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Definition

The incidence of low birthweight among liveborn singleton babies of Aboriginal and Torres Strait Islander mothers and other mothers

Indicator Summary

Numerator
Number of low birthweight liveborn singleton infants.
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Denominator
Number of liveborn singleton infants with known birthweight.
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Computation

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

Excludes multiple births, stillbirths and births with unknown birthweight or unknown gestational age.

Analysis by state/territory, remoteness and SEIFA Index of Relative Socioeconomic Disadvantage (IRSD) is based on usual residence of the mother.

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

Presented …

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Disaggregation

2009—Nationally by:

  • remoteness (Australian Standard Geographical Classification Remoteness Structure)
  • SEIFA Index of Relative Socioeconomic Disadvantage (IRSD) deciles

2009—State and territory, by:

  • Indigenous status

2007–2009—State and territory, by:

  • Indigenous status

Disaggregation by Indigenous status is recommended to be reported using three-year combined data for the current reporting period due to the small number of low birth weight infants born to Indigenous mothers each year. Single year data (2009) will be reported for time-series (state/territory by Indigenous status).

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Calculation rules

Computation Rule
Description

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

Excludes multiple births, stillbirths and births with unknown birthweight or unknown gestational age.

Analysis by state/territory, remoteness and SEIFA Index of Relative Socioeconomic Disadvantage (IRSD) is based on usual residence of the mother.

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

Presented as a:

  • percentage, and
  • number (Indigenous status).
Numerators
Number of low birthweight liveborn singleton infants.
Denominators
Number of liveborn singleton infants with known birthweight.
Disaggregation

2009—Nationally by:

  • remoteness (Australian Standard Geographical Classification Remoteness Structure)
  • SEIFA Index of Relative Socioeconomic Disadvantage (IRSD) deciles

2009—State and territory, by:

  • Indigenous status

2007–2009—State and territory, by:

  • Indigenous status

Disaggregation by Indigenous status is recommended to be reported using three-year combined data for the current reporting period due to the small number of low birth weight infants born to Indigenous mothers each year. Single year data (2009) will be reported for time-series (state/territory by Indigenous status).

References

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