Fig. 1

1a and 1b sIgE concentration by ImmunoCAP and Immulite. with correlation and 95% CI. * P < 0.001 (P values were calculated using Spearman’s correlation coefficient). 1c and 1d. Linear weighted regression (Table 2) for HDM (1a) and EW (1b) on dilution linearity with patient serum. The observed (O) results from the analyzes in each dilution series (1/2, 1/4 and 1/8) were divided by the expected (E) value derived from the measured IgE concentration in the undiluted sample. Finally, for each patient and based on the three O/E ratios, an average value was calculated. The closer to the value 1 on the Y axis, the more accurate is the test