PRELIMINARY ESTIMATES OF BIRTHS AND DEATHS
5.7 Each quarter, preliminary estimates of birth and death occurrences are estimated directly as the number of births and deaths registered in the reference period. The aim is to estimate the number of birth and death occurrences with the data available 5 to 6 months after the reference quarter.
5.8 Preliminary quarterly estimates can be an underestimate or an overestimate of the true numbers of births and deaths occurring in a reference period due to the accumulation or lag of registrations (see above).
5.9 Preliminary estimates of births and deaths by state/territory as a component of population growth are published quarterly in Australian Demographic Statistics (cat. no. 3101.0). The births and deaths data in this publication are not necessarily consistent with the data found in Births, Australia (cat. no. 3301.0) and Deaths, Australia (cat. no. 3302.0). This is because the revision cycle necessary to produce ERP results in a mix of preliminary births and deaths data, based on date of registration, and revised data which are modelled estimates of births and deaths by date of occurrence. By contrast, the main tables of data in the births and deaths publications are based wholly on registration in the reference year, with some tables and analysis based wholly on occurrence data.
5.10 Birth estimates for each calendar year are published the following October in Births, Australia (cat. no. 3301.0) and are disaggregated by:
- geography
- sex
- age of parents
- nuptuality (marital status of parents)
- year and month of occurrence
- country of birth of parents
- Indigenous status of child/parents.
5.11 Death estimates for each calendar year are published the following November in
Deaths, Australia (cat. no. 3302.0) and are disaggregated by:
- geography
- sex
- age at death
- marital status
- country of birth
- year and month of occurrence
- Indigenous status.
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