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Table 1 Design of the stepped wedge trial for OASI Care Bundle evaluation

From: A multi-centre quality improvement project to reduce the incidence of obstetric anal sphincter injury (OASI): study protocol

Region

Time

0

1

2

3

4

5

1

 

Roll-out

3280

3280

3280

3280

2

  

Roll-out

3280

3280

3280

3

   

Roll-out

3280

3280

4

    

Roll-out

3280

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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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