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Triplets, birthweig...
Triplets, birthweight, and handedness
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Heikkila, K (author)
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Van Beijsterveldt, CEM (author)
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Haukka, J (author)
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Iivanainen, M (author)
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Saari-Kemppainen, A (author)
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- Silventoinen, K (author)
- Karolinska Institutet
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Boomsma, DI (author)
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Yokoyama, Y (author)
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Vuoksimaa, E (author)
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(creator_code:org_t)
- 2018-05-14
- 2018
- English.
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In: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 1091-6490. ; 115:23, s. 6076-6081
- Related links:
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https://www.pnas.org...
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http://kipublication...
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https://doi.org/10.1...
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Abstract
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- Low birthweight is a risk factor for developmental delay, and is also associated with a higher odds of being left-handed. Likewise, compared with singletons, triplet births encompass an increased probability of left-handedness and developmental delay. In a large study, including triplets from two countries, we studied if left-handedness is associated with birthweight and postnatal development. Triplets have naturally low birthweights, being about 1.5 kg lighter than singletons. In both samples of triplets, we showed that left-handedness was associated with lower birthweight. Left-handers had also smaller infant head circumference and delayed motor development compared with right-handers, but these differences were not evident when controlling for birthweight.
Publication and Content Type
- ref (subject category)
- art (subject category)
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