The ICT peak height values gave a mean (95% confidence interval) AUROCC of 0.70 (0.56–0.84) for a positive Asp IgG, 0.79 (0.67–0.90) for a positive Asp IgE test, 0.70 (0.53–0.87) for blood eosinophilia (> 0.5 × 109 cells/l, Fig. 4), and (0.60 [0.41–0.80]) for a positive total IgE (> 1000 kUA/ml). Here, IGHE is linked to Increased total eosinophil count.