, L. A., Tuvblad, C., Bayasgalan, G., Narandalai, D., Spector, T. D., Mangino, M., Lachance, G., Burt, S. A., Klump, K. L., Harris, J. R., Brandt, I., Nilsen, T. S., Krueger, R. F., McGue, M., Pahlen, S., Corley, R. P., Huibregtse, B. M., Bartels, M., Van Beijsterveldt, C. E. M., Willemsen, G., Goldberg, J. H., Rasmussen, F., Tarnoki, A. D., Tarnoki, D. L., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Hopper, J. L., Sung, J., Maes, H. H., Turkheimer, E., Boomsma, D. I., Sørensen, T. I. A., Kaprio, J., Silventoinen, K., Jelenkovic, A., Sund, R., Yokoyama, Y., Hur, Y. -M, Cozen, W., Hwang, A. E., Mack, T. M., Honda, C., Inui, F., Iwatani, Y., Watanabe, M., Tomizawa, R., Pietilainen, K. H., Rissanen, A., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Rijsdijk, F., Tan, Q., Zhang, D., Pang, Z., Piirtola, M., Aaltonen, S., Oncel, S. Y., Aliev, F., Rebato, E., Hjelmborg, J. B., Christensen, K., Skytthe, A., Kyvik, K. O., Silberg, J. L., Eaves, L. J., Cutler, T. L., Ordonana, J. R., Sanchez-Romera, J. F., Colodro-Conde, L., Song, Y. -M, Yang, S., Lee, K., Franz, C. E., Kremen, W. S., Lyons, M. J., Busjahn, A., Nelson, T. L., Whitfield, K. E., Kandler, C., Jang, K. L., Gatz, M., Butler, D. A., Stazi, M. A., Fagnani, C., D'Ippolito, C., Duncan, G. E., Buchwald, D., Martin, N. G., Medland, S. E., Montgomery, G. W., Jeong, H. -U, Swan, G. E., Krasnow, R., Magnusson, P. K. E., Pedersen, N. L., Dahl Aslan, Anna K., McAdams, T. A., Eley, T. C., Gregory, A. M., Tynelius, P., Baker, L. A., Tuvblad, C., Bayasgalan, G., Narandalai, D., Spector, T. D., Mangino, M., Lachance, G., Burt, S. A., Klump, K. L., Harris, J. R., Brandt, I., Nilsen, T. S., Krueger, R. F., McGue, M., Pahlen, S., Corley, R. P., Huibregtse, B. M., Bartels, M., Van Beijsterveldt, C. E. M., Willemsen, G., Goldberg, J. H., Rasmussen, F., Tarnoki, A. D., Tarnoki, D. L., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Hopper, J. L., Sung, J., Maes, H. H., Turkheimer, E., Boomsma, D. I., Sørensen, T. I. A., and Kaprio, J.

Abstract

Background: Genes and the environment contribute to variation in adult body mass index [BMI (in kg/m2)], but factors modifying these variance components are poorly understood. Objective: We analyzed genetic and environmental variation in BMI between men and women from young adulthood to old age from the 1940s to the 2000s and between cultural-geographic regions representing high (North America and Australia), moderate (Europe), and low (East Asia) prevalence of obesity. Design: We used genetic structural equation modeling to analyze BMI in twins ≥20 y of age from 40 cohorts representing 20 countries (140,379 complete twin pairs). Results: The heritability of BMI decreased from 0.77 (95% CI: 0.77, 0.78) and 0.75 (95% CI: 0.74, 0.75) in men and women 20-29 y of age to 0.57 (95% CI: 0.54, 0.60) and 0.59 (95% CI: 0.53, 0.65) in men 70-79 y of age and women 80 y of age, respectively. The relative influence of unique environmental factors correspondingly increased. Differences in the sets of genes affecting BMI in men and women increased from 20-29 to 60-69 y of age. Mean BMI and variances in BMI increased from the 1940s to the 2000s and were greatest in North America and Australia, followed by Europe and East Asia. However, heritability estimates were largely similar over measurement years and between regions. There was no evidence of environmental factors shared by co-twins affecting BMI. Conclusions: The heritability of BMI decreased and differences in the sets of genes affecting BMI in men and women increased from young adulthood to old age. The heritability of BMI was largely similar between cultural-geographic regions and measurement years, despite large differences in mean BMI and variances in BMI. Our results show a strong influence of genetic factors on BMI, especially in early adulthood, regardless of the obesity level in the population.

Published
2017
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32. New specific bioelectrical impedance vector reference values for assessing body composition in the Italian-Spanish young adult population

Author

Ibáñez, Me, Mereu, E, Buffa, R, Gualdi, Emanuela, Zaccagni, Luciana, Cossu, S, Rebato, E, and Marini, E.

Subjects
index, Adult, Male, Fat-free mass, analysis biva, nutritional-status, phase-angle, age, percentage, sex, Adolescent, Anthropometry, Age Factors, Ambientale, Reproducibility of Results, White People, Young Adult, Italy, Reference Values, Spain, Body Composition, Electric Impedance, Humans, Female
Abstract

Specific bioelectrical impedance vector analysis (spBIVA) is a recently proposed technique for the analysis of body composition. The aim of this study was to apply spBIVA to a sample of Italian and Spanish young adults and to define the new bioelectrical references for this Western Mediterranean population.A sample of 440 individuals (220 from Italy, 220 from Spain; 213 men, 227 women) aged 18-30 years was considered. Anthropometric (height, weight, relaxed upper arm, waist, and calf girths) and bioelectrical (resistance, reactance; 50 kHz, 800 μA) measurements were taken. In order to verify the need for new references, specific bioelectrical values were compared to the reference values for U.S. adults and Italian elderly by tolerance ellipses and Student's t test.The mean specific bioelectrical values (resistivity, Rsp, and reactivity, Xcsp, Ohm·cm) were: Rsp (332.7 ± 41.7 Ω·cm), Xcsp (44.4 ± 6.8 Ω·cm), Zsp (335.6 ± 41.9 Ω·cm) and phase (7.6 ± 0.8°) in men; Rsp (388.6 ± 60 Ω·cm), Xcsp (43.7 ± 7.5 Ω·cm), Zsp (391.0 ± 60.3 Ω·cm) and phase (6.4 ± 0.7°) in women. Italo-Spanish bioelectrical vectors were mainly distributed (90%) in the lower part of the tolerance ellipses for U.S. young adults, due to a shorter impedance (P 0.001), indicative of a lower percent fat mass. Compared to Italian elders, they were mainly located in the left side (90%), due to a higher phase (P 0.001), indicative of higher body cell mass.These population and age-related differences indicate the need for new specific tolerance ellipses that can be used as references for assessing body composition in young adults from Western Mediterranean populations.

Published
2014

33. Genetic and environmental influences on adult human height across birth cohorts from 1886 to 1994

Author

Jelenkovic, A., Hur, Y. -M, Sund, R., Yokoyama, Y., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Rijsdijk, F., Tan, Q., Zhang, D., Pang, Z., Aaltonen, S., Heikkilä, K., Öncel, S.Y., Aliev, F., Rebato, E., Tarnoki, A. D., Tarnoki, D. L., Christensen, K., Skytthe, A., Kyvik, K. O., Silberg, J. L., Eaves, L. J., Maes, H. H., Cutler, T. L., Hopper, J. L., Ordoñana, J. R., Sánchez-Romera, J. F., Colodro-Conde, L., Cozen, W., Hwang, A. E., Mack, T. M., Sung, J., Song, Y. -M, Yang, S., Lee, K., Franz, C. E., Kremen, W. S., Lyons, M. J., Busjahn, A., Nelson, T. L., Whitfield, K. E., Kandler, C., Jang, K. L., Gatz, M., Butler, D. A., Stazi, M. A., Fagnani, C., D’Ippolito, C., Duncan, G. E., Buchwald, D., Derom, C. A., Vlietinck, R. F., Loos, R. J., Martin, N. G., Medland, S. E., Montgomery, G. W., Jeong, H. -U, Swan, G. E., Krasnow, R., Magnusson, P. K., Pedersen, N. L., Dahl-Aslan, Anna K., McAdams, T. A., Eley, T. C., Gregory, A. M., Tynelius, P., Baker, L. A., Tuvblad, C., Bayasgalan, G., Narandalai, D., Lichtenstein, P., Spector, T. D., Mangino, M., Lachance, G., Bartels, M., Van Beijsterveldt, T. C., Willemsen, G., Alexandra Burt, S., Klump, K. L., Harris, J. R., Brandt, I., Nilsen, T. S., Krueger, R. F., McGue, M., Pahlen, S., Corley, R. P., Hjelmborg, J. V. B., Goldberg, J. H., Iwatani, Y., Watanabe, M., Honda, C., Inui, F., Rasmussen, F., Huibregtse, B. M., Boomsma, D. I., Sørensen, T. I. A., Kaprio, J., Silventoinen, K., Jelenkovic, A., Hur, Y. -M, Sund, R., Yokoyama, Y., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Rijsdijk, F., Tan, Q., Zhang, D., Pang, Z., Aaltonen, S., Heikkilä, K., Öncel, S.Y., Aliev, F., Rebato, E., Tarnoki, A. D., Tarnoki, D. L., Christensen, K., Skytthe, A., Kyvik, K. O., Silberg, J. L., Eaves, L. J., Maes, H. H., Cutler, T. L., Hopper, J. L., Ordoñana, J. R., Sánchez-Romera, J. F., Colodro-Conde, L., Cozen, W., Hwang, A. E., Mack, T. M., Sung, J., Song, Y. -M, Yang, S., Lee, K., Franz, C. E., Kremen, W. S., Lyons, M. J., Busjahn, A., Nelson, T. L., Whitfield, K. E., Kandler, C., Jang, K. L., Gatz, M., Butler, D. A., Stazi, M. A., Fagnani, C., D’Ippolito, C., Duncan, G. E., Buchwald, D., Derom, C. A., Vlietinck, R. F., Loos, R. J., Martin, N. G., Medland, S. E., Montgomery, G. W., Jeong, H. -U, Swan, G. E., Krasnow, R., Magnusson, P. K., Pedersen, N. L., Dahl-Aslan, Anna K., McAdams, T. A., Eley, T. C., Gregory, A. M., Tynelius, P., Baker, L. A., Tuvblad, C., Bayasgalan, G., Narandalai, D., Lichtenstein, P., Spector, T. D., Mangino, M., Lachance, G., Bartels, M., Van Beijsterveldt, T. C., Willemsen, G., Alexandra Burt, S., Klump, K. L., Harris, J. R., Brandt, I., Nilsen, T. S., Krueger, R. F., McGue, M., Pahlen, S., Corley, R. P., Hjelmborg, J. V. B., Goldberg, J. H., Iwatani, Y., Watanabe, M., Honda, C., Inui, F., Rasmussen, F., Huibregtse, B. M., Boomsma, D. I., Sørensen, T. I. A., Kaprio, J., and Silventoinen, K.

Abstract

Human height variation is determined by genetic and environmental factors, but it remains unclear whether their influences differ across birth-year cohorts. We conducted an individual-based pooled analysis of 40 twin cohorts including 143,390 complete twin pairs born 1886-1994. Although genetic variance showed a generally increasing trend across the birth-year cohorts, heritability estimates (0.69-0.84 in men and 0.53-0.78 in women) did not present any clear pattern of secular changes. Comparing geographic-cultural regions (Europe, North America and Australia, and East Asia), total height variance was greatest in North America and Australia and lowest in East Asia, but no clear pattern in the heritability estimates across the birth-year cohorts emerged. Our findings do not support the hypothesis that heritability of height is lower in populations with low living standards than in affluent populations, nor that heritability of height will increase within a population as living standards improve.

Published
2016
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34. Genetic and environmental influences on adult human height across birth cohorts from 1886 to 1994

Author

University of Helsinki, Department of Social Research, University of Helsinki, Department of Public Health, University of Helsinki, Clinicum, Jelenkovic, Aline, Hur, Yoon-Mi, Sund, Reijo, Yokoyama, Y., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Rijsdijk, F., Tan, Q., Zhang, D., Pang, Z., Aaltonen, Sari, Heikkilä, Kauko, Oncel, S. Y., Aliev, F., Rebato, E., Tarnoki, A. D., Tarnoki, D. L., Christensen, K., Skytthe, A., Kyvik, K. O., Silberg, J. L., Eaves, L. J., Maes, H. H., Cutler, T. L., Hopper, J. L., Ordonana, J. R., Sanchez-Romera, J. F., Colodro-Conde, L., Cozen, W., Hwang, A. E., Mack, T. M., Sung, J., Song, Y. M., Yang, S., Lee, K., Franz, C. E., Kremen, W. S., Lyons, M. J., Busjahn, A., Nelson, T. L., Whitfield, K. E., Kandler, C., Jang, K. L., Gatz, M., Butler, D. A., Stazi, M. A., Fagnani, C., D'Ippolito, C., Duncan, G. E., Buchwald, D., Derom, C. A., Vlietinck, R. F., Loos, R. J., Martin, N. G., Medland, S. E., Montgomery, G. W., Jeong, H. U., Swan, G. E., Krasnow, R., Magnusson, P. K., Pedersen, N. L., Dahl-Aslan, A. K., McAdams, T. A., Eley, T. C., Gregory, A. M., Tynelius, P., Baker, L. A., Tuvblad, C., Bayasgalan, G., Narandalai, D., Lichtenstein, P., Spector, T. D., Mangino, M., Lachance, G., Bartels, M., van Beijsterveldt, T. C., Willemsen, G., Burt, S. A., Klump, K. L., Harris, J. R., Brandt, I., Nilsen, T. S., Krueger, R. F., McGue, M., Pahlen, S., Corley, R. P., Hjelmborg, J. V., Goldberg, J. H., Iwatani, Y., Watanabe, M., Honda, C., Inui, F., Rasmussen, F., Huibregtse, B. M., Boomsma, D. I., Sorensen, T. I., Kaprio, Jaakko, Silventoinen, Karri, University of Helsinki, Department of Social Research, University of Helsinki, Department of Public Health, University of Helsinki, Clinicum, Jelenkovic, Aline, Hur, Yoon-Mi, Sund, Reijo, Yokoyama, Y., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Rijsdijk, F., Tan, Q., Zhang, D., Pang, Z., Aaltonen, Sari, Heikkilä, Kauko, Oncel, S. Y., Aliev, F., Rebato, E., Tarnoki, A. D., Tarnoki, D. L., Christensen, K., Skytthe, A., Kyvik, K. O., Silberg, J. L., Eaves, L. J., Maes, H. H., Cutler, T. L., Hopper, J. L., Ordonana, J. R., Sanchez-Romera, J. F., Colodro-Conde, L., Cozen, W., Hwang, A. E., Mack, T. M., Sung, J., Song, Y. M., Yang, S., Lee, K., Franz, C. E., Kremen, W. S., Lyons, M. J., Busjahn, A., Nelson, T. L., Whitfield, K. E., Kandler, C., Jang, K. L., Gatz, M., Butler, D. A., Stazi, M. A., Fagnani, C., D'Ippolito, C., Duncan, G. E., Buchwald, D., Derom, C. A., Vlietinck, R. F., Loos, R. J., Martin, N. G., Medland, S. E., Montgomery, G. W., Jeong, H. U., Swan, G. E., Krasnow, R., Magnusson, P. K., Pedersen, N. L., Dahl-Aslan, A. K., McAdams, T. A., Eley, T. C., Gregory, A. M., Tynelius, P., Baker, L. A., Tuvblad, C., Bayasgalan, G., Narandalai, D., Lichtenstein, P., Spector, T. D., Mangino, M., Lachance, G., Bartels, M., van Beijsterveldt, T. C., Willemsen, G., Burt, S. A., Klump, K. L., Harris, J. R., Brandt, I., Nilsen, T. S., Krueger, R. F., McGue, M., Pahlen, S., Corley, R. P., Hjelmborg, J. V., Goldberg, J. H., Iwatani, Y., Watanabe, M., Honda, C., Inui, F., Rasmussen, F., Huibregtse, B. M., Boomsma, D. I., Sorensen, T. I., Kaprio, Jaakko, and Silventoinen, Karri

Abstract

Human height variation is determined by genetic and environmental factors, but it remains unclear whether their influences differ across birth-year cohorts. We conducted an individual-based pooled analysis of 40 twin cohorts including 143,390 complete twin pairs born 1886-1994. Although genetic variance showed a generally increasing trend across the birth-year cohorts, heritability estimates (0.69-0.84 in men and 0.53-0.78 in women) did not present any clear pattern of secular changes. Comparing geographic-cultural regions (Europe, North America and Australia, and East Asia), total height variance was greatest in North America and Australia and lowest in East Asia, but no clear pattern in the heritability estimates across the birth-year cohorts emerged. Our findings do not support the hypothesis that heritability of height is lower in populations with low living standards than in affluent populations, nor that heritability of height will increase within a population as living standards improve.

Published
2016

35. Genetic and environmental effects on body mass index from infancy to the onset of adulthood: an individual-based pooled analysis of 45 twin cohorts participating in the COllaborative project of Development of Anthropometrical measures in Twins (CODATwins)

Author

Silventoinen, K, Jelenkovic, A, Sund, R, Hur, Y-M, Yokoyama, Y, Honda, C, Hjelmborg, JV, Möller, S, Ooki, S, Aaltonen, S, Ji, F, Ning, F, Pang, Z, Rebato, E, Busjahn, A, Kandler, C, Saudino, KJ, Jang, KL, Cozen, W, Hwang, AE, Mack, TM, Gao, W, Yu, C, Li, L, Corley, RP, Huibregtse, BM, Christensen, K, Skytthe, A, Kyvik, KO, Derom, CA, Vlietinck, RF, Loos, RJ, Heikkilä, K, Wardle, J, Llewellyn, CH, Fisher, A, McAdams, TA, Eley, TC, Gregory, AM, He, M, Ding, X, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Tarnoki, AD, Tarnoki, DL, Stazi, MA, Fagnani, C, D'Ippolito, C, Knafo-Noam, A, Mankuta, D, Abramson, L, Burt, SA, Klump, KL, Silberg, JL, Eaves, LJ, Maes, HH, Krueger, RF, McGue, M, Pahlen, S, Gatz, M, Butler, DA, Bartels, M, van Beijsterveldt, TC, Craig, Jeffrey, Saffery, R, Freitas, DL, Maia, JA, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Martin, NG, Medland, SE, Montgomery, GW, Chong, Y, Swan, GE, Krasnow, R, Magnusson, PK, Pedersen, NL, Tynelius, P, Lichtenstein, P, Haworth, CM, Plomin, R, Bayasgalan, G, Narandalai, D, Harden, KP, Tucker-Drob, EM, Öncel, SY, Aliev, F, Spector, T, Mangino, M, Lachance, G, Baker, LA, Tuvblad, C, Duncan, GE, Buchwald, D, Willemsen, G, Rasmussen, F, Goldberg, JH, Sørensen, TI, Boomsma, DI, Kaprio, J, Silventoinen, K, Jelenkovic, A, Sund, R, Hur, Y-M, Yokoyama, Y, Honda, C, Hjelmborg, JV, Möller, S, Ooki, S, Aaltonen, S, Ji, F, Ning, F, Pang, Z, Rebato, E, Busjahn, A, Kandler, C, Saudino, KJ, Jang, KL, Cozen, W, Hwang, AE, Mack, TM, Gao, W, Yu, C, Li, L, Corley, RP, Huibregtse, BM, Christensen, K, Skytthe, A, Kyvik, KO, Derom, CA, Vlietinck, RF, Loos, RJ, Heikkilä, K, Wardle, J, Llewellyn, CH, Fisher, A, McAdams, TA, Eley, TC, Gregory, AM, He, M, Ding, X, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Tarnoki, AD, Tarnoki, DL, Stazi, MA, Fagnani, C, D'Ippolito, C, Knafo-Noam, A, Mankuta, D, Abramson, L, Burt, SA, Klump, KL, Silberg, JL, Eaves, LJ, Maes, HH, Krueger, RF, McGue, M, Pahlen, S, Gatz, M, Butler, DA, Bartels, M, van Beijsterveldt, TC, Craig, Jeffrey, Saffery, R, Freitas, DL, Maia, JA, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Martin, NG, Medland, SE, Montgomery, GW, Chong, Y, Swan, GE, Krasnow, R, Magnusson, PK, Pedersen, NL, Tynelius, P, Lichtenstein, P, Haworth, CM, Plomin, R, Bayasgalan, G, Narandalai, D, Harden, KP, Tucker-Drob, EM, Öncel, SY, Aliev, F, Spector, T, Mangino, M, Lachance, G, Baker, LA, Tuvblad, C, Duncan, GE, Buchwald, D, Willemsen, G, Rasmussen, F, Goldberg, JH, Sørensen, TI, Boomsma, DI, and Kaprio, J

Published
2016

36. Genetic and environmental influences on adult human height across birth cohorts from 1886 to 1994

Author

Jelenkovic, A, Hur, Y-M, Sund, R, Yokoyama, Y, Siribaddana, SH, Hotopf, M, Sumathipala, A, Rijsdijk, F, Tan, Q, Zhang, D, Pang, Z, Aaltonen, S, Heikkila, K, Oncel, SY, Aliev, F, Rebato, E, Tarnoki, AD, Tarnoki, DL, Christensen, K, Skytthe, A, Kyvik, KO, Silberg, JL, Eaves, LJ, Maes, HH, Cutler, TL, Hopper, JL, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Cozen, W, Hwang, AE, Mack, TM, Sun, J, Song, Y-M, Yang, S, Lee, K, Franz, CE, Kremen, WS, Lyons, MJ, Busjahn, A, Nelson, TL, Whitfield, KE, Kandler, C, Jang, KL, Gatz, M, Butler, DA, Stazi, MA, Fagnani, C, D'Ippolito, C, Duncan, GE, Buchwald, D, Derom, CA, Vlietinck, RF, Loos, RJF, Martin, NG, Medland, SE, Montgomery, GW, Jeong, H-U, Swan, GE, Krasnow, R, Magnusson, PKE, Pedersen, NL, Dahl-Aslan, AK, McAdams, TA, Eley, TC, Gregory, AM, Tynelius, P, Baker, LA, Tuvblad, C, Bayasgalan, G, Narandalai, D, Lichtenstein, P, Spector, TD, Mangino, M, Lachance, G, Bartels, M, van Beijsterveldt, TCEM, Willemsen, G, Burt, SA, Klump, KL, Harris, JR, Brandt, I, Nilsen, TS, Krueger, RF, McGue, M, Pahlen, S, Corley, RP, Hjelmborg, JVB, Goldberg, JH, Iwatani, Y, Watanabe, M, Honda, C, Inui, F, Rasmussen, F, Huibregtse, BM, Boomsma, DI, Sorensen, TIA, Kaprio, J, Silventoinen, K, Jelenkovic, A, Hur, Y-M, Sund, R, Yokoyama, Y, Siribaddana, SH, Hotopf, M, Sumathipala, A, Rijsdijk, F, Tan, Q, Zhang, D, Pang, Z, Aaltonen, S, Heikkila, K, Oncel, SY, Aliev, F, Rebato, E, Tarnoki, AD, Tarnoki, DL, Christensen, K, Skytthe, A, Kyvik, KO, Silberg, JL, Eaves, LJ, Maes, HH, Cutler, TL, Hopper, JL, Ordonana, JR, Sanchez-Romera, JF, Colodro-Conde, L, Cozen, W, Hwang, AE, Mack, TM, Sun, J, Song, Y-M, Yang, S, Lee, K, Franz, CE, Kremen, WS, Lyons, MJ, Busjahn, A, Nelson, TL, Whitfield, KE, Kandler, C, Jang, KL, Gatz, M, Butler, DA, Stazi, MA, Fagnani, C, D'Ippolito, C, Duncan, GE, Buchwald, D, Derom, CA, Vlietinck, RF, Loos, RJF, Martin, NG, Medland, SE, Montgomery, GW, Jeong, H-U, Swan, GE, Krasnow, R, Magnusson, PKE, Pedersen, NL, Dahl-Aslan, AK, McAdams, TA, Eley, TC, Gregory, AM, Tynelius, P, Baker, LA, Tuvblad, C, Bayasgalan, G, Narandalai, D, Lichtenstein, P, Spector, TD, Mangino, M, Lachance, G, Bartels, M, van Beijsterveldt, TCEM, Willemsen, G, Burt, SA, Klump, KL, Harris, JR, Brandt, I, Nilsen, TS, Krueger, RF, McGue, M, Pahlen, S, Corley, RP, Hjelmborg, JVB, Goldberg, JH, Iwatani, Y, Watanabe, M, Honda, C, Inui, F, Rasmussen, F, Huibregtse, BM, Boomsma, DI, Sorensen, TIA, Kaprio, J, and Silventoinen, K

Abstract

Human height variation is determined by genetic and environmental factors, but it remains unclear whether their influences differ across birth-year cohorts. We conducted an individual-based pooled analysis of 40 twin cohorts including 143,390 complete twin pairs born 1886-1994. Although genetic variance showed a generally increasing trend across the birth-year cohorts, heritability estimates (0.69-0.84 in men and 0.53-0.78 in women) did not present any clear pattern of secular changes. Comparing geographic-cultural regions (Europe, North America and Australia, and East Asia), total height variance was greatest in North America and Australia and lowest in East Asia, but no clear pattern in the heritability estimates across the birth-year cohorts emerged. Our findings do not support the hypothesis that heritability of height is lower in populations with low living standards than in affluent populations, nor that heritability of height will increase within a population as living standards improve.

Published
2016

37. Genetic and environmental influences on height from infancy to early adulthood: An individual-based pooled analysis of 45 twin cohorts

Author

Jelenkovic, A, Sund, R, Hur, Y-M, Yokoyama, Y, Hjelmborg, JVB, Moller, S, Honda, C, Magnusson, PKE, Pedersen, NL, Ooki, S, Aaltonen, S, Stazi, MA, Fagnani, C, D'Ippolito, C, Freitas, DL, Maia, JA, Ji, F, Ning, F, Pang, Z, Rebato, E, Busjahn, A, Kandler, C, Saudino, KJ, Jang, KL, Cozen, W, Hwang, AE, Mack, TM, Gao, W, Yu, C, Li, L, Corley, RP, Huibregtse, BM, Derom, CA, Vlietinck, RF, Loos, RJF, Heikkila, K, Wardle, J, Llewellyn, CH, Fisher, A, McAdams, TA, Eley, TC, Gregory, AM, He, M, Ding, X, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Tarnoki, AD, Tarnoki, DL, Knafo-Noam, A, Mankuta, D, Abramson, L, Burt, SA, Klump, KL, Silberg, JL, Eaves, LJ, Maes, HH, Krueger, RF, McGue, M, Pahlen, S, Gatz, M, Butler, DA, Bartels, M, van Beijsterveldt, TCEM, Craig, JM, Saffery, R, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Martin, NG, Medland, SE, Montgomery, GW, Swan, GE, Krasnow, R, Tynelius, P, Lichtenstein, P, Haworth, CMA, Plomin, R, Bayasgalan, G, Narandalai, D, Harden, KP, Tucker-Drob, EM, Spector, T, Mangino, M, Lachance, G, Baker, LA, Tuvblad, C, Duncan, GE, Buchwald, D, Willemsen, G, Skytthe, A, Kyvik, KO, Christensen, K, Oncel, SY, Aliev, F, Rasmussen, F, Goldberg, JH, Sorensen, TIA, Boomsma, DI, Kaprio, J, Silventoinen, K, Jelenkovic, A, Sund, R, Hur, Y-M, Yokoyama, Y, Hjelmborg, JVB, Moller, S, Honda, C, Magnusson, PKE, Pedersen, NL, Ooki, S, Aaltonen, S, Stazi, MA, Fagnani, C, D'Ippolito, C, Freitas, DL, Maia, JA, Ji, F, Ning, F, Pang, Z, Rebato, E, Busjahn, A, Kandler, C, Saudino, KJ, Jang, KL, Cozen, W, Hwang, AE, Mack, TM, Gao, W, Yu, C, Li, L, Corley, RP, Huibregtse, BM, Derom, CA, Vlietinck, RF, Loos, RJF, Heikkila, K, Wardle, J, Llewellyn, CH, Fisher, A, McAdams, TA, Eley, TC, Gregory, AM, He, M, Ding, X, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Tarnoki, AD, Tarnoki, DL, Knafo-Noam, A, Mankuta, D, Abramson, L, Burt, SA, Klump, KL, Silberg, JL, Eaves, LJ, Maes, HH, Krueger, RF, McGue, M, Pahlen, S, Gatz, M, Butler, DA, Bartels, M, van Beijsterveldt, TCEM, Craig, JM, Saffery, R, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Martin, NG, Medland, SE, Montgomery, GW, Swan, GE, Krasnow, R, Tynelius, P, Lichtenstein, P, Haworth, CMA, Plomin, R, Bayasgalan, G, Narandalai, D, Harden, KP, Tucker-Drob, EM, Spector, T, Mangino, M, Lachance, G, Baker, LA, Tuvblad, C, Duncan, GE, Buchwald, D, Willemsen, G, Skytthe, A, Kyvik, KO, Christensen, K, Oncel, SY, Aliev, F, Rasmussen, F, Goldberg, JH, Sorensen, TIA, Boomsma, DI, Kaprio, J, and Silventoinen, K

Abstract

Height variation is known to be determined by both genetic and environmental factors, but a systematic description of how their influences differ by sex, age and global regions is lacking. We conducted an individual-based pooled analysis of 45 twin cohorts from 20 countries, including 180,520 paired measurements at ages 1-19 years. The proportion of height variation explained by shared environmental factors was greatest in early childhood, but these effects remained present until early adulthood. Accordingly, the relative genetic contribution increased with age and was greatest in adolescence (up to 0.83 in boys and 0.76 in girls). Comparing geographic-cultural regions (Europe, North-America and Australia, and East-Asia), genetic variance was greatest in North-America and Australia and lowest in East-Asia, but the relative proportion of genetic variation was roughly similar across these regions. Our findings provide further insights into height variation during childhood and adolescence in populations representing different ethnicities and exposed to different environments.

Published
2016

38. Twin's Birth-Order Differences in Height and Body Mass Index From Birth to Old Age: A Pooled Study of 26 Twin Cohorts Participating in the CODATwins Project

Author

Yokoyama, Y, Jelenkovic, A, Sund, R, Sung, J, Hopper, JL, Ooki, S, Heikkila, K, Aaltonen, S, Tarnoki, AD, Tarnoki, DL, Willemsen, G, Bartels, M, van Beijsterveldt, TCEM, Saudino, KJ, Cutler, TL, Nelson, TL, Whitfield, KE, Wardle, J, Llewellyn, CH, Fisher, A, He, M, Ding, X, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Song, Y-M, Yang, S, Lee, K, Jeong, H-U, Knafo-Noam, A, Mankuta, D, Abramson, L, Burt, SA, Klump, KL, Ordonana, JR, Sanhez-Romera, JF, Colodro-Conde, L, Harris, JR, Brandt, I, Nilsen, TS, Craig, JM, Saffery, R, Ji, F, Ning, F, Pang, Z, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Martin, NG, Medland, SE, Montgomery, GW, Magnusson, PKE, Pedersen, NL, Aslan, AKD, Tynelius, P, Haworth, CMA, Plomin, R, Rebato, E, Rose, RJ, Goldberg, JH, Rasmussen, F, Hur, Y-M, Sorensen, TIA, Boomsma, DI, Kaprio, J, Silventoinen, K, Yokoyama, Y, Jelenkovic, A, Sund, R, Sung, J, Hopper, JL, Ooki, S, Heikkila, K, Aaltonen, S, Tarnoki, AD, Tarnoki, DL, Willemsen, G, Bartels, M, van Beijsterveldt, TCEM, Saudino, KJ, Cutler, TL, Nelson, TL, Whitfield, KE, Wardle, J, Llewellyn, CH, Fisher, A, He, M, Ding, X, Bjerregaard-Andersen, M, Beck-Nielsen, H, Sodemann, M, Song, Y-M, Yang, S, Lee, K, Jeong, H-U, Knafo-Noam, A, Mankuta, D, Abramson, L, Burt, SA, Klump, KL, Ordonana, JR, Sanhez-Romera, JF, Colodro-Conde, L, Harris, JR, Brandt, I, Nilsen, TS, Craig, JM, Saffery, R, Ji, F, Ning, F, Pang, Z, Dubois, L, Boivin, M, Brendgen, M, Dionne, G, Vitaro, F, Martin, NG, Medland, SE, Montgomery, GW, Magnusson, PKE, Pedersen, NL, Aslan, AKD, Tynelius, P, Haworth, CMA, Plomin, R, Rebato, E, Rose, RJ, Goldberg, JH, Rasmussen, F, Hur, Y-M, Sorensen, TIA, Boomsma, DI, Kaprio, J, and Silventoinen, K

Abstract

We analyzed birth order differences in means and variances of height and body mass index (BMI) in monozygotic (MZ) and dizygotic (DZ) twins from infancy to old age. The data were derived from the international CODATwins database. The total number of height and BMI measures from 0.5 to 79.5 years of age was 397,466. As expected, first-born twins had greater birth weight than second-born twins. With respect to height, first-born twins were slightly taller than second-born twins in childhood. After adjusting the results for birth weight, the birth order differences decreased and were no longer statistically significant. First-born twins had greater BMI than the second-born twins over childhood and adolescence. After adjusting the results for birth weight, birth order was still associated with BMI until 12 years of age. No interaction effect between birth order and zygosity was found. Only limited evidence was found that birth order influenced variances of height or BMI. The results were similar among boys and girls and also in MZ and DZ twins. Overall, the differences in height and BMI between first- and second-born twins were modest even in early childhood, while adjustment for birth weight reduced the birth order differences but did not remove them for BMI.

Published
2016

40. 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 traits

Author

Silventoinen, K., Jelenkovic, A., Sund, R., Honda, C., Aaltonen, S., Yokoyama, Y., Tarnoki, AD, Tarnoki, D. L., Ning, F., Ji, F., Pang, Z., Ordoñana, J. R., Sánchez-Romera, J. F., Colodro-Conde, L., Burt, S. A., Klump, K. L., Medland, S. E., Montgomery, G. W., Kandler, C., McAdams, T. A., Eley, T. C., Gregory, A. M., Saudino, K. J., Dubois, L., Boivin, M., Haworth, C. M. A., Plomin, R., Öncel, S. Y., Aliev, F., Stazi, M. A., Fagnani, C., D'Ippolito, C., Craig, J., Saffery, R., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Spector, T., Mangino, M., Lachance, G., Gatz, M., Butler, D. A., Bayasgalan, G., Narandalai, D., Freitas, D. L., Maia, J. A., Harden, K. P., Tucker-Drob, E. M., Christensen, K., Skytthe, A., Kyvik, K. O., Hong, C., Chong, Y., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Cozen, W., Hwang, A. E., Mack, T. M., He, M., Ding, X., Chang, B., Silberg, J. L., Eaves, L. J., Maes, H. H., Cutler, T. L., Hopper, J. L., Aujard, K., Magnusson, P. K. E., Pedersen, N. L., Aslan, A. K. D., Song, Y.- M., Yang, S., Lee, K., Baker, L. A., Tuvblad, C., Bjerregaard-Andersen, M., Beck-Nielsen, H., Sodemann, M., Heikkilä, K., Tan, Q., Zhang, D., Swan, G. E., Krasnow, R., Jang, K. L., Knafo-Noam, A., Mankuta, D., Abramson, L., Lichtenstein, P., Krueger, R. F., McGue, M., Pahlen, S., Tynelius, P., Duncan, G. E., Buchwald, D., Corley, R. P., Huibregtse, B. M., Nelson, T. L., Whitfield, K. E., Franz, C. E., Kremen, W. S., Lyons, M. J., Ooki, S., Brandt, I., Nilsen, T. S., Inui, F., Watanabe, M., Bartels, M., van Beijsterveldt, T. C. E. M., Wardle, J., Llewellyn, C. H., Fisher, A., Rebato, E., Martin, N. G., Iwatani, Y., Hayakawa, K., Rasmussen, F., Sung, J., Harris, J. R., Willemsen, G., Busjahn, A., Goldberg, J. H., Boomsma, D. I., Hur, Y. - M., Sørensen, T. I. A., Kaprio, J., Silventoinen, K., Jelenkovic, A., Sund, R., Honda, C., Aaltonen, S., Yokoyama, Y., Tarnoki, AD, Tarnoki, D. L., Ning, F., Ji, F., Pang, Z., Ordoñana, J. R., Sánchez-Romera, J. F., Colodro-Conde, L., Burt, S. A., Klump, K. L., Medland, S. E., Montgomery, G. W., Kandler, C., McAdams, T. A., Eley, T. C., Gregory, A. M., Saudino, K. J., Dubois, L., Boivin, M., Haworth, C. M. A., Plomin, R., Öncel, S. Y., Aliev, F., Stazi, M. A., Fagnani, C., D'Ippolito, C., Craig, J., Saffery, R., Siribaddana, S. H., Hotopf, M., Sumathipala, A., Spector, T., Mangino, M., Lachance, G., Gatz, M., Butler, D. A., Bayasgalan, G., Narandalai, D., Freitas, D. L., Maia, J. A., Harden, K. P., Tucker-Drob, E. M., Christensen, K., Skytthe, A., Kyvik, K. O., Hong, C., Chong, Y., Derom, C. A., Vlietinck, R. F., Loos, R. J. F., Cozen, W., Hwang, A. E., Mack, T. M., He, M., Ding, X., Chang, B., Silberg, J. L., Eaves, L. J., Maes, H. H., Cutler, T. L., Hopper, J. L., Aujard, K., Magnusson, P. K. E., Pedersen, N. L., Aslan, A. K. D., Song, Y.- M., Yang, S., Lee, K., Baker, L. A., Tuvblad, C., Bjerregaard-Andersen, M., Beck-Nielsen, H., Sodemann, M., Heikkilä, K., Tan, Q., Zhang, D., Swan, G. E., Krasnow, R., Jang, K. L., Knafo-Noam, A., Mankuta, D., Abramson, L., Lichtenstein, P., Krueger, R. F., McGue, M., Pahlen, S., Tynelius, P., Duncan, G. E., Buchwald, D., Corley, R. P., Huibregtse, B. M., Nelson, T. L., Whitfield, K. E., Franz, C. E., Kremen, W. S., Lyons, M. J., Ooki, S., Brandt, I., Nilsen, T. S., Inui, F., Watanabe, M., Bartels, M., van Beijsterveldt, T. C. E. M., Wardle, J., Llewellyn, C. H., Fisher, A., Rebato, E., Martin, N. G., Iwatani, Y., Hayakawa, K., Rasmussen, F., Sung, J., Harris, J. R., Willemsen, G., Busjahn, A., Goldberg, J. H., Boomsma, D. I., Hur, Y. - M., Sørensen, T. I. A., and Kaprio, J.

Published
2015

42. Genetic Contribution to Variation in Body Configuration in Belgian Nuclear Families: A Closer Look at Body Lengths and Circumferences

Author

Alaitz Poveda, Jelenkovic, A., Susanne, C., and Rebato, E.

Subjects
Adult, Male, variance components, heritability, anthropometry, factor analysis, genetic correlations, Anthropometry, Genetics, Medical, Body Weight, Middle Aged, Wrist, Nuclear Family, Fingers, Belgium, Arm, Body Composition, Humans, Female, Neck, Aged
Abstract

The purpose of the current study was to evaluate the contribution of genetic factors on body configuration related phenotypes. The sample consisted of 119 Belgian nuclear families including 231 males and 229 females. Factor analysis with varimax rotation was carried out to analyse 13 length and circumference measures and the resulting two synthetic traits (LF and CF; linear and circumference factors, respectively) were used as summary variables. Univariate quantitative genetic analysis indicated that variation in anthropometric as well as in synthetic traits was significantly dependent on additive genetic effects, with heritabilities ranging from 0.55 to 0.88. Narrow sense heritability estimates were higher for measurements principally characterizing skeletal mass than in variables that also involve soft-tissues. Sex, age and their interactions explained 11-67% of the total phenotypic variance. This report also examined the covariations between pairs of anthropometric and synthetic traits (length measurements and LF vs. height; circumference measures and CF vs. weight and BMI; LF vs. CF). Significant genetic correlations among all the studied traits (except for middle finger length vs. height) confirmed the influence of pleiotropy on genetic determination of these phenotypes. Bivariate analysis showed that pleiotropic effects had a great influence in determining body traits variation within body length measurements, as well as between body circumferences and weight or BMI. In relation to the two synthetic traits, even the variation of body lengths and circumferences was highly determined by genetic factors, shared genetic influences were unlikely to explain much of the observed variation between LF and CF. The results of the present study allow us to conclude that in this population body configuration related traits are subject to a strong genetic control and that shared genes also contribute to this genetic structure.

Published
2010

47. Bioethics: Global and Societal aspects

Author

Susanne, Charles, Cambron, A., Casado, M., Cascais, F., Rebato, E., Salona, M., Sanchez, Antonio Juan, Simitopoulou, K., Szente, M., Toth, Jeno, Xirotiris, N., Susanne, Charles, Cambron, A., Casado, M., Cascais, F., Rebato, E., Salona, M., Sanchez, Antonio Juan, Simitopoulou, K., Szente, M., Toth, Jeno, and Xirotiris, N.

Abstract

info:eu-repo/semantics/published

Published
2009

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