Identifying and definitional attributes
|Metadata item type:||Indicator|
Females having their second birth vaginally whose first birth was by caesarean section
|Short name:||PI 15–Females having their second birth vaginally whose first birth was by caesarean section, 2019|
|Registration status:||Health, Standard 19/06/2019|
The proportion of all females having their second birth vaginally whose first birth was by caesarean section.
The indicator is used to benchmark practice for vaginal birth following caesarean section.
|Indicator set:||National Core Maternity Indicators, 2019 Health, Standard 19/06/2019|
Collection and usage attributes
The number of females having their second birth vaginally whose first birth was by caesarean section, divided by the number of females having their second birth whose first birth was by caesarean section, and multiplied by 100.
A birth is defined as an 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 females who are having a singleton for their second birth and whose first birth was by caesarean section.
Excluded are those females whose second birth is a multiple birth, those who are not having their second birth, and those who are having their second birth and whose first birth was a vaginal birth.
100 × (Numerator ÷ Denominator)
The number of females having their second birth vaginally whose first birth was by caesarean section.
|Numerator data elements:|
The number of females having their second birth whose first birth was by caesarean section.
|Denominator data elements:|
|Disaggregation data elements:|
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 excluded from the denominator.
From 2014, Female—caesarean section at most recent previous birth indicator, code N data item was introduced into the Perinatal NMDS. Although not an NMDS/DSS item prior to 2014, data items appear to match the data element developed by NPDDC, Female—caesarean section indicator (last previous birth) code N. As a result, data from Victoria were not available in 2007 to 2009, and Western Australia in 2013.
Modified from Australian Council on Healthcare Standards (ACHS) Indicator 2.1: Vaginal birth following caesarean section. This ACHS indicator is based on the definition by Women's Healthcare Australasia Core Maternity Indicators Project (WHA 2007).
|Unit of measure:||Person|
Data source attributes
Source and reference attributes
Australian Institute of Health and Welfare
ACHS (The Australian Council on Healthcare Standards, Health Services Research Group, University of Newcastle) 2014. The Australasian Clinical Indicator Report: 2006-2013. 15th edn. Sydney: ACHS. Viewed 9 April 2018, https://www.achs.org.au/media/88679/clinical_indicator_report_2006_2013.pdf.
WHA (Women's Healthcare Australasia) 2007. Supporting excellence in maternity care: the core maternity indicators project: findings from the core maternity indicators project. Canberra: WHA.
|Related metadata references:|
Supersedes National Core Maternity Indicators: PI 15–Females having their second birth vaginally whose first birth was by caesarean section, 2018 Health, Superseded 19/06/2019