Symptoms according to BMI quintile
| BMI quintile 1 | BMI quintile 2 | BMI quintile 3 | BMI quintile 4 | BMI quintile 5 | p value for trend | |
|---|---|---|---|---|---|---|
| The results are reported as prevalences with 95% confidence intervals. | ||||||
| Wheeze in last 12 months | ||||||
| Boys | 26.9 (23.3 to 30.5) | 23.6 (20.3 to 26.9) | 25.7 (22.3 to 29.1) | 25.5 (22.0 to 29.0) | 28.7 (25.0 to 32.4) | 0.33 |
| Girls | 19.2 (16.0 to 22.4) | 22.9 (19.5 to 26.3) | 22.2 (18.8 to 25.6) | 22.6 (19.3 to 26.0) | 25.1 (21.7 to 28.5) | 0.03 |
| Wheeze ever | ||||||
| Boys | 40.5 (36.5 to 44.5) | 41.0 (37.2 to 44.8) | 40.3 (36.4 to 44.2) | 45.6 (41.7 to 49.6) | 43.6 (39.5 to 47.7) | 0.09 |
| Girls | 29.9 (26.2 to 33.6) | 33.7 (29.9 to 37.5) | 33.6 (29.7 to 37.5) | 34.2 (30.4 to 38.0) | 39.4 (35.6 to 43.2) | 0.001 |
| Cough in last 12 months | ||||||
| Boys | 20.3 (17.0 to 23.6) | 21.3 (18.1 to 24.5) | 19.4 (16.3 to 22.5) | 23.9 (20.5 to 27.3) | 24.4 (20.9 to 28.0) | 0.06 |
| Girls | 19.3 (16.1 to 22.5) | 17.4 (14.4 to 20.5) | 22.7 (19.3 to 26.1) | 23.7 (20.3 to 27.1) | 26.5 (23.0 to 30.0) | 0.006 |
| Asthma ever diagnosed | ||||||
| Boys | 32.6 (28.8 to 36.4) | 34.1 (30.4 to 37.8) | 33.8 (30.1 to 37.5) | 35.6 (31.8 to 39.4) | 34.9 (31.0 to 38.8) | 0.32 |
| Girls | 25.5 (22.0 to 29.0) | 23.6 (20.2 to 27.0) | 26.7 (23.1 to 30.3) | 27.3 (23.7 to 30.9) | 28.9 (25.4 to 32.5) | 0.065 |
| Recent asthma | ||||||
| Boys | 20.2 (16.9 to 23.5) | 17.6 (14.6 to 20.6) | 19.2 (16.1 to 22.3) | 18.8 (15.7 to 21.9) | 21.1 (17.7 to 24.5) | 0.56 |
| Girls | 13.6 (10.8 to 16.4) | 14.1 (11.3 to 16.9) | 15.1 (12.2 to 18.0) | 15.1 (12.2 to 18.0) | 16.5 (13.6 to 19.4) | 0.14 |
| Medication use in last 12 months | ||||||
| Boys | 27.2 (23.6 to 30.8) | 25.8 (22.4 to 29.2) | 26.4 (22.9 to 29.9) | 27.0 (23.5 to 30.5) | 31.9 (28.1 to 35.8) | 0.13 |
| Girls | 19.2 (16.0 to 22.4) | 22.1 (18.8 to 25.4) | 21.0 (17.7 to 24.4) | 24.6 (21.2 to 28.1) | 25.2 (21.8 to 28.6) | 0.02 |