Self-reported measures
Self-reported measures were assessed via an online questionnaire. Age (years) was derived from date of birth and gender was reported as man, woman, trans or other. Highest level of education was self-reported and categorised as: low (year 12 or less); medium (trade/apprenticeship, certificate/diploma); and high (university degree, higher degree). Employment status was categorised as: full time; part time; not employed/working. Number of dependents was reported, while marital status was categorised as: married (living in a registered marriage/a de facto relationship); and not married (separated, divorced, widowed; never married). Self-reported health was categorised into three levels: excellent/very good, good, and fair/poor. Smoking status was self-reported as: current smoking status (yes or no). Access to a private motor vehicle (e.g., car, motorbike) was reported (i.e., yes, yes but some of the time, and no).