Table 1.
Overview of Mean Demographic Data and Questionnaire Scores for Healthy Controls and the aADHD MPH and Placebo Groups
| First Appointment | First Appointment | Second Appointment | |||||
|---|---|---|---|---|---|---|---|
| All Participants | Controls | ADHD | aADHD Group | Placebo | MPH | Placebo | MPH |
| Participants (male) | 29 (13) | 29 (18) | Participants (male) | 14 (8) | 15 (10) | 13 (7) | 14 (9) |
| Mean age | 33.3 (9.3) | 36.1 (9.9) | Mean age | 35.5 (10.1) | 36.7 (10.0) | 36.4 (9.9) | 37.3 (10.1) |
| Mean school years | 11.1 (1.8) | 10.8 (1.6) | Mean school years | 10.5 (1.4) | 11.2 (1.8) | 10.5 (1.5) | 11.4 (1.7) |
| SPM raw score | 50.7 (4.9) | 49.4 (7.0) | SPM raw score | 49.0 (8.0) | 49.8 (6.1) | 49.2 (8.2) | 49.6 (6.3) |
| ASRS | CAARS DSM-IV Symptoms | ||||||
| Inattention | 11.2 (4.6)*** | 24.0 (4.8)*** | Inattentive | 77.4 (10.0) | 80.0 (9.1) | 69.1 (12.8) | 61.6 (12.7) |
| Hyperactivity/Impulsivity | 9.7 (5.4)*** | 18.7 (6.2)*** | Hyperactive/impulsive | 65.3 (13.0) | 55.8 (15.1) | 56.1 (13.9) | 45.1 (11.9) |
| Total | 75.9 (11.3) | 71.5 (11.7) | 64.7 (13.8) | 54.5 (12.6) | |||
| HAM-A | 9.3 (8.5) | 8.5 (8.0) | 6.0 (5.1) | 7.0 (7.0) | |||
| HAM-D | 5.5 (5.8) | 4.6 (6.0) | 2.4 (2.3) | 3.9 (6.0) | |||
Abbreviations: ASRS: Adult ADHD Self-Report Scale; CAARS: Conners’ Adult ADHD Rating Scales; HAM-A: Hamilton Anxiety Rating Scale; HAM-D: Hamilton Depression Rating Scale; MPH: Methlyphenidate; SPM: Standard Progressive Matrices.
Standard deviation is noted in parentheses unless stated otherwise.
*** significant between-group differences, P ≤ .001.