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National Healthcare Agreement: PI 01–Proportion of babies born of low birth weight, 2018

Identifying and definitional attributes

Metadata item type:Help on this termIndicator
Indicator type:Help on this termProgress measure
Short name:Help on this termPI 01–Proportion of babies born of low birth weight, 2018
METEOR identifier:Help on this term658534
Registration status:Help on this term
  • Health, Superseded 19/06/2019
Description:Help on this term

The incidence of low birthweight among live born singleton babies.

Indicator set:Help on this termNational Healthcare Agreement (2018)
Health, Superseded 16/06/2019
Outcome area:Help on this termPrevention
Health, Standard 07/07/2010
Quality statement:Help on this termNational Healthcare Agreement: PI 01-Proportion of babies born with low birth weight, 2018, QS Health, Superseded 19/06/2019

Collection and usage attributes

Computation description:Help on this term

Low birthweight is defined as less than 2,500 grams.

Excludes multiple births, stillbirths and births of less than 20 weeks gestation.

Analysis by state/territory, remoteness and Socio-Economic Indexes for Areas (SEIFA) Index of Relative Socio-Economic Disadvantage (IRSD) is based on the usual residence of the mother.

Data excludes Australian non-residents, residents of external territories and records where state/territory of usual residence was not stated.

Variability bands are to be calculated for single-year and aggregate years data by state and territory using the method below.

Presented as a:

  • percentage, and
  • number (for disaggregations by Indigenous status).
Computation:Help on this term

100 × (Numerator ÷ Denominator)

Variability bands: to be calculated using the standard method for estimating 95% confidence intervals as follows:

CI (CR)95% = CR ± 100 × 1.96 × √[((CR/100) × (1 – (CR/100)))/n]

 Where   n=number of live born singleton babies.

CI = confidence interval

CR = crude rate (expressed as a percentage)

Numerator:Help on this term

Number of low birthweight live born singleton babies.

Numerator data elements:Help on this term
Data Element / Data Set

Birth—birth weight, total grams NNNN

Data Source

AIHW National Perinatal Data Collection (NPDC)

NMDS / DSS

Perinatal NMDS 2014-18

Guide for use

Data source type: Administrative by-product data

Data Element / Data Set

Birth—birth status, code N

Data Source

AIHW National Perinatal Data Collection (NPDC)

NMDS / DSS

Perinatal NMDS 2014-18

Guide for use

Data source type: Administrative by-product data

Data Element / Data Set

Product of conception—gestational age, completed weeks N[N]

Data Source

AIHW National Perinatal Data Collection (NPDC)

NMDS / DSS

Perinatal NMDS 2014-18

Guide for use

Data source type: Administrative by-product data

Data Element / Data Set

Birth event—birth plurality, code N

Data Source

AIHW National Perinatal Data Collection (NPDC)

NMDS / DSS

Perinatal NMDS 2014-18

Guide for use

Data source type: Administrative by-product data

Denominator:Help on this term

Number of live born singleton babies.

Denominator data elements:Help on this term
Data Element / Data Set

Birth—birth status, code N

Data Source

AIHW National Perinatal Data Collection (NPDC)

NMDS / DSS

Perinatal NMDS 2014-18

Guide for use

Data source type: Administrative by-product data

Data Element / Data Set

Product of conception—gestational age, completed weeks N[N]

Data Source

AIHW National Perinatal Data Collection (NPDC)

NMDS / DSS

Perinatal NMDS 2014-18

Guide for use

Data source type: Administrative by-product data

Data Element / Data Set

Birth event—birth plurality, code N

Data Source

AIHW National Perinatal Data Collection (NPDC)

NMDS / DSS

Perinatal NMDS 2014-18

Guide for use

Data source type: Administrative by-product data

Disaggregation:Help on this term

2015—Nationally, by (all not reported):

  • remoteness (Australian Statistical Geography Standard (ASGS) Remoteness Structure)
  • 2011 Socio-Economic Indexes for Areas (SEIFA) Index of Relative Socio-economic Disadvantage (IRSD) deciles

2015—State and territory, by:

  • Indigenous status of the mother
  • Indigenous status of the baby

2013–15—State and territory, by (all not reported):

  • Indigenous status of the mother
  • Indigenous status of the baby

Disaggregation by Indigenous status of the mother and the baby are recommended to be reported using 3-year combined data for the current reporting period due to the small number of low birthweight babies born to Indigenous mothers each year, and the small number of low birthweight Indigenous babies born each year. Single year data (2015) will be reported for time series (state/territory by Indigenous status).

Note that data collection methods for Indigenous status of the mother and baby may vary between states and territories.

Disaggregation data elements:Help on this term
Data Element / Data Set

Person—Indigenous status, code N

Data Source

AIHW National Perinatal Data Collection (NPDC)

NMDS / DSS

Perinatal NMDS 2014-18

Guide for use

Data source type: Administrative by-product data

Data Element / Data Set

Person—area of usual residence, statistical area level 2 (SA2) code (ASGS 2011) N(9)

Data Source

AIHW National Perinatal Data Collection (NPDC)

NMDS / DSS

Perinatal NMDS 2014-18

Guide for use

Data source type: Administrative by-product data
Used for disaggregation by state/territory, remoteness and SEIFA IRSD.

Geographic unit used is Statistical Area Level 2 (SA2). If data are coded according to the Australian Standard Geographical Classification (ASGC) boundaries, concordance files are used to map to the ASGS.

Comments:Help on this term

Most recent data available for 2018 National Healthcare Agreement performance reporting: 2015 (calendar year data).

Indigenous: Aggregated data (2013 to 2015) will be reported for the current reporting period (state and territory).

Single year data (2015) will be reported for time-series (state and territory).

Information is included in the National Perinatal Data Collection (NPDC) for all live births and stillbirths of at least 400 grams birthweight or at least 20 weeks gestation. Data for this indicator may therefore include live born terminations of pregnancy of at least 20 weeks gestation.

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 term

N[NN].N

Indicator conceptual framework

Framework and dimensions:Help on this termCommunity and socioeconomic

Data source attributes

Data sources:Help on this term
Data Source

AIHW National Perinatal Data Collection (NPDC)

Frequency

Calendar years ending 31 December each year

Data custodian

Australian Institute of Health and Welfare

Accountability attributes

Reporting requirements:Help on this term

National Healthcare Agreement

Organisation responsible for providing data:Help on this term

Australian Institute of Health and Welfare

Further data development / collection required:Help on this term

Specification: Final, the measure meets the intention of the indicator.

Source and reference attributes

Relational attributes

Related metadata references:Help on this term
Supersedes National Healthcare Agreement: PI 01–Proportion of babies born of low birth weight, 2017
  • Health, Superseded 30/01/2018
Has been superseded by National Healthcare Agreement: PI 01–Proportion of babies born of low birth weight, 2019
  • Health, Superseded 13/03/2020
See also National Healthcare Agreement: PI 07–Infant and young child mortality rate, 2018
  • Health, Superseded 19/06/2019
See also National Indigenous Reform Agreement: PI 07-Proportion of babies born of low birthweight, 2019
  • Indigenous, Superseded 23/08/2019
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