Differences in twins: The importance of birth order

Young, Bruce K.; Suidan, Joseph S.; Antoine, Clarel; Silverman, F; Lustig, Ilana; Wasserman, Jeannie

doi:10.1016/0002-9378(85)90670-2

Cited by 64 publications

(34 citation statements)

References 8 publications

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“…These findings support the assumption that the multiples is not a significant risk factor for increased perinatal mortality and morbidity in VLBWI. Birth order of multiples has been considered as a prognostic factor because the second borns are at higher risk for malpresentation, hypoxia, and operative delivery (24)(25)(26). With the advent of modern perinatal care, however, most of the complications in the second born twins could be avoided.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Mortality and Morbidity in Multiple versus Singleton Very Low Birth Weight Infants in A Neonatal Intensive Care Unit

et al. 2003

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Multiple births in Korea have been increased recently as a consequence of increased infertility due to advancing maternal age at first birth, and increased use of assisted reproductive technology. Multiples suffer higher mortality and morbidity than singletons. However, it is not clear whether preterm multiple very low birth weight infants (VLBWI) suffer higher mortality and morbidity than comparable singletons. We evaluated 266 singleton and 113 multiple VLBWI to determine whether mortality and morbidity in multiple VLBWI were higher than those in comparable singletons. The rate of in vitro fertilization and cesarean section were significantly higher in multiples than singletons. The total and the adjusted mortality with gestational age and birth weight were not significantly different between the two groups. Maternal age and the incidence of respiratory distress syndrome, patent ductus arteriosus, bronchopulmonary dysplasia, intracranial hemorrhage (grade≥3), cystic periventricular leukomalacia, and retinopathy of prematurity (stage≥3) were not significantly different between the two groups, and the incidence of abnormal brainstem auditory evoked potential was higher among the singletons. These results suggest that multiple VLBWI do not suffer higher mortality or morbidity than comparable singletons.

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Section: Discussionmentioning

confidence: 99%

Comparison of Mortality and Morbidity in Multiple versus Singleton Very Low Birth Weight Infants in A Neonatal Intensive Care Unit

et al. 2003

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“…The second twin is more likely to have lower Apgar scores, less favorable umbilical arterial or venous parameters, a higher incidence of respiratory distress syndrome, a higher need for intubation, and a higher perinatal mortality [5][6][7]. Their disadvantage was attributed to differences in gender, birth weight, chorionicity, presentation, mode of delivery, time interval between births, birth trauma, instrumental delivery, and asphyxia.…”

Section: Introductionmentioning

confidence: 99%

Perinatal Outcome of the Second Twin at a Tertiary Care Center in India

Konar

Sarkar

Paul

2015

J Obstet Gynecol India

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“…As an example of very early experiences we consider the twins' birth order, as it is associated with APGAR scores at young ages (34). We control for birth order in all our regressions, but its inclusion among the regressors has a minor effect on our results.…”

Section: Discussionmentioning

confidence: 99%

The Enduring Impact of Childhood Experience on Mental Health: Evidence Using Instrumented Co-Twin Data

2012

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The question of whether there is a lasting effect of childhood experience on mental health has eluded causal measurement. We draw upon identical twin data and econometric instrumentation to provide an unbiased answer. We find that 55% of a one standard deviation change in mental health due to idiosyncratic experience at age 9 will still be present three years later. Extending the analysis, we find such persistence to vary with age at impact, gender, and mental health sub-categories. This investigation allows us to get a grasp on the degree to which childhood events influence health and socio-economic outcomes by way of their lagged effect on subsequent mental health. A better understanding of the evolution of mental health also helps identifying when mental health issues can be most effectively treated.

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Differences in twins: The importance of birth order

Cited by 64 publications

References 8 publications

Comparison of Mortality and Morbidity in Multiple versus Singleton Very Low Birth Weight Infants in A Neonatal Intensive Care Unit

Comparison of Mortality and Morbidity in Multiple versus Singleton Very Low Birth Weight Infants in A Neonatal Intensive Care Unit

Perinatal Outcome of the Second Twin at a Tertiary Care Center in India

The Enduring Impact of Childhood Experience on Mental Health: Evidence Using Instrumented Co-Twin Data

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