Table 1.
Demography, diagnosing physician, and prescriber of ADHD-specific medication.
| Age and sex a | ADHD total | Initial ADHD medication | No initial ADHD medication |
|---|---|---|---|
| Total, n (%) | 2,380 (100%) | 624 (26%) | 1,756 (74%) |
| Female, n (%) | 961 (100%) | 267 (28%) | 694 (72%) |
| Male, n (%) | 1,419 (100%) | 357 (25%) | 1,062 (75%) |
| Age (years) mean ± SD | 34.6 ± 9.9 | 34.9 ± 9.3 | 34.6 ± 10.2 |
| Age difference initial ADHD medication vs. no medication | p = 0.42 | ||
| Sex difference initial ADHD medication vs. no medication | p = 0.17 | ||
| Diagnosing physician (speciality of office-based outpatient) and inpatient diagnosis of initial aADHD diagnosis at index quarter (no significance tested) | |||
| General practitioner | 980 of 2,380 (41%) | 173 of 624 (28%) | 807 of 1,756 (46%) |
| Psych MD | 778 of 2,380 (33%) | 352 of 624 (56%) | 426 of 1,756 (24%) |
| Psych | 95 of 2,380 (4%) | 17 of 624 (3%) | 78 of 1,756 (4%) |
| Inpatient diagnosis | 557 of 2,380 (23%) | 178 of 624 (29%) | 379 of 1,756 (22%) |
| Number of individuals with at least one prescription of ADHD-specific medication in the first year of follow-up | |||
| At least one prescription of ADHD-specific medication | 759 of 2,380 (32%) | 624 of 624 (100%) | – |
| Prescribing physician of ADHD-specific medication (outpatient) for those with at least one prescription of ADHD-specific medication in the first year of follow-up | |||
| General practitioner | 123 of 759 (16%) | 78 of 624 (13%) | – |
| Psych MD | 526 of 759 (69%) | 398 of 624 (64%) | – |
One individual may have multiple ADHD diagnoses and prescriptions from multiple physicians.
Abbreviation: ADHD, attention-deficit/hyperactivity disorder.
a
Tested outcomes: age and sex differences between individuals with initial ADHD-medication and no initial ADHD-medication. No statistical difference between individuals with initial ADHD-medication and without concerning sex (Chi-square test; p = 0.17) and age (t test; p = 0.42) at index.