Table 2.

The relationship between of serum IL-8 and other clinical parameters of 246 uncontrolled asthma patients

Parameters	r2	P value
Blood neutrophil counts(×109/L)	0.08939	0.0004
Blood neutrophil percentage (%)	0.03532	0.0273
TNF-α(pg/ml)(<8.1)	0.1958	< 0.0001
IL-6(pg/ml)(<5.9)	0.01359	0.1083
Post-FEV1/FVC	0.05076	0.0103
The change rate of FEV1 after bronchodilation	0.05668	0.0073