Odds ratio, adjusted for age, for asthma in underweight, overweight and obese children in the representative sample compared with children of normal weight aged 4–11 years in 1982 and 1994
| Boys | Girls | ||||
|---|---|---|---|---|---|
| n | Odds ratio (95% CI) | n | Odds ratio (95% CI) | ||
| 1982 | |||||
| Total | 3458 | 3282 | |||
| Underweight | 767 | 1.66 (1.12 to 2.46) | 1100 | 1.17 (0.75 to 1.84) | |
| Normal weight (reference) | 2349 | 1.00 | 1888 | 1.00 | |
| Overweight | 799 | 2.15 (1.30 to 3.58) | 255 | 0.90 (0.38 to 2.13) | |
| Obese | 43 | 1.48 (0.35 to 6.22) | 39 | 1.00 (0.13 to 7.44) | |
| p value for trend with BMI SDS | 0.76 | 0.69 | |||
| 1994 | |||||
| Total | 4778 | 4578 | |||
| Underweight | 965 | 0.99 (0.78 to 1.25) | 1277 | 0.83 (0.63 to 1.10) | |
| Normal weight | 3110 | 1.00 | 2633 | 1.00 | |
| Overweight | 573 | 1.22 (0.93 to 1.59) | 554 | 0.95 (0.66 to 1.37) | |
| Obese | 130 | 1.79 (1.12 to 2.85) | 114 | 2.27 (1.33 to 3.88) | |
| p value for trend with BMI SDS | 0.003 | 0.011 | |||
| p value for BMI SDS/year interaction | 0.32 | 0.15 | |||