Relative age within the school year and diagnosis of attention-deficit hyperactivity disorder: a nationwide population-based study
(2017)
Journal Article
Sayal, K., Chudal, R., Hinkka-Yli-Salomäki, S., Joelsson, P., & Sourander, A. (in press). Relative age within the school year and diagnosis of attention-deficit hyperactivity disorder: a nationwide population-based study. Lancet Psychiatry, 4(11), https://doi.org/10.1016/S2215-0366%2817%2930394-2
Background
There are mixed findings on the relationship between ADHD and younger relative age in class. This study examines whether relative age is associated with ADHD diagnosis in a country where treatment prevalence rates are low and whether an...
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