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Surdiagnostic du TDAH au Québec: Impact de l’âge d’entrée à l’école, différences régionales et coûts sociaux et économiques

Author

Listed:
  • Catherine Haeck
  • Geneviève Lefebvre
  • Pierre Lefebvre
  • Philip Merrigan

Abstract

→ Read the article in PERSPECTIVES In Quebec, children must be 5 years old before October1st to be admitted to kindergarten. In the same class, the youngest students are therefore up to one year younger than the oldest. In this study, the authors show that children born in late September have 35% higher rates of ADHD diagnosis and medication than those born in early October. ADHD would be confused with inattentive or more turbulent behaviors. Based on unpublished data from the RAMQ, including the medical services records of nearly 800,000 young people born between 1996 and 2005, the authors draw unequivocal conclusions about the extent of the phenomenon and sound the alarm on an issue of great concern. → Lire l'article dans PERSPECTIVES Au Québec, les enfants doivent avoir 5 ans avant le 1er octobre pour être admis en maternelle. Dans une même classe, les plus jeunes ont donc jusqu’à un an de moins que les plus vieux. Dans cette étude, les auteurs montrent que les enfants nés fin septembre ont des taux de diagnostic et de médication du TDAH 35 % plus élevés que ceux nés début d’octobre. Le TDAH serait confondu avec des comportements d’inattention ou de plus grande turbulence. S’appuyant sur des données inédites de la RAMQ incluant les dossiers de services médicaux de près de 800 000 jeunes nés entre 1996 et 2005, les auteurs tirent des conclusions non équivoques sur l’ampleur du phénomène et sonnent l’alarme sur un enjeu extrêmement préoccupant.

Suggested Citation

  • Catherine Haeck & Geneviève Lefebvre & Pierre Lefebvre & Philip Merrigan, 2023. "Surdiagnostic du TDAH au Québec: Impact de l’âge d’entrée à l’école, différences régionales et coûts sociaux et économiques," CIRANO Project Reports 2023rp-08, CIRANO.
  • Handle: RePEc:cir:cirpro:2023rp-08
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    File URL: https://cirano.qc.ca/files/publications/2023RP-08.pdf
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