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Table 3 Indigenous population composition reported in each data source for people aged 16–29 year olds

From: Incomplete recording of Indigenous identification status under-estimates the prevalence of Indigenous population attending Australian general practices: a cross sectional study

Data source

Recorded as Indigenous

Recorded as non-Indigenous

Proportion in combined data (%)

Median proportion per clinic (%, IQR)

Proportion in combined data (%)

Median proportion per clinic (%, IQR)

Patient survey

5.2

1.8 (0–7.3)

87.3

92.9 (82.0–97.8)

All patient records

2.1

0.9 (0.2–3.1)

53.4

70.4 (43.8–90.2)

Patient records (complete case)*

3.7

3.4 (1.2–15.4)

96.3

96.5 (84.6–98.8)

ABS Census 2011

1.6

1.7 (1.0–4.3)

92.1

93.6 (90.2–95.0)

  1. *complete case analysis used 44.5% of all records (n = 48,884) where records listed with a missing/ unknown Indigenous status were excluded