Figure 2.

The visual attention (measured by Conner’s CPT) and auditory attention (measured by CATA) of children with ADHD and with atopic disease (ADHD+ Allergy+ group, n = 41), children with ADHD and without allergy (ADHD+ Allergy− group, n = 74), children without ADHD and with allergy (ADHD− Allergy+ group, n = 23), and children without ADHD and without allergy (ADHD− Allergy− group, n = 49). Multivariate analysis of covariance (MANCOVA) was used to compare CPT and CATA indices among the four groups of children, with age and gender as covariates. The CPT Omission scores (F₃₂₁₉ = 2.97, p = 0.033), CATA Omission scores (F₃₂₁₉ = 3.58, p = 0.015), and CATA Detectability scores (F₃₂₁₉ = 8.53, p < 0.001) showed significant group differences. * p < 0.05, ** p < 0.01 for post-hoc group comparison. The CATA Omission scores in the ADHD+ Allergy− group were higher than those in the ADHD− Allergy− group. Furthermore, the CATA Commission scores in the ADHD+ Allergy− group were higher than those in the ADHD− Allergy+ group. Regardless of the presence of atopic diseases, children with ADHD (ADHD+ Allergy+ group and ADHD+ Allergy− group) showed higher CATA Detectability scores than children without ADHD (ADHD− Allergy+ group and ADHD− Allergy− group).