Prevalence of SHS exposure at home by family smoking status
| All (N=61 810) | Smoking families (N=22 558) | Non-smoking families (N=33 344) | |
|---|---|---|---|
| Per cent | Per cent | Per cent | |
| SHS exposure at home (days/week) | |||
| From inside the home | |||
| 0 | 76.8 | 40.3 | 98.5 |
| 1–4 | 12.4 | 30.6 | 1.3 |
| 5–7 | 10.8 | 29.1 | 0.2 |
| Any exposure | 23.2 | 59.7 | 1.5 |
| From neighbours | |||
| 0 | 82.9 | 76.1 | 87.7 |
| 1–4 | 13.5 | 18.4 | 10.0 |
| 5–7 | 3.6 | 5.4 | 2.3 |
| Any exposure | 17.1 | 23.9 | 12.3 |
| Source of SHS exposure at home | |||
| None | 66.8 | 33.6 | 86.7 |
| From inside the home only | 16.2 | 42.7 | 1.0 |
| From neighbours only | 10.0 | 6.8 | 11.8 |
| From both | 7.0 | 17.0 | 0.5 |
| Any source | 33.2 | 66.4 | 13.3 |
Percentages were weighted by age, sex and grade.
Number of students from smoking and non-smoking families did not add up to the total number of students due to missing data in reporting the number of coresiding smokers and data cleaning if inconsistency with another question about coresiding smoker identification was found.
SHS, secondhand smoke.