Characteristics of study subjects at baseline
| Age(years) | Sex | FEV1(% pred) | PC20(mg/ml) | |
|---|---|---|---|---|
| FEV1 = forced expiratory volume in 1 second; PC20 = concentration of methacholine required to provoke a fall in FEV1 of 20% or more. | ||||
| Asthmatics | 34 | M | 92 | 0.04 |
| 28 | F | 87 | 0.07 | |
| 36 | M | 76 | 0.17 | |
| 31 | M | 81 | 0.33 | |
| 36 | M | 77 | 0.05 | |
| 36 | M | 80 | 1.5 | |
| 31 | M | 80 | 0.18 | |
| 51 | M | 104 | 0.2 | |
| 27 | M | 77 | 1.4 | |
| 28 | M | 99 | 1.8 | |
| Mean (SE) | 33.8 (2.2) | 9M/1F | 85.3 (3.1) | 0.57 (0.2) |
| Controls | 51 | M | 98 | |
| 83 | M | 85 | ||
| 52 | M | 109 | ||
| 53 | M | 127 | ||
| 41 | M | 91 | ||
| 46 | M | 110 | ||
| 52 | M | 88 | ||
| 65 | M | 97 | ||
| Mean (SE) | 55.4 (4.6) | 8M/0F | 100.6 (4.9) | |