INFLUENCE OF MATERNAL SIZE AND PARITY ON ONSET OF LABOUR IN MULTIPLE PREGNANCY IN MAN

Authors:
  • TMT. McKEOWN
    T. McKEOWN
  • RRR. G. Record
    R. G. Record
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Abstract
SUMMARY The association between duration of gestation and (a) parental height, and (b) mother's parity is examined in 1028 single and 375 twin maternities. With increasing height of mother, duration of gestation increases in multiple pregnancy; the two variables are unrelated in single pregnancy. With increasing parity, duration of gestation increases in multiple pregnancy and decreases slightly in single pregnancy. It is suggested that these observations provide support for the view that the early onset of labour in multiple pregnancy may be due to the size of the foetuses.