Multivariate analysis for the persistence of early life wheezing
| Risk factors | p‐value | OR | 95% CI |
| Recurrent chest infections at 2 yrs | 0.034 | 1.99 | 1.05–3.77 |
| Family history of asthma | 0.010 | 2.31 | 1.22–4.37 |
| Atopic SPT at 4 yrs | <0.001 | 5.73 | 2.95–11.12 |
| Nasal symptoms at 1 yr | 0.039 | 0.43 | 0.19–0.96 |
Risk factors for persistence of early life wheezing refer to comparison of risk factors for persistent with those for early transient wheezing
OR: odds ratio
CI: confidence interval
Only factors that showed a significant effect at the final step of the regression model are shown
Factors entered into the regression model were atopic skin-prick test (SPT) at 4 yrs, recurrent chest infections at 2 yrs, exclusively formula fed, food allergy at 1 yr, food allergy at 2 yrs, nasal symptoms at 1 yr, cat owned at birth, dog owned at birth, family history of asthma, sibling eczema, eczema at 1 yr, eczema at 4 yrs, rhinitis at 4 yrs, maternal smoking at birth, parental smoking at 1 yr and parental smoking at 4 yrs