Birth size and gestational age in opposite-sex twins as compared to same-sex twins: An individual-based pooled analysis of 21 cohorts
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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Birth size and gestational age in opposite-sex twins as compared to same-sex twins : An individual-based pooled analysis of 21 cohorts. / Jelenkovic, Aline; Sund, Reijo; Yokoyama, Yoshie; Hur, Yoon-Mi; Ullemar, Vilhelmina; Almqvist, Catarina; Magnusson, Patrik K. E.; Willemsen, Gonneke; Bartels, Meike; van Beijsterveldt, Catharina E. M.; Bogl, Leonie H.; Pietilainen, Kirsi H.; Vuoksimaa, Eero; Ji, Fuling; Ning, Feng; Pang, Zengchang; Nelson, Tracy L.; Whitfield, Keith E.; Rebato, Esther; Llewellyn, Clare H.; Fisher, Abigail; Bayasgalan, Gombojav; Narandalai, Danshiitsoodol; Bjerregaard-Andersen, Morten; Beck-Nielsen, Henning; Sodemann, Morten; Tarnoki, Adam D.; Tarnoki, David L.; Ooki, Syuichi; Stazi, Maria A.; Fagnani, Corrado; Brescianini, Sonia; Dubois, Lise; Boivin, Michel; Brendgen, Mara; Dionne, Ginette; Vitaro, Frank; Cutler, Tessa L.; Hopper, John L.; Krueger, Robert F.; McGue, Matt; Pahlen, Shandell; Craig, Jeffrey M.; Saffery, Richard; Haworth, Claire M. A.; Plomin, Robert; Knafo-Noam, Ariel; Mankuta, David; Abramson, Lior; Burt, S. Alexandra; Klump, Kelly L.; Vlietinck, Robert F.; Derom, Catherine A.; Loos, Ruth J. F.; Boomsma, Dorret I.; Sorensen, Thorkild I.A.; Kaprio, Jaakko; Silventoinen, Karri.
I: Scientific Reports, Bind 8, Nr. 1, 6300, 01.12.2018, s. 1-8.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Birth size and gestational age in opposite-sex twins as compared to same-sex twins
T2 - An individual-based pooled analysis of 21 cohorts
AU - Jelenkovic, Aline
AU - Sund, Reijo
AU - Yokoyama, Yoshie
AU - Hur, Yoon-Mi
AU - Ullemar, Vilhelmina
AU - Almqvist, Catarina
AU - Magnusson, Patrik K. E.
AU - Willemsen, Gonneke
AU - Bartels, Meike
AU - van Beijsterveldt, Catharina E. M.
AU - Bogl, Leonie H.
AU - Pietilainen, Kirsi H.
AU - Vuoksimaa, Eero
AU - Ji, Fuling
AU - Ning, Feng
AU - Pang, Zengchang
AU - Nelson, Tracy L.
AU - Whitfield, Keith E.
AU - Rebato, Esther
AU - Llewellyn, Clare H.
AU - Fisher, Abigail
AU - Bayasgalan, Gombojav
AU - Narandalai, Danshiitsoodol
AU - Bjerregaard-Andersen, Morten
AU - Beck-Nielsen, Henning
AU - Sodemann, Morten
AU - Tarnoki, Adam D.
AU - Tarnoki, David L.
AU - Ooki, Syuichi
AU - Stazi, Maria A.
AU - Fagnani, Corrado
AU - Brescianini, Sonia
AU - Dubois, Lise
AU - Boivin, Michel
AU - Brendgen, Mara
AU - Dionne, Ginette
AU - Vitaro, Frank
AU - Cutler, Tessa L.
AU - Hopper, John L.
AU - Krueger, Robert F.
AU - McGue, Matt
AU - Pahlen, Shandell
AU - Craig, Jeffrey M.
AU - Saffery, Richard
AU - Haworth, Claire M. A.
AU - Plomin, Robert
AU - Knafo-Noam, Ariel
AU - Mankuta, David
AU - Abramson, Lior
AU - Burt, S. Alexandra
AU - Klump, Kelly L.
AU - Vlietinck, Robert F.
AU - Derom, Catherine A.
AU - Loos, Ruth J. F.
AU - Boomsma, Dorret I.
AU - Sorensen, Thorkild I.A.
AU - Kaprio, Jaakko
AU - Silventoinen, Karri
PY - 2018/12/1
Y1 - 2018/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85045948794&partnerID=8YFLogxK
U2 - 10.1038/s41598-018-24634-2
DO - 10.1038/s41598-018-24634-2
M3 - Journal article
C2 - 29674730
VL - 8
SP - 1
EP - 8
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
IS - 1
M1 - 6300
ER -
ID: 209464872