Epidemiology, Treatment Patterns, Comorbidities, and Concomitant Medication in Patients with ADHD in Sweden: A
MaiBritt Giacobini1,2, Ewa Ahnemark3, Emma Medin4,5
1PRIMA Barn-Och Vuxenpsykiatri AB, Stockholm, Sweden.
Objective:
To evaluate treatment patterns for ADHD in Sweden.
Method:
Observational retrospective study of patients with ADHD from the Swedish National Patient Register and Prescribed Drug Register, 2018 to 2021. Cross-sectional analyses included incidence, prevalence, and psychiatric comorbidities. Longitudinal analyses (newly diagnosed patients) included medication, treatment lines, duration, time-to-treatment initiation, and switching.
Results:
Of 243,790 patients, 84.5% received an ADHD medication. Psychiatric comorbidities were common, particularly autism among children, and depression in adults. Most frequent first-/second-line treatments were methylphenidate (MPH; 81.6%) and lisdexamfetamine dimesylate (LDX; 46.0%), respectively. In the second-line, LDX was most frequently prescribed (46.0%), followed by MPH (34.9%), then atomoxetine (7.7%). Median treatment duration was longest for LDX (10.4 months), followed by amphetamine (9.1 months).
Conclusion:
This nationwide registry study provides real-life insights into the current epidemiology of ADHD and the changing treatment landscape for patients in Sweden.
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