Table 2 Underestimation of Aboriginal status on death records compared with estimates based on linked hospital morbidity and death records
Aboriginal identification in death record, n (%,95% CI) | Aboriginal identification in hospital admission for cardiovascular disease | |||
|---|---|---|---|---|
Positive | negative or unidentified | Total | relative risk (95% CI) | |
Positive | 654 (92.0; 90.0-94.0) | 60 | 714 | |
Negative | 188 (1.0; 0.9-1.2) | 18,048 | 18,236 | |
Sub total | 842 (4.4; 4.1-4.7) | 18,108 | 18,950 | 1.9 (1.5 to 2.4) |
Unidentified | 73 (8.5; 6.6-10.4) | 786 | 859 | |
Grand total | 915 (4.6; 4.3-4.9) | 18,894 | 19,809 | |