Table 1.
Demographic Characteristics.
| ADHD (n = 36) |
TD (n = 29) |
Corrected p-values | |
|---|---|---|---|
| Age in years, mean (SD) | 9.70 (1.18) | 10.23 (1.51) | 0.44 |
| FSIQa, mean (SD) | 113.2 (12.6) | 116.8 (11.8) | 0.53 |
| Word Readingb, mean (SD) | 113.6 (10.6) | 116.0 (10.5) | 0.44 |
| Sex (M/F) | 19/17 | 17/12 | 0.74 |
| Race | 0.87 | ||
| Asian | 2 | 2 | |
| Black/African American | 1 | 1 | |
| White/Caucasian | 30 | 25 | |
| Multiracial | 3 | 1 | |
| Family Income | 0.44 | ||
| < $24,999 | 1 | 1 | |
| $25,000-$74,999 | 6 | 3 | |
| > $75,000 | 28 | 22 | |
| Don’t know/did not respond | 1 | 3 | |
| Parental Education | 0.44 | ||
| High school diploma/GED | 4 | 1 | |
| Associate degree | 1 | 0 | |
| Bachelor’s degree | 15 | 7 | |
| Master’s degree | 7 | 9 | |
| Doctoral or professional degree | 8 | 12 | |
| Did not respond | 1 | 0 |
Frequencies are presented for race, family income, and parental education categories. Two typically developing (TD) participants did not complete the WISC-IV or WIAT-III (M, 8.2 y; M, 10.4 y). Welch’s t-tests for unequal variance were used to compare groups on age, FSIQ, and word reading scores. Two-sample chi-squared tests were used to compare groups on sex, race, family income, and parental education. Tests were FDR-corrected for seven comparisons.
a
FSIQ derived from the Wechsler Intelligence for Children, Fifth Edition (WISC-V, Wechsler, 2014).
b
Word reading (standard score) derived from the Wechsler Individual Achievement Test, 3rd addition (WIAT-III, Wechsler, 1992).