AIHW - Maternity Indicators - Women having their Second Birth Vaginally whose First Birth was by C-section (%) (PHN) 2012-2016

Brief description

This dataset presents the footprint of the percentage of women having their second birth vaginally whose first birth was by caesarean section, by the mother's usual residence. This has been calculated with 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. The data spans the years of 2012-2016 and is aggregated to 2015 Department of Health Primary Health Network (PHN) areas, based on the 2011 Australian Statistical Geography Standard (ASGS).

The data is sourced from the National Perinatal Data Collection (NPDC), which is a national population-based cross-sectional collection of data on pregnancy and childbirth. The data are based on births reported to the perinatal data collection in each state and territory in Australia. Midwives and other birth attendants, using information obtained from mothers and from hospital or other records, complete notification forms for each birth. A standard de-identified extract is provided to the Australian Institute of Health and Welfare (AIHW) on an annual basis to form the NPDC.

For further information about this dataset, please visit:

* [Australian Institute of Health and Welfare - National Core Maternity Indicators Data Tables.](https://www.aihw.gov.au/reports/mothers-babies/ncmi-data-visualisations/data)

* [Metadata Online Registry Entry.](https://meteor.aihw.gov.au/content/index.phtml/itemId/690174)

Please note:

* AURIN has spatially enabled the original data using the [Department of Health - PHN Areas.](https://www1.health.gov.au/internet/main/publishing.nsf/Content/PHN-Home)

* 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.

* Data for Victoria in 2007 to 2009 were not available.

* Data for WA in 2013 is not published as complete data due to only half a year being reported.

* From 2014, Caesarean section at most recent previous birth indicator 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, Caesarean section indicator (last previous birth).

* The sum of the reported 'Grouped by' values may not equal the Australia total.

Full description

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