Prevalence of late onset wheeze in 429 subjects divided into subgroups according to the age at which atopy was acquired
| Age when atopy acquired | No of subjects | Late onset wheeze (%) | Adjusted odds ratio* | 95% CI for odds ratio |
|---|---|---|---|---|
| *Adjusted for AHR at age 8–12 years, sex, and parental history of asthma. | ||||
| Never | 231 | 9.5 | 1.00 | |
| >12 years | 90 | 14.4 | 1.75 | 0.84 to 3.68 |
| 10–12 years | 41 | 19.5 | 2.33 | 0.94 to 5.81 |
| <10 years | 67 | 28.4 | 3.93 | 1.92 to 8.05 |
| p value for trend | <0.001 | |||