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Definition

The number of women who gave birth, where an antenatal visit was reported in the first trimester, as a proportion of women who gave birth

Indicator Summary

Numerator
Number of women who gave birth, where an antenatal visit was reported in the first trimester (up to and including 13 weeks gestation) for at least one live or stillborn baby
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Denominator
Total number of women who gave birth to at least one live or stillborn baby where gestation at first antenatal visit is known.
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Computation

First trimester is defined as before 14 weeks of pregnancy.

Births include live births and still births.

Indigenous rates are directly age-standardised to the 2001 Australian population.

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

Excludes records with missing data for gestation at first antenatal visit.

Analysis by state and territory, remoteness …

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Disaggregation

2009—Nationally, by SEIFA Index of Relative Socioeconomic Disadvantage (IRSD) deciles

2007 and 2008 (Indigenous data revised for age standardisation), and 2009—State and territory, by:

  • Indigenous status
  • remoteness (Australian Standard Geographical Classification Remoteness Structure)
  • SEIFA IRSD quintiles

Some disaggregation may result in numbers too small for publication.

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Calculation rules

Computation Rule
Description

First trimester is defined as before 14 weeks of pregnancy.

Births include live births and still births.

Indigenous rates are directly age-standardised to the 2001 Australian population.

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

Excludes records with missing data for gestation at first antenatal visit.

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

Presented as a percentage.

Numerators
Number of women who gave birth, where an antenatal visit was reported in the first trimester (up to and including 13 weeks gestation) for at least one live or stillborn baby
Denominators
Total number of women who gave birth to at least one live or stillborn baby where gestation at first antenatal visit is known.
Disaggregation

2009—Nationally, by SEIFA Index of Relative Socioeconomic Disadvantage (IRSD) deciles

2007 and 2008 (Indigenous data revised for age standardisation), and 2009—State and territory, by:

  • Indigenous status
  • remoteness (Australian Standard Geographical Classification Remoteness Structure)
  • SEIFA IRSD quintiles

Some disaggregation may result in numbers too small for publication.

References

Related content

Relation Count
Indicator Sets that include this Indicator 0
Data Sets that are used in this Indicator 0