Table 1 Patient demographic and clinical factors a
| Â | AIRD | Non-AIRD | |
|---|---|---|---|
Patients, n (%) | 1,409 (1.8) | 77,981 (98.2) | |
Age, median (IQR) | 77 (68 to 83) | 74 (61 to 82) | |
Female, n (%) | 894 (63.5) | 30,489 (39.1) | |
Indigenous,b n (%) | 6 (2.0) | 556 (3.7) | |
Married/de facto,b n (%) | 137 (46.3) | 9,007 (59.5) | |
High accessibility to services,c,d n (%) | 1,232 (87.8) | 67,550 (87.1) | |
Lowest quartile of SEIFA-IRSD, n (%) | 190 (13.5) | 11,102 (14.3) | |
Elective admission,e n (%) | 213 (19.1) | 10,923 (17.4) | |
Public hospital admission,e n (%) | 709 (63.7) | 41,965 (66.8) | |
Comorbidities at index admission, n (%) | |||
| Â | Hypertension | 579 (41.1) | 34,687 (44.5) |
| Â | Arrhythmia | 437 (31.0) | 22,202 (28.5) |
| Â | Congestive heart failure | 511 (36.3) | 20,955 (26.9) |
| Â | Smoker | 168 (11.9) | 15,816 (20.3) |
| Â | Hypercholesterolaemia | 143 (10.2) | 12,750 (16.4) |
| Â | Diabetes | 300 (21.3) | 16,183 (20.7) |
| Â | Renal disease | 284 (20.2) | 9,649 (12.4) |
| Â | Pulmonary disease | 161 (11.4) | 5,927 (7.6) |
| Â | Cerebrovascular accident | 103 (7.3) | 4,227 (5.4) |
| Â | Cancer | 67 (4.7) | 4,781 (6.1) |
| Â | Obesity | 47 (3.3) | 3119 (4.0) |
| Â | Paraplegia | 51 (3.6) | 2,262 (2.9) |
| Â | Peripheral vascular disease | 40 (2.8) | 1,754 (2.3) |
| Â | Dementia | 28 (2.0) | 1,326 (1.7) |
| Â | Peptic ulcer disease | 34 (2.4) | 871 (1.1) |
| Â | Liver disease | 16 (1.2) | 443 (0.6) |
| Â | HIV | 1 (<0.1) | 30 (<0.1) |