Adjusting for under-identification of Aboriginal and/or Torres Strait Islander births in time series produced from birth records: Using record linkage of survey data and administrative data sources

Table 1 Aboriginal and/or Torres Strait Islander children whose carer is their birth mother: Indigenous status of mother as recorded in the WA Midwives’ Notification System compared with Indigenous status recorded in the WAACHS: weighted survey estimates, Western Australia (a) (b)

Indigenous status of mother as recorded in the WAACHS	Indigenous status of mother as recorded in the WA Midwives’ Notification System
Indigenous status of mother as recorded in the WAACHS	Aboriginal and/or Torres Strait Islander	Non-Indigenous	Not stated	Total
Aboriginal and/or Torres Strait Islander	16,200	1,810	30	18,000
Non-Indigenous	90	2,940		3,030
Not stated	130	30		160
Total	16,400	4,780	30	21,200

(a) Estimates are rounded to 3 significant digits. Estimates may not sum to totals due to rounding.
(b) Estimates based on 3,820 WAACHS children whose primary carer was their mother and who were linked to their birth records.

ISSN: 1471-2288