| | Total (n=5434) | Males (n=2501) | Females (n=2933) | Chi-square males vs females |
| Wheeze | 10.2%(555) | 9.8%(246) | 10.5%(309) | p=ns |
| Wheeze with breathlessness | 3.8%(206) | 3.0%(74) | 4.5%(132) | p<0.01 |
| Wheeze without a cold | 2.9%(160) | 2.7%(68) | 3.1%(92) | p=ns |
| Waking with tightness in the chest | 7.2%(392) | 6.9%(172) | 7.5%(220) | p=ns |
| Waking with breathlessness | 7.6%(412) | 7.0%(175) | 8.1%(237) | p=ns |
| Waking with cough | 9.2%(499) | 8.4%(210) | 9.9%(289) | p=ns |
| Attack of asthma | 3.9%(211) | 4.2%(105) | 3.6%(106) | p=ns |
| Treatment for asthma | 3.9%(210) | 4.1%(103) | 3.6%(107) | p=ns |
| Nasal allergies | 6.3%(340) | 5.9%(147) | 6.6%(193) | p=ns |
| Diagnosed asthma | 4.1%(222) | 4.4%(111) | 3.8%(111) | p=ns |