Table 1.

Demographic Characteristics

Note.—BRIEF-Parent = Behavioral Rating Inventory of Executive Function-Parent Version, CPRS-R:L = Conners Parent Rating Scale-Revised-Long Version, FSIQ = full scale IQ, PIQ = performance IQ, VIQ = verbal IQ, WASI = Wechsler Abbreviated Scale of Intelligence.

^*Except where indicated, data are means ± standard deviations.

^†Except where indicated, data are P values.

^‡Data are numbers of subjects, with percentages in parentheses.

^§Fisher exact test (two sided: ADHD-medicated subgroup vs ADHD-nonmedicated subgroup).

^‖Pearson χ² (df = 1, n = 22) = 0.0 (two sided: ADHD-medicated subgroup vs ADHD-nonmedicated subgroup).

^#Exact Pearson χ² (df = 2, n = 49) = 2.8 (two sided: control group, ADHD-medicated subgroup, ADHD-nonmedicated subgroup).

^**One-way analysis of variance (control group, ADHD-medicated subgroup, ADHD-nonmedicated subgroup).

^††Two-tailed Mann-Whitney U test P values (ADHD subgroup vs control group) following Kruskal-Wallis test, P < .001 (control group, ADHD-medicated subgroup, ADHD-nonmedicated subgroup).

^‡‡Two-tailed Mann-Whitney U test (ADHD-medicated subgroup vs ADHD-nonmedicated subgroup).