(Fisher’s exact p = .050). The two groups did not differ on sex, ethnicity, country of origin, or age. The combined AE group differed from the ADHD group on age, sex, race, ethnicity, country of origin, growth variables, microcephaly, measures of structural abnormality, presence of an ADHD diagnosis, and FSIQ. These two groups did not differ on handedness. Specific statistical results are listed in Table 2. Differences in basic demographic characteristics are likely related to site characteristics (e.g., the South African site is exclusively non-White and non-Hispanic).
