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National Core Maternity Indicators: PI 03-Episiotomy for women giving birth for the first time and giving birth vaginally (2013)

Identifying and definitional attributes

Metadata item type:Help on this termIndicator
Indicator type:Help on this termIndicator
Common name:Help on this termEpisiotomy for women giving birth for the first time and giving birth vaginally
Short name:Help on this termPI 03-Episiotomy for women giving birth for the first time and giving birth vaginally (2013)
METeOR identifier:Help on this term557083
Registration status:Help on this termHealth, Superseded 02/02/2016
Description:Help on this termAmong women who had their first baby, (a) the proportion who received an episiotomy during a non-instrumental vaginal birth, and (b) the proportion who received an episiotomy during an instrumental vaginal birth.
Rationale:Help on this termThis indicator is used to benchmark practice.
Indicator set:Help on this termNational Core Maternity Indicators (2013) Health, Superseded 02/02/2016

Collection and usage attributes

Computation description:Help on this term

Among women who had their first baby:

(a) the proportion who received an episiotomy during a non-instrumental vaginal birth, and

(b) the proportion who received an episiotomy during an instrumental vaginal birth.

Computation:Help on this term100 × (Numerator ÷ Denominator)
Numerator:Help on this term

(a) The number of women having their first baby who had an episiotomy during a vaginal birth where instruments to assist the birth were not used, and

(b) The number of women having their first baby who had an episiotomy during an instrumental vaginal birth.

Numerator data elements:Help on this term
Data Element / Data SetBirth event—birth method, code N
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Data Element / Data SetFemale—parity, total N[N]
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Data Element / Data SetFemale (mother)—postpartum perineal status, code N
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Denominator:Help on this term

(a) The number of women having their first baby who had a vaginal birth during which instruments were not used, and

(b) The number of women having their first baby who gave birth vaginally and had an instrumental vaginal birth.

Denominator data elements:Help on this term
Data Element / Data SetBirth event—birth method, code N
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Data Element / Data SetFemale—parity, total N[N]
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Disaggregation:Help on this term
  • Year of birth
  • State or territory of birth
  • Hospital annual number of births
  • Hospital sector
Disaggregation data elements:Help on this term
Data Element / Data SetEstablishment—organisation identifier (Australian), NNX[X]NNNNN
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Data Element / Data SetBirth event—state/territory of birth, code N
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Data Element / Data SetPerson—date of birth, DDMMYYYY
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Data Element / Data SetData Element
Hospital annual number of births
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Comments:Help on this termData elements are from the Perinatal national minimum data set (NMDS) or have been provided as voluntary non-standardised items by the states and territories. Records with data that are missing, not stated or not interpretable have been included in the denominator.

A birth is defined as the event in which a baby comes out of the uterus after a pregnancy of at least 20 weeks gestation or weighing 400 grams or more.

Included are those women who gave birth for the first time and had a vaginal birth, with or without instruments. Women who had a multiple birth are included if this was the first time they had given birth.

Excluded are those who did not give birth for the first time or gave birth by caesarean section.

Instrumental vaginal birth means that the baby was delivered with the use of forceps or vacuum extraction.

Source of definition: Core Maternity Indicator Project, Indicator 4.

Representational attributes

Representation class:Help on this termPercentage
Data type:Help on this termReal
Unit of measure:Help on this termPerson
Format:Help on this termN[NN.N]

Data source attributes

Data sources:Help on this term
Data SourceAIHW National Perinatal Data Collection (NPDC)
Frequency
Calendar years ending 31 December each year
Data custodian

Australian Institute of Health and Welfare


Relational attributes

Related metadata references:Help on this term

Has been superseded by National Core Maternity Indicators: PI 03—Episiotomy for women giving birth for the first time and giving birth vaginally (2016) Health, Superseded 06/09/2018

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