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A CONTRIBUTION TO THE STUDY OF BIRTH WEIGHT BASED ON AN ITALIAN SAMPLE TWIN DATA

A CONTRIBUTION TO THE STUDY OF BIRTH WEIGHT BASED ON AN ITALIAN SAMPLE TWIN DATA SUMMARY A sample of 237 twin birthB drawn from the records of a maternity clinic has been analysed with regard to birth weight, gestation time, maternal age, parity and survival. The sample was divided into like‐ and unlike‐sex groups. The like‐sex twins have higher mean birth weight and length of gestation with lower mother's age and parity. The correlation of birth weight is 0–765 for like‐sex and 0–792 for unlike‐sex twins. The correlation between male and female twin pairs is 0–826. The number of monozygotic twins in this sample is estimated to be 81 and the estimated weight‐weight correlation for these is 0–815. Comparison has been made possible with similar data on English and Italian twin births published by Karn. The influences of the variables on the survival has been estimated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annals of Human Genetics Wiley

A CONTRIBUTION TO THE STUDY OF BIRTH WEIGHT BASED ON AN ITALIAN SAMPLE TWIN DATA

Annals of Human Genetics , Volume 21 (3) – Mar 1, 1957

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References (17)

Publisher
Wiley
Copyright
Copyright © 1957 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0003-4800
eISSN
1469-1809
DOI
10.1111/j.1469-1809.1972.tb00284.x
Publisher site
See Article on Publisher Site

Abstract

SUMMARY A sample of 237 twin birthB drawn from the records of a maternity clinic has been analysed with regard to birth weight, gestation time, maternal age, parity and survival. The sample was divided into like‐ and unlike‐sex groups. The like‐sex twins have higher mean birth weight and length of gestation with lower mother's age and parity. The correlation of birth weight is 0–765 for like‐sex and 0–792 for unlike‐sex twins. The correlation between male and female twin pairs is 0–826. The number of monozygotic twins in this sample is estimated to be 81 and the estimated weight‐weight correlation for these is 0–815. Comparison has been made possible with similar data on English and Italian twin births published by Karn. The influences of the variables on the survival has been estimated.

Journal

Annals of Human GeneticsWiley

Published: Mar 1, 1957

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