ReviewBrain sciences2022
A Review of Canadian Diagnosed ADHD Prevalence and Incidence Estimates Published in the Past Decade.
Review in Brain sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
27 citing papers in PubMed.
- Article
- Treatment Preferences of Physicians of Pediatric Patients with Attention-Deficit/Hyperactivity Disorder in the United States and Canada: A Discrete Choice Experiment.Neurology and therapy · 2026Article
- The Relationship Between Socioemotional Strengths and Self-Stigma Experiences of Youth with ADHD and their Parents.Child psychiatry and human development · 2026Article
- Mitochondrial Dysfunction in Autism and Attention-Deficit/Hyperactivity Disorder: Evidence from Genetic, Biochemical, and Neuroimaging Approaches.Antioxidants (Basel, Switzerland) · 2026Review
- Update on ADHD genetics: A practitioner's perspective: Mise à jour sur la génétique du TDAH : le point de vue d'un praticien.Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2026Review
- DSM-5 Changes, COVID-19, and ADHD Diagnosis Rates in Individuals Younger Than 30 Years.JAMA network open · 2026Article
- ADHD in Adulthood: Clinical Presentation, Comorbidities, and Treatment Perspectives.International journal of molecular sciences · 2025Review
- Trends of incident adult Attention-deficit/hyperactivity disorder diagnoses before, during and after the pandemic provincial state of emergency in British Columbia (2013-2023): a population-based study.Lancet regional health. Americas · 2025Article
- Advances in ADHD, An Opportunity for Learning and Further Research.Brain sciences · 2025Article
- Prevalence of neurodevelopmental disorders in children with chronic hepatitis C in British Columbia.Canadian liver journal · 2025Article
- Article
- Does the format of the adult ADHD self-report scale influence screen-positive rates? A randomized controlled trial in primary care.Frontiers in psychiatry · 2025Article
- Healthcare use in individuals with and without attention-deficit/hyperactivity disorder: A population-based longitudinal matched cohort study.PLOS mental health · 2025Article
- A double-edged hashtag: Evaluation of #ADHD-related TikTok content and its associations with perceptions of ADHD.PloS one · 2025Article
- Hyperactivity in male and female mice manifests differently following early, acute prenatal alcohol exposure and mild juvenile stress.Frontiers in behavioral neuroscience · 2025Article
- Article
- Empowering Social Growth Through Virtual Reality-Based Intervention for Children With Attention-Deficit/Hyperactivity Disorder: 3-Arm Randomized Controlled Trial.JMIR serious games · 2024Article
- Prevalence and Incidence Trends of Attention Deficit/Hyperactivity Disorder in Children and Youth Aged 1-24 Years in Ontario, Canada: A Validation Study of Health Administrative Data Algorithms: Tendances de la prévalence et de l'incidence du trouble de déficit de l'attention/hyperactivité chez les enfants et les jeunes âgés de 1 à 24 ans, en Ontario, Canada: une étude de validation des algorithmes de données administratives de santé.Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2024Article
- Prevalence and Clinical Profile of Adults with ADHD Attending a Tertiary Care Hospital for Five Years.International journal of environmental research and public health · 2024Article
- ADHD medications use and risk of mortality and unintentional injuries: a population-based cohort study.Translational psychiatry · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
(1) Background: ADHD is recognized as one of the most common neurodevelopmental disorders. The worldwide prevalence of ADHD is estimated at 5.3%; however, estimates vary as a function of a number of factors, including diagnostic methods, age, sex and geographical location. A review of studies is needed to clarify the epidemiology of ADHD in Canada. (2) Methods: A search strategy was created in PubMed and adapted for MEDLINE and PsycINFO. Papers were included if they examined diagnosed ADHD prevalence and/or incidence rates in any region of Canada, age group and gender. A snowball technique was used to identify additional papers from reference lists, and experts in the field were consulted. (3) Results: Ten papers included in this review reported on prevalence, and one reported on incidence. One study provided an overall prevalence estimate across provinces for adults of 2.9%, and one study provided an overall estimate across five provinces for children and youth of 8.6%. Across age groups (1 to 24 years), incidence estimates ranged from 0.4% to 1.2%, depending on province. Estimates varied by age, gender, province, region and time. (4) Conclusions: The overall Canadian ADHD prevalence estimate is similar to worldwide estimates for adults. Most studies reported on prevalence rather than incidence. Differences in estimates across provinces may reflect the varying number of practitioners available to diagnose and prescribe medication for ADHD across provinces. To achieve a more comprehensive understanding of the epidemiology of ADHD in Canada, a study is needed that includes all provinces and territories, and that considers estimates in relation to age, gender, ethnicity, geographical region, socioeconomic status and access to mental healthcare coverage. Incidence rates need further examination to be determined.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.