Table 2.

Comparison of patients with stable asthma and exacerbation

	Stable asthma	Asthma exacerbation	p value
Age (years)	49.7 ± 14.7	51.8 ± 17.4	0.49
Gender (women:men)	89:41	27:10	0.59
FEV1/FEV1 predicted (%)	83.7 ± 18.4	66.5 ± 19.8	<0.001
White blood count (109/l)	7.5 ± 2.4	10.1 ± 5.3	<0.001
Number of eosinophils (109/l)	0.41 ± 0.9	0.22 ± 0.29	0.07
Number of neutrophils (109/l)	5.2 ± 7.8	7.1 ± 5.4	<0.001
CRP (mg/l)	4.2 ± 10.4	6.4 ± 7.0	<0.001
YKL-40 (U/l)	59.6 ± 50.8	91.8 ± 57.1	<0.001

Data are presented as mean values ± SD

Bold values are statistically significant (p < 0.005)