Table 4.
Multivariate relationships between home characteristics and significant risk factors
| Home characteristics | Number and percentage whose home had a specific characteristic | Significant factors (α = 0.05) | Relative risk ratio [95 % CI] |
|---|---|---|---|
| Installed air conditioner | N=47, %=3.2 | Age group (base: 18–25) | |
| 26-60 | 0.4 [0.2, 0.9]* | ||
| 61-75 | 0.2 [0.1, 0.6]* | ||
| 76+ | 0.5 [0.2, 1.6] | ||
| Sex (base: male) | |||
| Female | 0.8 [0.4, 1.6] | ||
| Ethnicity (base: Non White) | |||
| White | 0.3 [0.1, 0.8]* | ||
| Location (base: South of England) | |||
| East of England and the Midlands | 1.5 [0.6, 3.6] | ||
| London | 1.5 [0.5, 4.6] | ||
| North | 2.0 [0.7, 5.4] | ||
| Scotland | 0.0 [0.0, 0.0] | ||
| Wales | 1.2 [0.2, 6.1] | ||
| Northern Ireland | 0.0 [0.0, 0.0] | ||
| Education level (base: higher level/university qualification) | |||
| A-Levels/vocational level 3 | 1.0 [0.5, 2.3] | ||
| GCSE O Levels/vocational level 2 | 0.9 [0.4, 1.9] | ||
| Other/ unknown qualification | 0.9 [0.1, 7.4] | ||
| Income (base: <£15,000 gross yearly) | |||
| £15,000 - £29,999 gross yearly | 1.7 [0.7, 4.1] | ||
| £30,000 - £49,999 gross yearly | 1.1 [0.4, 3.1] | ||
| > £50,000 gross yearly | 0.9 [0.3, 3.0] | ||
| Dark curtains | N = 911, % = 61.7 | None | |
| Portable air conditioner | N = 265, % = 18.1 | Age group (base: 18–25) | |
| 26-60 | 0.5 [0.3, 0.8] | ||
| 61-75 | 0.5 [0.3, 0.9] | ||
| Shutters | N = 172, % = 11.6 | Age group (base: 18–25) | |
| 26-60 | 0.4 [0.2, 0.7] | ||
| 61-75 | 0.3 [0.2, 0.5] | ||
| 76+ | 0.5 [0.2, 0.9] | ||
| Ethnicity (base: Non White) | |||
| White | 0.4 [0.2, 0.6] | ||
| Location (base: South of England) | |||
| London | 2.1 [1.2, 3.8] | ||
| Loft/wall insulation | N = 1144, % = 77.2 | Age group (base: 18–25) | |
| 26-60 | 1.7 [1.1, 2.6] | ||
| 61-75 | 3.4 [2.1, 5.5] | ||
| 76+ | 3.5 [1.9, 6.2] | ||
| Location (base: South of England) | |||
| London | 0.4 [0.3, 0.7] | ||
| Income (base: <£15,000 gross yearly) | |||
| £15,000 - £29,999 gross yearly | 1.5 [1.0, 2.1] | ||
| £30,000 - £49,999 gross yearly | 1.5 [1.0, 2.2] | ||
| >£50,000 gross yearly | 1.6 [1.0, 2.5] | ||
| Light curtains | N = 1085, % = 73.4 | Age group (base: 18–25) | |
| 61-75 | 2.0 [1.3, 3.1] | ||
| Location (base: South of England) | |||
| London | 0.6 [0.4, 1.0] | ||
| Education level (base: higher level/university qualification) | |||
| O-level/vocational level 2 | 0.7 [0.5, 0.9] |
*Significant variables at α = 0.05