Table I.1aModel probabilities for the immediate birth (induction of labour) strategy in women with gestational hypertension

OutcomeImmediate birthDistributionAlphaBetaSource
Probability of induction onset of labour97.00%Beta36611Koopmans et al.126
Probability of spontaneous onset of labour2.70%Beta10367Koopmans et al.126
Probability of planned caesarean section0.30%Beta1376Koopmans et al.126
Probability of vaginal birth72.70%Beta273104Koopmans et al.126
Probability of assisted vaginal birth13.30%Beta50327Koopmans et al.126
Probability of emergency caesarean section after failed induction14.00%Beta54323Koopmans et al.126
Probability of severe disease needing anticonvulsant medication6.00%Beta24353Koopmans et al.126
Probability of admission to HDU99.00%Beta3752GDG
Probability of admission to ICU1.00%Beta4373GDG
Probability of neonatal admission24.00%Beta90287Koopmans et al.126
Probability of admission to neonatal medium care18.00%Beta68309Koopmans et al.126
Probability of admission to neonatal HDU3.00%Beta12365Koopmans et al.126
Probability of admission to NICU3.00%Beta10367Koopmans et al.126
Neonatal average length of stay when admitted (days)3DeterministicKoopmans et al.126
Proportion needing oxytocin50%DeterministicGDG and Blix et al.244

HDU = high-dependency unit; ICU = intensive care unit; NICU = neonatal intensive care unit

From: Appendix I, Economic analysis of immediate birth (induction of labour) versus expectant management in women with mild to moderate gestational hypertension after 37 weeks of gestation

Cover of Hypertension in Pregnancy
Hypertension in Pregnancy: The Management of Hypertensive Disorders During Pregnancy.
NICE Clinical Guidelines, No. 107.
National Collaborating Centre for Women's and Children's Health (UK).
London: RCOG Press; 2010 Aug.
Copyright © 2011, Royal College of Obstetricians and Gynaecologists.

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