Table 1

Clinical parameters in cough variant asthma patients with and without inhaled corticosteroids


Without ICS
With ICS
P value
Total

Age (years)
53.3 ± 14.3
47.6 ± 12.0
0.3495
49.9 ± 12.9
Gender (male/female)
2/6
5/7
0.4439
7/13
Intreval of methcholine provocations (years)
2.7 ± 1.0
3.4 ± 2.8
0.5172
3.1 ± 2.2

2.9 (1.1–4.0)*
2.0 (0.5–8.0)*

2.0 (0.5–8.0)*
Duration of illness (months)
41.5 ± 51.9
23.6 ± 31.4
0.3466
30.8 ± 40.5

10.0 (2.0–120.0)*
12.5 (2.0–108.0)*

12.0 (2.0–120)*
Cough threshold (μM)
11.1 (1.63)**
6.2 (1.59)**
0.4163
7.8 (1.40)**
PC20-FEV1 (mg/ml)
2.13 (1.52)
1.80 (1.35)
0.7464
1.93 (1.27)
FVC (% predicted)
105.4 ± 14.3
103.1 ± 19.1
0.7765
104.0 ± 17.0
FEV1 (% predicted)
97.4 ± 15.2
93.2 ± 16.4
0.5763
94.9 ± 15.7
FEV1/FVC (%)
73.3 ± 6.9
78.1 ± 6.5
0.1318
76.2 ± 6.9

*; median (range), **; geometric mean (geometric standard error of the mean).

Fujimura et al. Cough 2005 1:5   doi:10.1186/1745-9974-1-5