Table 2.
Patient demographics and clinical characteristics
| Characteristic | Danderyd (n = 101) | Liljeholmen (n = 88) | Overall (N = 189) |
|---|---|---|---|
| Sex, n (%) | |||
| Female | 61 (60) | 46 (52) | 107 (57) |
| Male | 40 (40) | 42 (48) | 82 (43) |
| p valuea | 0.04 | ||
| Age, years | |||
| Mean (SD) | 33.7 (12.4) | 36.9 (12.0) | 35.2 (12.3) |
| Median (range) | 30 (18–72) | 36 (18–66) | 33 (18–72) |
| p valueb | 0.08 | ||
| Confirmed ADHD diagnosis, n (%) | |||
| Combined typec | 57 (56) | 57 (65) | 114 (60) |
| Predominantly inattentive typed | 37 (37) | 12 (14) | 49 (26) |
| Unspecified typee | 7 (7) | 19 (21) | 26 (14) |
| DIVA 2.0, mean number of symptoms (SD) | |||
| Attention deficitf (A1) | 7.8 (1.4) | 6.9 (2.3) | 7.4 (1.9) |
| Hyperactivity/impulsivityg (A2) | 5.3 (2.9) | 5.7 (2.5) | 5.5 (2.7) |
| Highest level of education, n (%) | |||
| Primary school | 36 (36) | 33 (38) | 69 (37) |
| Secondary school | 46 (46) | 28 (32) | 74 (39) |
| University | 11 (11) | 13 (15) | 24 (13) |
| Otherh | 8 (8) | 14 (16) | 22 (12) |
| Main source of income, n (%) | |||
| Full- or part-time employment | 32 (32) | 38 (43) | 70 (37) |
| Self-employment (full- or part-time) | 9 (9) | 9 (10) | 18 (10) |
| Sickness benefit (short- or long-term) | 23 (23) | 19 (22) | 42 (22) |
| Unemployment benefit | 12 (12) | 3 (3) | 15 (8) |
| Otheri | 25 (25) | 19 (22) | 44 (23) |
| Type of referral, n (%) | |||
| Self-initiated | 27 (27) | 13 (15) | 40 (21) |
| School | 1 (1) | 2 (2) | 3 (2) |
| Primary care | 13 (13) | 36 (41) | 49 (26) |
| Psychiatric department | 56 (55) | 28 (32) | 84 (44) |
| Other | 4 (4) | 7 (8) | 11 (6) |
| Missing | 0 (0) | 2 (2) | 2 (1) |
ADHD attention-deficit/hyperactivity disorder, DIVA 2.0 Diagnostic Interview for ADHD in Adults, second edition, ICD-10-SE International Statistical Classification of Diseases and Related Health Problems – 10th Revision, Swedish modification, SD standard deviation
aχ2 test was used to compare proportions of male and female patients between the two test sites
bt-test was used to compare the mean ages of patients enrolled at the two test sites
cICD-10-SE F90.0 B: ADHD, combined type
dICD-10-SE F90.0 C: ADHD, predominantly inattentive type
eICD-10-SE F90.0 X: ADHD, unspecified ADHD
fn = 163 (Danderyd, 91; Liljeholmen, 72)
gn = 157 (Danderyd, 86; Liljeholmen, 71)
h‘Other’ includes occupational (7%), other (4%), and missing (1%)
i‘Other’ includes ‘studying/student loan’ (7%), ‘other’ (13%), and ‘missing’ (4%)