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National Healthcare Agreement: PI 01–Proportion of babies born of low birth weight, 2019

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, 2019
METEOR identifier:Help on this term698938
Registration status:Help on this term
  • Health, Superseded 13/03/2020
Description:Help on this term

The incidence of low birthweight among live born singleton babies.

Indicator set:Help on this termNational Healthcare Agreement (2019)
Health, Superseded 13/03/2020
Outcome area:Help on this termPrevention
Health, Standard 07/07/2010

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 using the standard method (see definition under Computation).

Presented as a:

  • number, and
  • percentage.
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 SetBirth—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 SetBirth—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 SetProduct 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 SetBirth 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 SetBirth—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 SetProduct 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 SetBirth 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

2016—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

2016—State and territory, by:

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

2014–16—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 (2016) 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 SetPerson—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 SetPerson—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) in the Australian Statistical Geography Standard (ASGS). 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 2019 National Healthcare Agreement performance reporting: 2016 (calendar year data).

Indigenous: Aggregated data (2014 to 2016) will be reported for the current reporting period (state and territory).

Single year data (2016) 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 SourceAIHW 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, 2018
  • Health, Superseded 19/06/2019
Has been superseded by National Healthcare Agreement: PI 01–Proportion of babies born of low birth weight, 2020
  • Health, Standard 13/03/2020
See also National Healthcare Agreement: PI 07–Infant and young child mortality rate, 2019
  • Health, Superseded 13/03/2020
See also National Indigenous Reform Agreement: PI 07-Proportion of babies born of low birthweight, 2020
  • Indigenous, Standard 23/08/2019
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