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The Influence of Birth Injuries in First-Born and Second-Born Twins

Published online by Cambridge University Press:  01 August 2014

A. Asaka ,
S. Ooki  and
K. Yamada
A. Asaka*
Affiliation:
Department of Health Sciences, Yamanshi Medical College, Japan
S. Ooki
Affiliation:
Department of Mental Health, Tokyo University, Japan
K. Yamada
Affiliation:
Department of Nursing, Sapporo Medical College, Japan
*
Department of Health Sciences, Yamanashi Medical College, Tamaho, Nakakoma, Japan, 409-38

Abstract

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This study showed that biological handicap with many complications at birth was much more recognized in the second-born than in the first-born twins. One of the most prominent intrapair differences was, for example, the weight at birth. However, intrapair differences, which were observed also in other physical measurements, diminished gradually with age. Moreover, as for intellectual ability, which was represented by the scores of the entrance examination test or standard achievement test, no remarkable influences due to handicap of the second-born were identified. Thus, it was concluded that the biological handicap seen in the second-born twin at birth did not give any significant effect on later development.

Keywords

Birth injuryBirth orderDevelopmentTwins
Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 39 , Issue 3 , July 1990 , pp. 409 - 412
Copyright
Copyright © The International Society for Twin Studies 1990

References

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