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Low saliva progesterone concentrations are associated with spontaneous early preterm labour (before 34 weeks of gestation) in women at increased risk of preterm delivery

Research output: Contribution to journalArticle

G. C. L. Lachelin, H. H. G. McGarrigle, P. T. Seed, A. Briley, A. H. Shennan, L. Poston

Original languageEnglish
Pages (from-to)1515 - 1519
Number of pages5
JournalBJOG: An International Journal of Obstetrics and Gynaecology
Issue number11
Publication statusPublished - Oct 2009

King's Authors


Saliva progesterone and oestriol concentrations were determined weekly from 24 weeks of gestation in women at increased risk of preterm delivery. Samples were analysed from 28 women with spontaneous onset of labour and delivery before 37 weeks of gestation, and 64 who delivered at term. Saliva progesterone was lower in the 12 women delivering before 34 weeks than in those delivering later, between 34 and 37 weeks (P = 0.007) or at term (P = 0.009). Measurement of saliva progesterone may be of value in the prediction of early preterm labour and in determining which women might benefit from progesterone supplementation.

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