Body Composition, Smoking, and Spontaneous Dizygotic Twinning

Hoekstra, Chantal; Willemsen, Gonneke; Beijsterveldt, Catharina E. M. van; Lambalk, C.B.; Montgomery, G. W.; Boomsma, D.I.

doi:10.1097/ogx.0b013e3181e59df5

Cited by 10 publications

(16 citation statements)

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“…Mothers of dizygotic twins are known to have a higher BMI than mothers of monozygotic twins and singletons. [32][33][34] In our sample we did not find a difference in BMI between siblings of monozygotic and dizygotic twins, but this remains a question to be elucidated in larger studies. A study in Finnish adolescent twins reported that 17-year-old twin boys had reached the same height as singletons but still had a lower BMI.…”

Section: Discussioncontrasting

confidence: 55%

Body Size of Twins Compared with Siblings and the General Population: From Birth to Late Adolescence

Burk

Bartels

Boomsma

et al. 2010

The Journal of Pediatrics

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Section: Discussioncontrasting

confidence: 55%

Body Size of Twins Compared with Siblings and the General Population: From Birth to Late Adolescence

Burk

Bartels

Boomsma

et al. 2010

The Journal of Pediatrics

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“…It is likely that the latter increase reflects the introduction of IVF. The causes behind the prior decrease are less obvious, but may reflect secular changes in maternal age, parity, smoking, or BMI, factors all known to be associated with DZ twinning (Hoekstra et al, 2008(Hoekstra et al, , 2010. After a gradual adoption of the single embryo transfer (SET) policy in Sweden (rate of SET was 1.5% in 1991, 30.6% in 2002, 54.3% in 2003, and 67.4% in 2004), a marked decrease of IVF-induced multiple births, from 35% in 1991 to less than 5% in 2005 (Karlstrom & Bergh, 2007), has occurred.…”

Section: Changes In Zygosity Proportionsmentioning

confidence: 99%

The Swedish Twin Registry: Establishment of a Biobank and Other Recent Developments

et al. 2012

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The Swedish Twin Registry (STR) today contains more than 194,000 twins and more than 75,000 pairs have zygosity determined by an intra-pair similarity algorithm, DNA, or by being of opposite sex. Of these, approximately 20,000, 25,000, and 30,000 pairs are monozygotic, same-sex dizygotic, and opposite-sex dizygotic pairs, respectively. Since its establishment in the late 1950s, the STR has been an important epidemiological resource for the study of genetic and environmental influences on a multitude of traits, behaviors, and diseases. Following large investments in the collection of biological specimens in the past 10 years we have now established a Swedish twin biobank with DNA from 45,000 twins and blood serum from 15,000 twins, which effectively has also transformed the registry into a powerful resource for molecular studies. We here describe the main projects within which the new collections of both biological samples as well as phenotypic measures have been collected. Coverage by year of birth, zygosity determination, ethnic heterogeneity, and influences of in vitro fertilization are also described.

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“…A hospital-based study conducted in United States also concluded that the odds of dizygotic twinning was increased by 1.66 times in women taller than 165 cm compared to women shorter than 157.5 cm (Reddy et al, 2005). A study based on the Netherland twin registry concluded likewise (Hoekstra et al, 2010). The biological mechanism by which maternal height affects incidence of multiple pregnancy has not been described well.…”

Section: Figurementioning

confidence: 99%

Multiple Births in Sub-Saharan Africa: Epidemiology, Postnatal Survival, and Growth Pattern

Gebremedhin

2014

Twin Res Hum Genet

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The study endeavored to assess the epidemiology, postnatal survival, and growth pattern of multiple births in Sub-Saharan Africa (SSA). It was based on the data of 25 demographic health surveys conducted in the subcontinent since 2008. The records of 213,889 children born in the preceding 59 months of the surveys were included. The multiple birth rate was computed as the number of multiple confinements per 1,000 births. Factors associated with multiple births were identified using logistic regression and their survival pattern was assessed using the Kaplan-Meier method. The multiple birth rate was 17.1 (95% confidence interval: 17.7-16.6) and showed considerable variation across the 25 countries included in the study. Odds of multiple births were significantly increased with advanced maternal age, parity, and maternal height but not with wealth index, age at first birth, and month of birth. At the end of the fourth year of age, the cumulative survival probability was as low as 0.77 in multiple births as compared to 0.93 in their counterparts. The odds of neonatal, infant and under-five mortality were 5.55, 4.39, and 3.72 times increased in multiple births, respectively. Multiple births tend to be malnourished than singletons and the odds of wasting, stunting, and underweight were 1.31, 1.83, and 1.73 times raised, consecutively. Nevertheless, multiple births regain their weight-for-age (WFA) and height-for-age (HFA) deficits by the end of the fourth year of age. Counseling pregnant mothers with multiple gestation to give birth at a health institution and providing close medical follow-up during and after the neonatal period can improve the survival of multiple births.

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Body Composition, Smoking, and Spontaneous Dizygotic Twinning

Cited by 10 publications

References 0 publications

Body Size of Twins Compared with Siblings and the General Population: From Birth to Late Adolescence

Body Size of Twins Compared with Siblings and the General Population: From Birth to Late Adolescence

The Swedish Twin Registry: Establishment of a Biobank and Other Recent Developments

Multiple Births in Sub-Saharan Africa: Epidemiology, Postnatal Survival, and Growth Pattern

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