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The Normal Birth Rate European Perinatal Epidemiology Network 3 rd October 2003

The Normal Birth Rate European Perinatal Epidemiology Network 3 rd October 2003. Normal Birth Rate. Why do we want to know it? What is it? How did we calculate it?. Why do we want to know the Normal Birth Rate?. Digression BirthChoiceUK – Helping women choose where to give birth.

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The Normal Birth Rate European Perinatal Epidemiology Network 3 rd October 2003

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  1. The Normal Birth Rate • European Perinatal Epidemiology Network • 3rd October 2003 BirthChoiceUK.com

  2. Normal Birth Rate • Why do we want to know it? • What is it? • How did we calculate it? BirthChoiceUK.com

  3. Why do we want to know the Normal Birth Rate? • Digression • BirthChoiceUK – Helping women choose where to give birth. • A non-commercial website which explains the choices available to pregnant women. • Presents the maternity statistics for every maternity unit in the UK. • Main statistics • Induction rate • Caesarean rate • Instrumental delivery rate • Normal birth rate BirthChoiceUK.com

  4. Example of BirthChoiceUK statistics webpage BirthChoiceUK.com

  5. Are pregnant women interested in these statistics? • Yes, yes and yes. • The site has no advertising budget and relies on word-of-mouth. • Yet it has been sitting on a 100% p.a. growth curve for two years. BirthChoiceUK.com

  6. Also provides for the health professional. • Digression – continued • As well as local statistics we also present national aggregates. • These can be found at • www.BirthChoiceUK.com/Professionals • A couple of examples are:- BirthChoiceUK.com

  7. Caesarean Time Series BirthChoiceUK.com

  8. Normal Birth Time Series BirthChoiceUK.com

  9. What is Normal Birth? • No single definition • Will exclude some of the following:- • Caesarean section • Induction • Forceps/Ventouse • Epidural • Episiotomy • Acceleration • Pethidine • Continuous monitoring For purely pragmatic reasons BirthChoiceUK takes birth which does not involve any of these procedures. BirthChoiceUK.com

  10. How we calculated the Normal Birth Rate. • We didn’t! • For Scotland, the Information and Statistics Division (ISD). • Sadly, neither Wales or Northern Ireland are yet in a position to calculate the normal birth rate. • For the English data we approached the Department of Health Statistics Division. • Introducing Mary Grinsted from the Department of Health Statistics Division. BirthChoiceUK.com

  11. How the Normal Birth Rate is calculated. • Hospital Episode Statistics(HES)data • NHS Maternity Statistics Bulletin, England, 2001-02 • www.doh.gov.uk/public/sb0309.htm • Coverage 70% (14% for home deliveries) • Data is cleaned by field and hospital for coding and data transport errors BirthChoiceUK.com

  12. How the Normal Birth Rate is calculated. • Procedure Code OCPS R24 • ‘Normal Delivery’ • BUT … BirthChoiceUK.com

  13. How the Normal Birth Rate is calculated. • Many so called ‘Normal Deliveries’ were coded along with • Caesarean sections, • Forceps, • Episiotomies • Blood Transfusions • and even heart attacks!! • What is the definition of Normal Delivery ? BirthChoiceUK.com

  14. How the Normal Birth Rate is calculated. • Opted to use HES records that had • Spontaneous onset and • Spontaneous delivery and • No mention of any procedural code (other than Normal Delivery!) and • No General, spinal or epidural anaesthetics • Provided this raw data to BirthChoiceUK for cleaning BirthChoiceUK.com

  15. How the Normal Birth Rate is calculated. They looked at the data for each hospital individually, and filtered out those hospitals that were known to submit odd or duplicated data in the fields used. The results, the normal birth rate by hospital, can be seen on the BirthChoiceUK.com website. www.BirthChoiceUK.com BirthChoiceUK.com

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