Prediction of recurrence of hypertensive disorders of pregnancy between 34 and 37 weeks of gestation: a retrospective cohort study
Article first published online: 2 APR 2012
© 2012 The Authors BJOG An International Journal of Obstetrics and Gynaecology © 2012 RCOG
BJOG: An International Journal of Obstetrics & Gynaecology
Volume 119, Issue 7, pages 840–847, June 2012
How to Cite
van Oostwaard, M., Langenveld, J., Bijloo, R., Wong, K., Scholten, I., Loix, S., Hukkelhoven, C., Vergouwe, Y., Papatsonis, D., Mol, B. and Ganzevoort, W. (2012), Prediction of recurrence of hypertensive disorders of pregnancy between 34 and 37 weeks of gestation: a retrospective cohort study. BJOG: An International Journal of Obstetrics & Gynaecology, 119: 840–847. doi: 10.1111/j.1471-0528.2012.03312.x
- Issue published online: 10 MAY 2012
- Article first published online: 2 APR 2012
- Accepted 11 February 2012. Published Online 2 April 2012.
- small for gestational age
Please cite this paper as: van Oostwaard M, Langenveld J, Bijloo R, Wong K, Scholten I, Loix S, Hukkelhoven C, Vergouwe Y, Papatsonis D, Mol B, Ganzevoort W. Prediction of recurrence of hypertensive disorders of pregnancy between 34 and 37 weeks of gestation: a retrospective cohort study. BJOG 2012;119:840–847.
Objective To assess the recurrence risk of late-preterm hypertensive disease of pregnancy, and to determine whether potential risk factors are predictive.
Design Retrospective cohort study.
Setting Three secondary and three tertiary care hospitals in the Netherlands.
Population We identified women with a hypertensive disorder in the index pregnancy and delivery at 34–37 weeks of gestation, between January 2000 and December 2002.
Methods Data were extracted from medical files and women were approached for additional information on subsequent pregnancies. An adverse outcome was defined as the recurrence of a hypertensive disorder in the next subsequent pregnancy.
Main outcome measures Absolute risk of recurrence and a prediction model containing demographic and clinical factors predictive for adverse outcome.
Results We identified 425 women who matched the criteria, of whom 351 could be contacted. Of these women, 189 (54%) had had a subsequent pregnancy. Hypertensive disorders recurred in 96 (51%, 95% CI 43–58%) women, of whom 17 (9%, 95% CI 5–14%) delivered again before 37 weeks of gestation. Chronic hypertension and maternal age were the strongest predictors for recurrence. Women undergoing recurrence had a nine-fold chance of developing chronic hypertension (37% versus 6%, OR 8.7, 95% CI 3.3–23).
Conclusions Women with hypertensive disorders and late-preterm delivery have a 50% chance of recurrence, but only a 9% chance of recurrence resulting in delivery before 37 weeks of gestation. Women with chronic hypertension are prone to develop recurrence, and women with a recurrence more often developed chronic hypertension.