National Core Maternity Indicators: PI 06-Caesarean section for selected women giving birth for the first time (2013)

Identifying and definitional attributes

Metadata item type:Indicator
Indicator type:Indicator
Common name:Caesarean section for selected women giving birth for the first time.
Short name:PI 06-Caesarean section for selected women giving birth for the first time (2013)
METeOR identifier:557089
Registration status:Health, Superseded 02/02/2016
Description:The proportion of all women who met the selection criteria* who gave birth by caesarean section.
Rationale:This indicator is used to benchmark practice.
Indicator set:National Core Maternity Indicators (2013) Health, Superseded 02/02/2016

Collection and usage attributes

Population group age from:20 years
Population group age to:34 years
Computation description:

Number of selected women giving birth for the first time who gave birth by caesarean section.

* Selection criteria: Women included are those who gave birth for the first time and who met all of the following criteria for selected women, defined as:

  • aged between 20 and 34 years
  • gestational age at birth between 37 and 41 completed weeks
  • pregnancy has one baby only (singleton)
  • the presentation of the baby is vertex (baby's head was at the cervix)

Excluded are those women who have given birth prior to the current birth or who did not meet the selection criteria.

Computation:100 × (Numerator ÷ Denominator)
Numerator:Number of selected women giving birth for the first time who gave birth by caesarean section.
Numerator data elements:
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 SetBirth event—birth plurality, code N
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Data Element / Data SetProduct of conception—gestational age, completed weeks N[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 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 SetBirth event—birth presentation, code N
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Denominator:All selected women.
Denominator data elements:
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 SetFemale (pregnant)—estimated gestational age, total weeks NN
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Data Element / Data SetBirth event—birth plurality, code N
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Data Element / Data SetBirth event—birth presentation, 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:
  • Year of birth
  • State or territory of birth
  • Hospital annual number of births
  • Remoteness category (from mother's area of usual residence)
  • Indigenous status of mother
  • Hospital sector
  • Patient elected accommodation status
  • Labour/non-labour
Disaggregation data elements:
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—Indigenous status, code N
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Data Element / Data SetEpisode of admitted patient care—patient election status, code N
Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use
Data source type: Administrative by-product data
Data Element / Data SetBirth event—labour onset type, 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 SetPerson—area of usual residence, geographical location code (ASGC 2010) NNNNN
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:Data 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.

Caesarean section is an operative procedure to remove the baby through an incision through a woman’s abdomen and uterus.

Gestational age is a clinical measure of the duration of the pregnancy. For the National Perinatal Data Collection gestational age is reported as completed weeks.

Patient elected accommodation status is available from all jurisdictions from 2006.

Source of definition: Australian Council of Healthcare Standards (ACHS) indicator 1.4, Selected women giving birth for the first time undergoing caesarean section.

Representational attributes

Representation class:Percentage
Data type:Real
Unit of measure:Person
Format:N[NN.N]

Data source attributes

Data sources:
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:

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