Table 1 Initial variables included in models tested
Model Number | Variables initially included in models as explanatory variables | |
|---|---|---|
Model 1 | Number of chronic conditions | |
Model 2 | Number of body systems (ICPC-2 chapters) | |
Model 3 | Age, Age2 and sex | |
Model 4 | Number of chronic conditions | |
Number of body systems | ||
Age Age2 Sex | ||
Indigenous status (self-identified) | ||
Level of relative disadvantage/advantage (1–5 and 6–10 on IRSAD) | ||
Major city Vs regional/remote area (ASGC) | ||
Commonwealth Concession Health Care Card (CCHCC) holder | ||
Model 4A | All variables from Model 4 with the addition of the presence/absence of each the following: | |
Anxiety | Asthma | |
Atrial fibrillation | Chronic back pain | |
Chronic renal failure | Chronic obstructive pulmonary disease | |
Congestive heart failure | Dementia | |
Depression | Gastroesophageal reflux disease | |
Glaucoma | Hyperlipidaemia | |
Hypertension | Hyperthyroidism | |
Hypothyroidism | Insomnia | |
Ischaemic heart disease | Malignant neoplasm | |
Obesity | Osteoarthritis | |
Osteoporosis | Other arthritis | |
Peripheral vascular disease | Rheumatoid arthritis | |
Sleep apnoea | Stroke/cerebrovascular accident | |
Type 1 diabetes | Type 2 diabetes | |
` | All variables from Model 4 with the addition of: Patient overall severity of illness | |