ArticleChild and adolescent psychiatry and mental health2022
Long-term methylphenidate use for children and adolescents with attention deficit hyperactivity disorder and risk for depression, conduct disorder, and psychotic disorder: a nationwide longitudinal cohort study in South Korea.
Article in Child and adolescent psychiatry and mental health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.
- Occurrence of Psychosis and Bipolar Disorder in Individuals With Attention-Deficit/Hyperactivity Disorder Treated With Stimulants: A Systematic Review and Meta-Analysis.JAMA psychiatry · 2025Pooled it
- Artificial intelligence approach for the analysis of placebo-controlled clinical trials in major depressive disorders accounting for individual propensity to respond to placebo.Translational psychiatry · 2023Trial
- Increasing incidence of ADHD among children, adolescents and young adults: COVID-19 pandemic-driven trend in Korea (2012-2023).BMJ mental health · 2025Observational
- Multidimensional Comparison of Methylphenidate and Atomoxetine in the Treatment of Attention-Deficit/Hyperactivity Disorder in Children, a 12-Week, Open-Label, Head-to-Head Clinical Trial.Psychiatry investigation · 2025Article
- Comparison of the real-world safety of two different long-acting methylphenidate formulations (MedikinetScandinavian journal of child and adolescent psychiatry and psychology · 2024Article
- Impact of Comorbid Oppositional Defiant Disorder on the Clinical and Neuropsychological Characteristics of Korean Children With Attention-Deficit/Hyperactivity Disorder.Psychiatry investigation · 2023Article
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundMethylphenidate (MPH) is the most frequently prescribed medication for the treatment of attention deficit hyperactivity disorder (ADHD). However, the safety of its long-term use remain unclear. In particular, real-world evidence of long-term MPH treatment regarding the risk of depression, conduct disorders, and psychotic disorders in children and adolescents is needed. This study aimed to compare the risks of depression, conduct disorder, and psychotic disorder between long- and short-term MPH treatments in children and adolescents.
methodsThis population-based cohort study used a nationwide claims database of all patients with ADHD in South Korea. Patients aged less than 18 years who were prescribed MPH were included in the study. Long- and short-term MPH were defined as > 1 year, and < 1 year, respectively. Overall, the risk of developing depressive disorder, conduct disorder and oppositional defiant disorder (ODD), and psychotic disorder were investigated. A 1:2 propensity score matching was used to balance the cohorts, and the Cox proportional hazards model was used to evaluate the safety of MPH.
resultsWe identified 1309 long-term and 2199 short-term MPH users. Long-term MPH use was associated with a significantly lower risk of depressive (hazard ratio [HR], 0.70 [95% confidence interval [CI] 0.55-0.88]) and conduct disorders and ODD (HR, 0.52 [95% CI 0.38-0.73]) than short-term MPH use. Psychotic disorder was not significantly associated with long-term MPH use (hazard ratio [HR], 0.83 [95% confidence interval [CI] 0.52-1.32]).
conclusionsOur findings suggest that long-term MPH use may be associated with a decreased risk of depression, conduct disorders and ODD. Moreover, the long-term use of MPH does not increase the risk of psychotic disorders. Long-term MPH administration may be considered as a favourable treatment strategy for children and adolescents with ADHD regarding depressive, conduct, and psychotic disorders.
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