Table 2 Predictor variables from the Census 2018 dataset.
Predictor variable | Type of variable | Number of categories | Description |
|---|---|---|---|
1. Age (in years) | Continuous | NA | 0–120 |
2. Gender | Categorical | 2 | Male or Female |
3. Ethnicity | Categorical | 5 | European, NZ Māori, Pacific, Asian, Middle Eastern/Latin American/African and Other Ethnic groups |
4. Region | Categorical | 6 | Auckland, Wellington, Northland group (Northland, Bay of Plenty, Gisborne), Rest of North Island, Canterbury, Rest of South Island |
5. Marital Status | Categorical | 5 | Married (not separated), Separated, Divorced or dissolved, Widowed or surviving civil union partner, Never married and never in a civil union |
6. Birth Country | Categorical | 2 | New Zealand, Other |
7. Highest Qualification | Categorical | 8 | No Qualification, School Qualification, Post-school Qualification, Bachelor’s degree and Level 7 Qualification, Post-graduate and Honours Degrees, Master’s Degree, Doctorate Degree, Overseas Secondary School Qualification |
8. Personal Income | Categorical | 9 | $0–$30,000 $30,001–$35,000 $35,001–$40,000 $40,001–$50,000 $50,001–$60,000 $60,001–$70,000 $70,001–$100,000 $100,001-$150,000, $150,001 or More |
9. Household Income | Categorical | 9 | Same as Personal Income |
10. Number of income sources | Categorical | 5 | No source of income, One source, Two sources, Three sources, Four sources, Five or more sources, |
11. Workforce Status | Categorical | 4 | Employed Full-time, Employed Part-time, Unemployed, Not in the Labour Force |
12. Study Participation Code | Categorical | 3 | Full-time study, Part-time study, Not studying |
13. Number of Languages spoken | Categorical | 7 | None, One Language, Two Languages, Three Languages, Four Languages, Five Languages, Six Languages |
14. Home Ownership | Categorical | 3 | Hold in a family trust, Own or partly own, Do not own and do not hold in a family trust |
15. Index of Socioeconomic Deprivation Score 201826 | Continuous | Derived variable | 823–1552 |
16. Index of Socioeconomic Deprivation 201826 | Categorical | 10 | 1-Least deprived 10-Most deprived |
17. Dwelling dampness indicator | Categorical | 4 | Always damp, Sometimes damp, Not damp, Don’t know |
18. Dwelling mould indicator | Categorical | 4 | Mould over A4 size–always, Mould over A4 size–sometimes, No mould/mould smaller than A4 size, Don’t know |
19. Difficulty in Seeing | Categorical | 4 | No difficulty, Some difficulty, A lot of difficulty, Cannot do at all |
20. Difficulty in Hearing | Categorical | 4 | Same as above |
21. Difficulty in Washing | Categorical | 4 | Same as above |
22. Difficulty in Communication | Categorical | 4 | Same as above |
23. Difficulty in Remembering | Categorical | 4 | Same as above |
24. Difficulty in Walking | Categorical | 4 | Same as above |
25. Disability indicator | Categorical | 2 | Not disabled, Disabled |
26. Crowding code-based on Canadian National Occupancy Standard | Categorical | 5 | 2 + beds needed, 1 bed needed, no beds needed, 1 bed spare, 2 + beds spare |
27. Cigarette smoking behaviour | Categorical | 3 | Regular Smoker, Ex-Smoker, Never Smoked Regularly |
28. Have you ever smoked? | Categorical | 2 | Yes or no |
29. Do you smoke regularly? | Categorical | 2 | Yes or no |
