Correlation of FEV1 to eosinophil, neutrophil, IL-5 and IL-8 levels in asthma.

<p>(A) Percentages of neutrophils and concentrations of IL-8 in BAL fluids of subjects with controlled asthma and uncontrolled asthma. (B) Correlations of concentrations of IL-8 with the percentages of neutrophils in the BAL fluid from all subjects with asthma (left panel). Correlation of percentages of neutrophils and concentrations of IL-8 in BAL fluid with percent predicted FEV₁ (middle and right panels, respectively). (C) Correlation of concentrations of IL-5 with the percentages of eosinophil in the BAL fluid from all subjects with asthma (left panel). Correlation of percentages of eosinophils and concentrations of IL-5 in BAL fluid with percent predicted FEV₁ (middle and right panels, respectively). Data are expressed as means ± SEM. * = <i>P</i> < .05, ** = <i>P</i> < .01, *** = <i>P</i> < .001, ***<i>* = P</i> < .0001.