Mean results obtained for three groups of cystic fibrosis patients, 13 with ABPA, 3 with other fungal diseases, and 45 without ABPA. The mean values of IgE detection using rAspf4 and rAspf6, as well as specific IgG ELISA detection, were multiplied by 10; total IgE detection was multiplied by 10−2 in order to obtain the same range values. The results of the samples collected before diagnosis of proven ABPA were excluded. Significant differences between the ABPA patient group and the control group (patients without ABPA) were observed. **, P < 0.001 for rAspf4, specific IgG, and total IgE; *, P < 0.05 for rAspf6. No significant difference was observed for the detection of Aspergillus in the sputum. Statistical analysis was not performed for the group of three patients with bronchitis or sinusitis, as it was too small.