Multiple Pregnancy

  • Isabel Stabile
  • Tim Chard
  • Gedis Grudzinskas

Abstract

The rate of twin pregnancy is 6 in 1000 births in Japan, 10 in 1000 in the UK and 66 in 1000 in Nigeria. Most of this variation is due to different rates of dizygotic (DZ) twinning. The rate of monozygotic (MZ) twinning is fairly constant at 3–5 in 1000. Triplets occur once in every 6400 births and quadruplets once in every 512 000 births.

Keywords

Constipation Halothane Nigeria Oxytocin Pregnan 

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Copyright information

© Springer-Verlag London Limited 2000

Authors and Affiliations

  • Isabel Stabile
    • 1
  • Tim Chard
    • 2
  • Gedis Grudzinskas
    • 3
  1. 1.Center for Prevention and Early Intervention PolicyFlorida State UniversityTallahasseeUSA
  2. 2.Reproductive Physiology Laboratory, Department of Obstetrics and GynaecologySt Bartholomew’s HospitalWest Smithfield, LondonUK
  3. 3.Department of Obstetrics and GynaecologyThe Royal London HospitalWhitechapel, LondonUK

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