Table 1.

Stimulant ADHD medication, substance abuse and other characteristics of patients diagnosed with ADHD.

		Men	Women
Number of patients at start of follow-up (2009)		26,249	12,504
Person-years at risk during follow-up (January–December 2009)		26,172	12,475
% on stimulant ADHD medication January 1, 2006		16.0%	10.4%
% on ADHD medication during 2009		48.7%	53.0%
% Registered at least once for substance abuse during 2009		6.2%	4.2%
	% died with a substance abuse diagnosis	0.02%	0.01%
	% Convicted at least once for a substance-related crime in the Crime Register	2.9%	1.2%
	% Diagnosed at least once in the Patient Register for substance abuse	4.2%	3.6%
Age distribution in 2006
	8–15	49.3%	34.5%
	16–25	29.7%	32.8%
	26–35	11.6%	17.0%
	36–46	9.4%	15.7%
Civil status in 2006*
	Unmarried	88.8%	76.7%
	Married	6.2%	12.5%
	Divorced	4.9%	10.6%
	Widowed	0.1%	0.2%
Employed in 2006*		23.4%	25.2%
Studying in 2006*		32.6%	32.5%
Living in a metropolitan area in 2006		13.5%	13.8%
Non-substance psychiatric diagnosis before 2006		57.0%	68.5%
Non-substance criminal conviction before 2006		33.3%	23.4%
Substance abuse event before 2006		10.8%	7.5%
Non-substance abuse psychiatric diagnosis 2006–2008		25.4%	18.0%
Non-substance criminal conviction 2006–2008		19.7%	9.6%
Substance abuse event 2006–2008		11.9	8.0
Prescribed antipsychotics 2006–2008		12.9%	16.5%
Prescribed hypnotics/anxiolytics 2006–2008		29.9%	46.6%
Prescribed antidepressants 2006–2008		26.2%	48.1%
Prescribed drugs used in addictive disorders 2006–2008		5.1%	5.9%

Note:

^*For individuals 16 years or older in 2006.