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Database - Alliance francophone pour l'accouchement respecté (AFAR)

Description of this database

Created on : 26 Jun 2004
Modified on : 02 Dec 2007

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Author(s) :

Woodward J, Kelly SM.

Bibliographical entry (without author) :

A pilot study for a randomised controlled trial of waterbirth versus land birth.
BJOG. 2004 Jun;111(6):537-45.

Year of publication :


Résumé (français) :

Abstract (English):

OBJECTIVES: To assess the feasibility of undertaking an adequately powered multicentre study comparing waterbirth with land birth. To assess whether women are willing to participate in such a trial and whether participation has a negative effect on their birthing experience.

DESIGN: A randomised controlled trial (RCT) with ’preference arm’.

SETTING: District general hospital with 3600 deliveries annually.

POPULATION: Women with no pregnancy complications and no anticipated problems for labour/delivery.

METHODS: Women were recruited and randomised between 36 and 40 weeks of gestation. Comparison of randomised and ’preference arm’ to assess any impact of randomisation on women’s birthing experience.

MAIN OUTCOME MEASURES: Data were collected at delivery concerning the labour, the pool water and baby’s condition at birth and six weeks of age. The main outcome measures are means and standard deviation of cord O(2), CO(2), haemoglobin, haematocrit and base excess; medians and ranges of time to first breathe and cord pH; bacterial growth from pool water samples and neonatal swabs; and maternal satisfaction.

RESULTS: Eighty women participated-60 women were randomised. Twenty women participated in a non-randomised ’preference arm’. The babies randomised to a waterbirth demonstrated a significantly lower umbilical artery pCO(2) (P= 0.003); however, it is recognised that this study is underpowered. Women were willing to participate and randomisation did not appear to alter satisfaction.

CONCLUSION: This small study has shown that a RCT is feasible and demonstrated outcome measures, which can be successfully collected in an average delivery suite.

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Keywords :

alternative birth (waterbirth…) ; evidence-based medicine/midwifery ; maternal age

Author of this record :

Cécile_Loup — 26 Jun 2004

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