Obstetrics – instrumental deliveries rate

Metric

The proportion of deliveries that were carried out using an instrument.

Numerator

Any spell with a secondary procedure of one of the following OPCS codes:

  • R19 Breech extraction delivery
  • R21 Forceps cephalic delivery
  • R22 Vacuum delivery

Denominator

Any spell with a primary procedure of one of the following OPCS codes:

  • R17 Elective caesarean delivery
  • R18 Other caesarean delivery
  • R19 Breech extraction delivery
  • R20 Other breech delivery
  • R21 Forceps cephalic delivery
  • R22 Vacuum delivery
  • R23 Cephalic vaginal delivery with abnormal presentation of head at delivery without instrument
  • R24 Normal delivery
  • R25 Other methods of delivery

Equivalent to “Delivery” procedure group in the DFI tools

Data Source

SUS – CDS

Time frame

April 2010 – March 2011

Basis

Acute trust

Statistical methods used

Indirect standardisation adjusting for maternal age.

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