Table E1.
Risk of asthma by age 7 years in relation to lower respiratory tract infections within the first year of life
| Explanatory variable | No. of cases/no. of control subjects | Unadjusted OR (95% CI); P value | Adjusted for the total no. of respiratory episodes, OR (95% CI); P value |
|---|---|---|---|
| Rhinovirus | 56/273 | 2.86 (1.42-5.75); .003 | 0.89 (0.35-2.27); .81 |
| RSV | 52/277 | 2.82 (1.38-5.77); .005 | 1.26 (0.54-2.91); .59 |
| Coronavirus | 26/303 | 1.97 (0.75-5.21); .17 | 0.70 (0.23-2.17); .54 |
| Other virus | 57/272 | 3.15 (1.58-6.28); .001 | 1.20 (0.50-2.86); .68 |
| Any virus | 117/212 | 2.74 (1.45-5.17); .002 | 0.89 (0.36-2.18); .79 |
| Any pathogenic bacteria | 128/201 | 2.85 (1.50-5.40); .001 | 1.30 (0.60-2.82); .51 |
| No. of children with and without any episodes (clinic visit) | Adjusted for any virus or bacterial infection, OR (95% CI); P value | ||
| Respiratory episode (any) | 163/166 | 1.63 (1.34-1.99); <.001 | 1.63 (1.25-2.12); .0003 |
Values in boldface indicate statistical significance.