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The repetition of spontaneous preterm labour
Author(s) -
CARRHILL ROY A.,
HALL MARION H.
Publication year - 1985
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.1985.tb03071.x
Subject(s) - obstetrics , abortion , gestation , preterm labour , pregnancy , medicine , preterm labor , biology , genetics
Summary. The likelihood of repetition of preterm birth after spontaneous onset of labour has been studied in 6572 reproductive careers after excluding stillbirths. multiple births. all careers in which any labour had been induced, and all careers in which the gestation length in any pregnancy was not certain. The analysis was controlled not only for pregnancy number, but for the nature of the reproductive outcomes. In most reproductive xqucnces thcrc was a weak correlation bctween the gestation in one pregnancy and subsequent ones. The risk of preterm birth was tripled after one previous preterm birth with or without a preceding abortion, and increased six‐fold after two previous preterin births. However, the attributable risk was low, and most multiparae with preterm births did not have a previous history.