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Prenatal Weight Gain and the Birthweight of Triplets

Published online by Cambridge University Press:  01 August 2014

B. Luke ,
E. Bryan ,
C. Sweetland ,
S. Leurgans  and
L. Keith
B. Luke*
Affiliation:
Division of Health Services Research, Department of Obstetrics and Gynecology, and Centre for Human Growth and Development, University of Michigan Medical School, Ann Arbor, Michigan
E. Bryan
Affiliation:
Multiple Births Foundation, London, United Kingdom
C. Sweetland
Affiliation:
Multiple Births Foundation, London, United Kingdom
S. Leurgans
Affiliation:
Section of Biostatistics, Department of Preventive Medicine, Rush Medical College, Rush-Presbyterian-St Luke's Medical Center, Chicago, Illinois
L. Keith
Affiliation:
Department of Obstetrics and Gynecology, Northwestern University Medical Schooland Prentice Women's Hospital and Maternity Center, Chicago, Illinois
*
Dept Obstetrics and Gynecology, University of Michigan Medical School, F4866 Mott, 1500 East Medical Center Drive, Ann Arbor, Michigan 48109-0264, USA

Abstract

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The objective of this study was to evaluate the association between maternal factors, including rates of gestational weight gain before and after 24 weeks' gestation, and adequacy of intrauterine growth for gestational age at birth of triplets, as a mean Z-score of the triplet set. The study design was a retrospective, anonymous, pilot telephone survey of mothers of triplets and an historical cohort analysis of their prenatal weight gain records. The statistical analyses performed included multiple regression analysis to formulate a model for mean triplet Z-score (a measure of birthweight-for-gestational age) and analysis of variance to confirm and simplify the components of this model. Factors significant in the final model and their beta coefficients included weeks' gestation (-0.124, p <0.0001), rate of gain before 24 weeks' gestation (0.606, p = 0.005), and induced conception (−0.404, p = 0.01). Rate of gain > 1.5 lbs/week before 24 weeks was significant in the analysis of variance (p = 0.009). Better intrauterine growth for gestational age is achieved in triplet gestations with maternal weight gains of >1.5 lbs/week before 24 weeks' gestation.

Keywords

Triplet birthweightMaternal weight gain
Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 44 , Issue 2 , April 1995 , pp. 93 - 101
Copyright
Copyright © The International Society for Twin Studies 1995

References

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