Table 1 Characteristics of avoidable admissions by Aboriginal status (admission level) (n = 27,467)
|  |  | Aboriginal % (n) (n = 20,306) | Non-Aboriginal % (n) (n = 7161) | χ2 p-value |
|---|---|---|---|---|
Sex | % Male | 43.9 (8921) | 51.5 (3691) | <  0.001 |
Age | Mean (SD) | 57.0 (14.9) | 69.8 (16.1) | <  0.001 |
Marital status |  |  |  | <  0.001 |
| Â | Married/de facto | 37.1 (7540) | 49.7 (3556) | Â |
| Â | Single | 29.7 (6023) | 11.4 (815) | Â |
| Â | Widowed | 15.5 (3148) | 26.5 (1898) | Â |
| Â | Divorced/separated | 16.0 (3255) | 11.4 (813) | Â |
| Â | Not known | 1.6 (327) | 1.1 (75) | Â |
Ambulatory care sensitive chronic diseases | Diabetic complications | 18.4 (3746) | 13.0 (930) | <  0.001 |
|  | Asthma | 11.4 (2309) | 8.7 (626) | < 0.01 |
|  | Angina | 17.1 (3466) | 20.3 (1452) | <  0.001 |
|  | Hypertension | 2.4 (493) | 3.5 (252) | < 0.001 |
|  | CHF | 11.2 (2274) | 22.5 (1609) | <  0.001 |
|  | COPD | 39.5 (8018) | 32.0 (2292) | <  0.001 |
Charlson co-morbidity Index | 0 | 21.8 (4427) | 22.6 (1622) | < 0.001 |
|  | 1–2 | 64.9 (13,170) | 61.7 (4420) |  |
| Â | 3+ | 13.3 (2709) | 15.6 (1119) | Â |
Index of relative socio-economic disadvantage (IRSD) |  |  |  | <  0.001 |
| Â | 1st quintile - most disadvantaged | 29.2 (5939) | 13.0 (933) | Â |
| Â | 2nd quintile | 29.9 (6080) | 25.4 (1821) | Â |
| Â | 3rd quintile | 20.7 (4195) | 23.0 (1645) | Â |
| Â | 4th quintile | 16.4 (3329) | 21.4 (1535) | Â |
| Â | 5th quintile - least disadvantaged | 3.8 (763) | 17.1 (1227) | Â |
Accessibility/remoteness index of Australia (ARIA) |  |  |  | <  0.001 |
| Â | Highly Accessible | 33.5 (6811) | 64.9 (4647) | Â |
| Â | Accessible | 37.5 (7616) | 26.6 (1902) | Â |
| Â | Moderately Accessible | 19.2 (3897) | 7.3 (525) | Â |
| Â | Remote / Very Remote | 9.8 (1982) | 1.2 (87) | Â |
Length of stay | Median (Interquartile range) | 3 (5) | 4 (5) | <  0.001 |