Table 1

Clinical characteristics of patients with asthma

Exacerbation
(n=21)
Stable
(n=21)
PEF = peak expiratory flow.
*Data are presented as mean (SE).
†Classification of the severity of asthma based on GINA guidelines: step 1=intermittent; step 2=mild persistent; step 3=moderate persistent.
‡p<0.0001 v patients with stable asthma (Mann-Whitney U non-parametric test).
Sex (M/F)11/109/12
Age (years)*41.3 (4.3)38.8 (3.9)
Asthma duration (years)*12.4 (2.7)14.1 (2.7)
Atopic/non-atopic16/516/5
Step 1/2/3†7/8/64/9/8
Morning PEF (% personal best)*56.9 (2.1)‡87.2 (1.8)