The conundrum between maturity and ADHD
A recent Canadian study showed that the youngest children in each grade (born in the earliest month of the Canadian grade cutoff: December) were 30% more likely to be diagnosed with ADHD than the oldest children (born in January). For girls, who overall have a lower incidence of ADHD, the difference was even more pronounced: 70%.
Interestingly, the overall rate of ADHD diagnosis in the sampling of children from this Canadian …