Mean difference FP/S − FP | p value | |
---|---|---|
Values are expressed as *mean or †geometric mean (SE). | ||
PEF, peak expiratory flow; FEV1, forced expiratory volume in 1 second; PC20histamine, concentration of histamine provoking a fall in FEV1 of at least 20%. | ||
PEF morning (l/min)* | 29 (9) | <0.001 |
PEF evening (l/min)* | 36 (9) | <0.001 |
Symptom score morning (scale 0–4)* | −0.1 (0.1) | 0.02 |
Symptom score evening (scale 0–5)* | −0.2 (0.1) | 0.01 |
Short acting β2 agonist usage(puffs/day)* | −0.9 (0.3) | <0.001 |
FEV1 (% predicted)* | 2.7 (1.5) | 0.07 |
PC20histamine (doubling doses)† | 0.7 (0.3) | 0.02 |