| Age |
Middle-aged (45 to 59 years), and older adults (≥ 60 years). |
| Gender |
Male and female. |
| Civil status |
Partnered (married, and never married but living with someone in a relationship), and unpartnered (separated but not divorced, divorced, widowed, and never married and not living with someone in a relationship). |
| Education |
Year 12 and below (year 12, and Year 11 and below), professional qualifications (advance diploma or diploma, and certificate III or IV), and university qualifications (postgraduate—masters or doctorate, graduate diploma or certificate, bachelor or honours). |
| Household yearly disposable income quintile |
Quintiles (quintile 1 [lowest] to quintile 5 [highest]). |
| Labour force status |
Employed, unemployed, and not in the labour force. |
| Indigenous status |
Non-Indigenous, and Aboriginal/Torres Strait Islander (ATSI) or both. |
| Location |
Major city, regional city (inner and outer regional) and remote areas (remote and very remote). |
| Smoking status |
never smoked, a former smoker and current smoker. |
| Alcohol consumption |
Never drank, ex-drinker, only rarely to 4 days/week, and 4+ days/week. |
| Physical activity (≥ 30 minutes) |
Not at all to <1/week, 1–3 times/week, and ≥ 4 times/week. |
