Table 1 Comprehensive list of variables generated from data collection
Category | Variable | Measurement instrument |
|---|---|---|
Demographics | Sex, age, contact details, occupation (kind of work done for most of life), number of adults (aged 18 years and over) and children in the household, reason for refusal (if applicable) | Recruitment (CATI) interview |
| Â | Age, country of birth, year of arrival in Australia (if applicable), gross annual household income, age when left school, highest educational qualification attained, marital status, work status, Aboriginal and/or Torres Strait Islander status, pension/benefit status | Self-administered questionnaire |
Health conditions | Doctor-confirmed chronic disease status – diabetes, asthma, bronchitis, emphysema, heart attack, stroke, angina; anxiety, depression, a stress-related problem or any other mental health problem | Recruitment (CATI) interview |
|  | Diabetes – doctor-confirmed prevalence, gestational diabetes, type of diabetes, time when first diagnosed (Phase 1B only) | Self-administered questionnaire |
| Â | Asthma, bronchitis, emphysema- doctor-confirmed prevalence; perceived severity of asthma, time when first diagnosed (Phase 1B only) | Â |
Unhealthy behaviours | Smoking (type not specified) | Recruitment (CATI) interview |
| Â | Doctor-confirmed high cholesterol and high blood pressure, height and weight (Phase 1B only) | Â |
|  | General health and well-being (SF-36), smoking (cigarette, cigar and/or pipe – current habit, number of cigarettes usually – now or ever – smoked in a day, age when last smoked (if relevant), and age when smoking first started (Phase 1B only), alcohol usage (frequency and number of standard drinks), physical activity (number of times within last two weeks, average time per exercise session and intensity – walking, moderate or vigorous) | Self-administered questionnaire |
Family history and medical history | Family history of diabetes, heart disease and stroke; medical history of chronic health conditions – diabetes, asthma (including lung function), bronchitis, emphysema | Self-administered questionnaire |
Health service utilisation | Number of all health (medical and surgical) services used during last 12 months (including general practitioner, hospital, allied health and alternative health) | Self-administered questionnaire |
| Â | Consent to link to Medicare and pharmaceutical information | Clinic examination |
Biomedical measurements | Blood pressure, height, weight, waist and hip circumference | Clinic examination |
Blood tests (fasting) | Triglycerides, total cholesterol, HDL and LDL cholesterol, glucose and HbA1c | Clinic examination |
Skin allergy measurements | Saline (negative control), cockroach, house dust mite, cat dander, alternaria (mould), feather, rye grass, histamine [5%] (positive control) | Clinic examination |
Lung function measurements | Pre and post FEV1, FVC, PEF (peak expiratory flow) and predicted percentages | Clinic examination |