TABLE 2. PARTICIPANT CHARACTERISTICS OVERALL AND BY MEDICATION GROUP.
| AH ADHD (N = 616) | SHORT-ACTING (N = 166) | LONG-ACTING (N = 201) | AUGMENTERS (N = 249) | |
|---|---|---|---|---|
| Age (years) | ||||
| Mean (SD) | 39.0 (12.4) | 38.8 (13.2) | 40.0 (13.3) | 38.5 (11.1) |
| Range | 18–74 | 19–70 | 18–74 | 18–67 |
| Gender, n (%) | ||||
| Male | 183 (29.7) | 44 (26.5) | 52 (25.9) | 87 (34.9) |
| Female | 433 (70.3) | 122 (73.5) | 149 (74.1) | 162 (65.1) |
| Racial background, n (%) | ||||
| White | 551 (89.4) | 154 (92.8) | 183 (91.0) | 214 (85.9) |
| Other | 65 (10.6) | 12 (7.2) | 18 (9.0) | 35 (14.1) |
| Relationship status, n (%) | ||||
| Married or living with a partner | 338 (54.9) | 88 (53.0) | 111 (55.2) | 139 (55.8) |
| Employment status, n (%) | ||||
| Employed, full time | 349 (56.7) | 96 (57.8) | 107 (53.2) | 146 (58.6) |
| Employed, part time | 66 (10.7) | 17 (10.2) | 20 (10.0) | 29 (11.6) |
| Self-employed | 37 (6.0) | 13 (7.8) | 7 (3.5) | 17 (6.8) |
| Student | 32 (5.2) | 8 (4.8) | 12 (6.0) | 12 (4.8) |
| Stay-at-home parent/homemaker | 33 (5.4) | 2 (1.2) | 18 (9.0) | 13 (5.2) |
| Unemployed | 24 (3.9) | 6 (3.6) | 14 (7.0) | 4 (1.6) |
| Retired | 27 (4.4) | 9 (5.4) | 12 (6.0) | 6 (2.4) |
| Disabled | 48 (7.8) | 15 (9.0) | 11 (5.5) | 22 (8.8) |
| Currently attending school/ taking classes, n (%) | ||||
| Yes | 129 (20.9) | 35 (21.1) | 36 (17.9) | 58 (23.3) |
| No | 487 (79.1) | 131 (78.9) | 165 (82.1) | 191 (76.7) |
| Self-reported ADHD severity, n (%) | ||||
| Very mild | 28 (4.5) | 4 (2.4) | 4 (2.0) | 20 (8.0)* |
| Mild | 94 (15.3) | 27 (16.3) | 29 (14.4) | 38 (15.3) |
| Moderate | 338 (54.9) | 94 (56.6) | 126 (62.7) | 118 (47.4) |
| Severe | 128 (20.8) | 33 (19.9) | 35 (17.4) | 60 (24.1) |
| Very severe | 28 (4.5) | 8 (4.8) | 7 (3.5) | 13 (5.2) |
| Age at diagnosis (years) | ||||
| Mean (SD) | 27.8 (14.6) | 28.9 (15.5) | 28.4 (15.5) | 26.7 (13.3) |
| Range | 0–69 | 2–62 | 3–69 | 0–60 |
| Number of comorbidities, n (%) | ||||
| None | 209 (33.9) | 60 (36.1) | 73 (36.3) | 76 (30.5) |
| One | 159 (25.8) | 44 (26.5) | 42 (20.9) | 73 (29.3) |
| Two | 138 (22.4) | 37 (22.3) | 50 (24.9) | 51 (20.5) |
| Three or more | 110 (17.9) | 25 (15.1) | 36 (17.9) | 49 (19.7) |
Note: *P < 0.05,
**P < 0.001 group comparison.
Abbreviations: ADHD, Attention-deficit/hyperactivity disorder; SD, standard deviation.