Table 1.
Characteristics of the children who underwent clinical examination and their parents who completed the questionnaire (n = 7432)
| Characteristics | Child | Mother | Father |
|---|---|---|---|
| Age, years (m ± SD) | 38.4 ± 5.1 | 41.4 ± 6.3 | |
| 9 years (%) | 27.8 | ||
| 10 years (%) | 48.7 | ||
| 11 years (%) | 23.5 | ||
| Gender (male, %) | 49.4 | ||
| Place of residence (%) | |||
| North of France | 49.9 | ||
| South of France | 50.1 | ||
| Weight in Kg (m ± SD) | 36.1 ± 8.3 | ||
| Height in meter (m ± SD) | 1.4 ± 0.1 | ||
| Overweight and obesity (%) | 21.0 | ||
| Current ETS (%) | 40.0 | ||
| Parental atopic disease (%) | 39.5 | ||
| Ethnic origins (%)a | |||
| Metropolitan France | 66.4 | 60.8 | |
| French overseas departments | 3.2 | 2.1 | |
| Southern Europe | 3.5 | 3.6 | |
| Northern Africa | 7.6 | 8.3 | |
| Sub-Saharan Africa | 2.5 | 2.6 | |
| Asia | 3.1 | 3.1 | |
| Other | 3.0 | 2.9 | |
| Education (%)a | |||
| Primary | 9.8 | 9.4 | |
| Secondary | 37.5 | 32.3 | |
| High school and university | 31.7 | 30.1 | |
| Other | 4.3 | 4.2 | |
| Number of siblings (%) | |||
| No siblings | 47.9 | ||
| 1-2 siblings | 46.1 | ||
| ≥ 3 siblings | 6.0 |
ETS Exposure to Tobacco Smoke
aTotals do not sum to the sample size due to missing data