Prevalence of symptoms in boys and girls
| Symptom | Prevalence (%) | Adjusted odds ratio (boys = 1.00) | 95% Confidence intervals | ||||
|---|---|---|---|---|---|---|---|
| Boys | Girls | ||||||
| Wheeze in past year | 32.4 | 35.3 | 1.11*** | (1.06 to 1.18) | |||
| Speech limiting wheeze | 8.2 | 9.5 | 1.15** | (1.05 to 1.26) | |||
| Wheeze without colds | 20.8 | 22.0 | 1.05 | (0.98 to 1.12) | |||
| Rhinitis, itchy eyes | 15.8 | 20.8 | 1.39*** | (1.31 to 1.49) | |||
| Spring/summer rhinitis | 5.2 | 7.3 | 1.40*** | (1.26 to 1.55) | |||
| Cough without colds | 28.5 | 30.3 | 1.08*** | (1.02 to 1.14) | |||
| Phlegm with colds | 56.9 | 65.5 | 1.42*** | (1.35 to 1.50) | |||
| Phlegm without colds | 21.7 | 20.8 | 0.91** | (0.86 to 0.97) | |||
| > 3 colds in last year | 23.1 | 31.5 | 1.51*** | (1.43 to 1.60) | |||
| Dry night cough without colds | 43.4 | 47.4 | 1.14*** | (1.09 to 1.20) | |||
1-150 p<0.05,** p<0.01,*** p<0.001.
Odds ratios are adjusted for age, region, and all the environmental factors in subsequent tables.