References 1. World Health Organization International Collaborative Study of Hypertensive Disorders of Pregnancy (1988). Geographic variation in the incidence of hypertension in pregnancy. Am J Obstet Gynecol, 158(1):80-3. 2. Department of Health. (1996) Confidential Enquiry into stillbirths and deaths in infancy. London: Department of Health. 3. Rosenberg K, Twaddle S. (1990) Screening and surveillance of pregnancy hypertension – an economic approach to the use of daycare. Bailliere’s Clin Obstetrics and Gynaecology, 4:89-107. 4. Anthony J. (1992) Improving antenatal care: the role of the antenatal assessment unit. Health Trends; 24:123-5 5. Bouvier-Colle MH, Salanave B, Ancel PY (1996) Obstetric patients treated in intensive care units and maternal mortality. European journal of Obstetric and Gynaecological Reproductive Biology. 65:121-5 6. Douglas KA, Redman CW. (1994) Eclampsia in the United Kingdom. BMJ; 309(6966):1395400. 7. The National Institute for Clinical Excellence, The Scottish Executive Health Department, The Department of Health and Social Services and Public Safety Northern Ireland. Why Mothers Die 1997-1999:the fifth report of the Confidential Enquiries into Maternal Deaths in the United Kingdom. London: RCOG Press, 2001 8. Magpie Trial Collaborative Group. Do women with pre-eclampsia, and their babies, benefit from magnesium sulphate? The Magpie Trial: a randomised placebo-controlled trial. Lancet 2002; 359(9321):1877-90. 9. The Magpie Trial Follow-up Study Collaborative Group. (2007)The Magpie Trial: a randomised trial comparing magnesium sulphate with placebo for pre-eclampsia. Outcome for children at 18 months. BJOG 114 (3) 289-299. 10. The Magpie Trial Follow-up Study Collaborative Group. (2007) The Magpie Trial: a randomised trial comparing magnesium sulphate with placebo for pre-eclampsia. Outcome for women at two years. BJOG 114 (3) 300-309. 11. Magpie Trial Follow Up Study Collaborative Group. The Magpie Trial Follow Up Study: outcome after discharge from hospital for women and children recruited to a trial comparing magnesium sulphate with placebo for pre-eclampsia [ISRCTN86938761]. BMC Pregnancy and Childbirth 2004; 4(5). 12. Farrell B, Duley L (2007) Doing the undoable: Magpie Trial long-tem follow-up. The Lancet; 369(9555): 13-14 13. Squires J, Potter L, Bricker D. The ASQ user's guide for the Ages and Stages Questionnaires: a parent-completed, child monitoring system. 2nd edition. Baltimore: Paul Brookes Publishing Co, 1999. 14. Smyth RMD, Duley L, Jacoby A, Elbourne D. Women’s experiences of participating in the Magpie Trial: a UK survey by postal questionnaire. Birth (in press) 15. Bayley N. Manual for the Bayley scales of infant development. 2nd edition. New York: Psychological Corporation, 1993. 2 16. Fooks J, Mutch L, Yudkin P, Johnson A, Elbourne D. Comparing two methods of follow up in a Multicentre randomised trial. Arch Dis Child 76: 369-367 17. Glazener C, Abdalla M, Stroud P et al. Postnatal maternal morbidity: extent, causes, prevention and treatment. BJOG 1995; 102: 282-7 18. Brown S Lumley J. Physical health problems after childbirth and maternal depression at six to seven months postpartum BJOG 2000; vol 107 (10): 1194-1200 19. Murray L, Cooper PJ Effects of postnatal depression on infant development Arch.Dis.Child 1997; 77:99-101 20. Cooper PJ, Murray L Postnatal depression BMJ 1998:; 316: 1884-1886 21. Petterson SM, Burke Albers. A Affects of poverty and maternal depression on early child development. Child Development 2001; vol 72 (6): 1194-1813 22. Dawson G, Ashman S et al. Preschool outcomes of children with depressed mothers Child Development 2000; vol 74 (4): 1158-75 3