Patient characteristics
| Age | Sex | Atopy | FEV1(litres) | FEV1 (% pred) | PC20 (mg/ml) | |
|---|---|---|---|---|---|---|
| Healthy volunteers | ||||||
| 1 | 20 | F | N | 3.68 | 117.5 | <16 |
| 2 | 19 | F | N | 3.80 | 100 | >16 |
| 3 | 21 | F | N | 4.16 | 107 | >16 |
| 4 | 21 | M | N | 4.67 | 101 | >16 |
| 5 | 24 | F | N | 3.53 | 109 | >16 |
| 6 | 26 | F | N | 4.24 | 115 | >16 |
| 7 | 33 | M | N | 4.05 | 110 | >16 |
| 8 | 21 | F | N | 3.57 | 107 | >16 |
| Mean | 23.1 | 4.00 | 108.3 | >16 | ||
| SD | 1.6 | 0.15 | 2.2 | |||
| Non-steroid treated asthmatics | ||||||
| 1 | 23 | M | Y | 2.18 | 51.9 | 0.16 |
| 2 | 44 | M | Y | 2.50 | 70.9 | 0.093 |
| 3 | 38 | M | Y | 2.65 | 61.4 | 0.05 |
| 4 | 20 | M | Y | 2.45 | 75.1 | 0.45 |
| 5 | 45 | M | Y | 4.15 | 94.2 | 0.03 |
| 6 | 37 | M | Y | 4.05 | 87.5 | 0.63 |
| 7 | 31 | M | Y | 3.75 | 84.6 | 0.72 |
| 8 | 31 | F | Y | 2.55 | 76.3 | 0.10 |
| 9 | 28 | F | Y | 2.9 | 86.6 | 0.05 |
| Mean | 31 | 3.0 | 76.5 | 0.14 | ||
| SD | 8.7 | 0.8 | 3.75 | (0.04–0.46) | ||
| Steroid treated asthmatics | ||||||
| 1 | 56 | F | N | 1.89 | 77.5 | 0.34 |
| 2 | 60 | F | Y | 0.83 | 40.3 | ND |
| 3 | 64 | F | Y | 0.97 | 41.8 | ND |
| 4 | 36 | M | N | 1.85 | 50.4 | ND |
| 5 | 55 | F | Y | 1.12 | 39.7 | ND |
| 6 | 33 | M | N | 2.78 | 65.9 | 0.87 |
| 7 | 56 | M | N | 1.33 | 46.0 | ND |
| 8 | 20 | F | Y | 3.32 | 86.4 | 0.29 |
| Mean | 47.5 | 1.76 | 56.0 | |||
| SD | 15.7 | 0.32 | 6.45 | |||
PC20 = geometric mean + (range); ND = not done.