Table 1.
Aggregate Data of Study and Participant Characteristics for Included Studies.
| Evaluated characteristics | Units | ASD group | ADHD group | TD group |
|---|---|---|---|---|
| Articles reporting each group | K (%) | 58 (100.0) | 58 (100.0) | 58 (100.0) |
| Total sample size | N (%) | 2,092 (23.5) | 2,800 (31.5) | 3,367 (37.8) |
| Total female participants | N (%) | 217 (11.2) | 538 (27.9) | 1,035 (53.6) |
| Age | Mean (SD) | 10.3 (1.9) | 9.8 (1.8) | 10.1 (1.8) |
| Range | 3.5–18.9 | 3.3–18 | 3.5–18.33 | |
| Articles reporting stimulant medication use on the day of testing | ||||
| No | K (%) | 41 (70.7) | 41 (70.7) | — |
| Yes | K (%) | 1 (1.7) | 2 (3.4) | — |
| Not reported | K (%) | 16 (27.6) | 15 (25.9) | — |
Note. A total of 58 primary research articles, involving 8,259 participants with an average age of 9.5 (SD = 1.8) years old. Data collected for three groups including autism spectrum disorder (ASD), ADHD, and typically developing (TD). N = number of participants; K = number of articles.