Table 3.
Analysis of asthma among children participating in BAMSEa
| At age 8 years (n=2,339) | At age 12 years (n=2,290) | |||
|---|---|---|---|---|
|
|
||||
| Odds ratio (95% confidence interval), P value | ||||
| Unadjusted | Adjusted | Unadjusted | Adjusted | |
| Male sex | 1.6 (1.1–2.3), 0.02 | 1.5 (1.0–2.2), 0.04 | 2.0 (1.4–3.0), <0.01 | 1.9 (1.3–2.8), <0.01 |
| Parental asthmab | 2.6 (1.7–3.8), <0.01 | 2.5 (1.7–3.7), <0.01 | 2.6 (1.8–3.9), <0.01 | 2.5 (1.7–3.7), <0.01 |
| Obesity at age 4 years | 1.8 (1.0–3.0), 0.04 | 1.7 (1.0–3.0), 0.06 | 1.6 (0.9–2.8), 0.09 | 1.5 (0.9–2.7), 0.15 |
| Allergic rhinitis at age 4 yearsd | 6.1 (2.7–14.0), <0.01 | 5.1 (2.2–11.8), <0.01 | 9.2 (4.2–20.4), <0.01 | 7.8 (3.5–17.6), <0.01 |
| Early-life second hand smoke (SHS)e | 1.1 (0.8–1.7), 0.52 | 1.1 (0.7–1.7), 0.60 | 1.4 (1.0–2.1), 0.08 | 1.4 (0.9–2.1), 0.09 |
a
The Children, Allergy, Milieu, Stockholm, Epidemiological Survey
b
Paternal or maternal history of asthma
c
A body mass-index z-score >95th percentile
d
Physician-diagnosed allergic rhinitis and naso-ocular symptoms apart from colds in the previous year
e
In utero or before age 2 years;