Healthy Lifestyle Index, child and family characteristics, International Study of Asthma and Allergies in Childhood phase III (n=70 795)
| Healthy Lifestyle Index components | |
| No parental smoking | 40 357 (57.0) |
| Child’s healthy body mass index | 52 481 (74.1) |
| Child’s adherence to Mediterranean diet | 29 084 (41.1) |
| Child’s physical activity | 43 836 (61.9) |
| Child’s no sedentary behaviour | 11 691 (16.5) |
| Child’s health outcomes | |
| Current wheeze, yes | 7343 (10.5) |
| Missing data | 808 |
| Asthma ever, yes | 6990 (10.1) |
| Missing data | 1426 |
| Current symptoms of rhinoconjunctivitis | 6438 (10.9) |
| Missing data | 11 704 |
| Hay fever ever, yes | 7031 (10.5) |
| Missing data | 3965 |
| Current symptoms of eczema | 5612 (8.5) |
| Missing data | 4 648 |
| Eczema ever, yes | 12 352 (18.6) |
| Missing data | 4288 |
| Region of the world | |
| Western Europe | 21 002 (29.6) |
| Northern and Eastern Europe | 8478 (12.0) |
| Eastern Mediterranean | 9474 (13.4) |
| Latin America | 19 825 (28.0) |
| Asia Pacific | 8615 (12.2) |
| Oceania | 3401 (4.8) |
| Gross national income | |
| Low income | 1438 (2.0) |
| Low middle income | 11 742 (16.6) |
| Upper middle income | 28 383 (40.1) |
| High income | 29 232 (41.3) |
| Maternal education level | |
| Primary | 13 246 (20.6) |
| Secondary | 28 390 (44.1) |
| Terciary | 22 716 (35.3) |
| Missing data | 6443 |
| Sex of the child | |
| Male | 35 122 (49.6) |
| Female | 35 673 (50.4) |
| Child’s age (years) | 6.6 (0.5) |
| Ever breastfed | 53 496 (79.7) |
| Missing data | 3645 |
| Siblings, yes | 54 369 (83.6) |
| Missing data | 5803 |
| Pets at home, yes | 23 765 (35.9) |
| Missing data | 4663 |
| Paracetamol use for fever, yes | 44 464 (64.9) |
| Missing data | 2315 |
Data are n (%) or mean (SD).