Mean (SD) characteristics of study subjects
| 1994 | 1995 | |||||||
|---|---|---|---|---|---|---|---|---|
| FP (n=11) | Placebo (n=10) | p value1-150 | FP (n=25) | BDP (n=23) | Placebo (n=24) | p value1-150 | ||
| Age (years) | 18.4 | 16.2 | NS | 20.5 | 17.1 | 19.7 | 0.03 | |
| F:M | 7:4 | 6:4 | NS | 16:9 | 14:9 | 15:9 | NS | |
| FEV1 (% pred) | 109 (10) | 102 (15) | NS | 104 (17) | 101 (16) | 100 (10) | NS | |
| logPD20(μg) | 2.43 (0.8) | 2.41 (0.4) | NS | 2.24 (0.9) | 2.02 (0.9) | 2.29 (0.8) | NS | |
| Birch pollen1-150 | 91% | 70% | NS | 64% | 57% | 42% | NS | |
FP = fluticasone propionate; BDP = beclomethasone dipropionate; FEV1 = forced expiratory volume in one second; PD20 = dose of methacholine causing a fall in FEV1 of 20% or more; NS = not significant.
↵1-150 p values from 1994 are based on the Student'st test for independent groups and from 1995 on ANOVA, except those for birch pollen which are based on χ2 testing for both years.