. Author manuscript; available in PMC: 2021 Aug 1.

Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2019 Jul 11;59(8):944–951. doi: 10.1016/j.jaac.2019.06.010

Table 1.

Characteristics of the study cohort

	Males		Females
	N	%	N	%
Study cohort	1 333 048	-	635 098	-
At least one prescription of ADHD medication	1 105 675	82.9%	523 909	82.5%
At least one medication status switch	791 026	59.3%	378 060	59.5%
At least one event	64 346	4.8%	22 808	3.6%
	Median	IQR	Median	IQR
Age at start of follow-up	11	8–15	12	9–16
Follow-up months	17	9–35	15	8–32

Note: IQR= interquartile range ; N= number.