Distribution of subjects at recruitment and the age of 50
| Recruitment n=479 | Age 50 | |||
|---|---|---|---|---|
| Deceased n=21 | Followed up n=346 (76%) | Lung function test performed n=197 (43%) | ||
| Control (non-asthmatics) | 105 (22%) | 5 | 77 (22%) | 48 (24%) |
| Mild wheezy bronchitis | 74 (15%) | 3 | 50 (14%) | 23 (12%) |
| Wheezy bronchitis | 104 (22%) | 6 | 78 (23%) | 43 (22%) |
| Asthma | 113 (24%) | 2 | 81 (24%) | 49 (25%) |
| Severe asthma | 83 (17%) | 5 | 60 (17%) | 34 (17%) |
| Male (%) | 61% | 81% | 60% | 63% |
Note that five original records were lost, altering the recruitment total to 479 subjects and 21 subjects were deceased, leaving 458 survivors. The percentages followed up are based on the survivors.