Characteristic or exposure | OR (95% CI) | p Value |
Sex | ||
Female | 0.84 (0.62 to 1.12) | 0.235 |
Male | 1.00 | – |
Maternal asthma | 0.64 (0.46 to 0.90) | 0.009 |
Eczema | ||
Childhood onset | 0.68 (0.46 to 0.96) | 0.030 |
Later life onset | 0.66 (0.47 to 0.91) | 0.012 |
None | 1.00 | – |
Allergic rhinitis | ||
Childhood onset | 0.38 (0.25 to 0.58) | <0.001 |
Later life onset | 0.42 (0.29 to 0.63) | <0.001 |
None | 1.00 | – |
Childhood pneumonia | 0.96 (0.70 to 1.320) | 0.789 |
Childhood chronic bronchitis | 0.56 (0.40 to 0.77) | <0.001 |
Impaired lung function (at age 7 years) | 0.80 (0.42 to 1.53) | 0.503 |
Life stage at asthma onset | ||
Childhood | 3.69 (2.52 to 5.40) | <0.001 |
Adolescence | 1.30 (0.72 to 2.32) | 0.382 |
Adult | 1.00 | – |
Adult smoking | ||
Ever smoking | 1.31 (0.98 to 1.75) | 0.070 |
Never smoking | 1.00 | – |
Passive adult smoking | ||
Yes | 0.77 (0.55 to 1.07) | 0.121 |
No | 1.00 | – |
Adult socio-economic status | ||
Level 1 (highest) | 1.00 | – |
Level 2 | 1.00 (0.60 to 1.67) | 0.988 |
Level 3 | 0.92 (0.60 to 1.41) | 0.698 |
Level 4 | 0.84 (0.56 to 1.27) | 0.411 |
Level 5 (lowest) | 0.73 (0.49 to 1.08) | 0.114 |
p-trend 0.104 |
Significant results are shown in bold.
↵* The model contains variables from table 1 with a p value ≤0.15.