Table 1 Clinical profile of asthmatic patients (n = 467)

Number of subjects (n)

158

309

Age [year, mean (range)]

46.24 (17.93-76.86)

47.00 (15.40 - 77.88)

0.56

Sex (n, male/female)

55/103

100/209

0.60

Total smoker (Current Smoker; Ex-Smoker) (%)

27.21 (11.39; 15.82)

27.83 (11.33; 16.50)

0.93

Body mass index (kg/m²)

23.95 ± 3.00

24.53 ± 3.51

0.06

% fall of FEV₁ by aspirin provocation

12.22 ± 14.39

6.78 ± 11.46

< 0.0001

Blood eosinophil (%)

6.92 ± 6.23

5.98 ± 6.00

0.12

PC20 methacholine (mg/ml)

5.83 ± 8.87

6.88 ± 8.62

0.23

Total IgE (IU/ml)

298.35 ± 469.67

368.39 ± 654.01

0.19

FEV₁ (% predicted)

89.67 ± 15.76

91.79 ± 17.33

0.18

FVC (% predicted)

89.02 ± 12.65

87.68 ± 14.56

0.30

Positive rate of skin test (%)

51.90

57.61

0.24

Positive rate of aspirin intolerance (%)

41.77

15.53

< 0.0001