Characteristics (%) of the study population and the sample population
| Study population (n=450) | Sample population (n=2504) | |
|---|---|---|
| Mean age (years) | 10.0 | 9.5 |
| Sex (boys) | 50.0 | 48.9 |
| Itchy rash in last 12 months | 19.0 | 15.1 |
| Wheeze in last 12 months | 10.0 | 9.5 |
| Dry cough in last 12 months | 21.9 | 21.7 |
| Nasal discharge in last 12 months | 25.6 | 22.6 |
| Conjunctivitis in last 12 months | 10.9 | 7.9 |
| Phlegm in last 12 months | 11.3 | 9.7 |
| Eczema ever | 29.1 | 29.9 |
| Asthma ever | 9.0 | 8.1 |
| Hay fever ever | 8.2 | 7.3 |
| Doctor diagnosed bronchitis | 8.4 | 7.8 |