Table 1.
Baseline demographic and clinical characteristics of the two groups.
| HC (N = 77) | ADHD (N = 82) | t or Χ2 | Significance | |
|---|---|---|---|---|
| Demographic variable; N (%) | ||||
| Female gender | 41 (53) | 68 (83) | 16.23 | <0.001 |
| Right-handed * | 70 (91) | 73 (88) | 0.436 | 0.509 |
| Active LSI | 67 (87) | 70 (85) | 0.090 | 0.764 |
| Age (years) M (SD) | 23.01 (4.29) | 26.62 (5.26) | 3.576 | <0.001 |
| Education (years) M (SD) | 5.36 (3.24) | 5.32 (3.06) | 0.093 | 0.926 |
| Resting Heart Rate (bpm) M (SD) | 67.97 (8.56) | 74.44 (11.57) | 4.03 | <0.001 |
| Clinical Characteristics M (SD) | ||||
| ASRS Total | 21.29 (9.17) | 54.70 (7.68) | 24.96 | <0.001 |
| ASRS-Inattention | 11.97 (5.10) | 29.73 (3.86) | 24.86 | <0.001 |
| ASRS-Hyperactivity-Impulsivity | 9.29 (5.00) | 24.99 (5.56) | 18.67 | <0.001 |
* Chi-square compared only right- and left-handed individuals because only one participant reported being ambidextrous.