Table 1.

Age-Standardised Prevalence (per 1000) of Diagnosed Attention-Deficit Hyperactivity Disorder by Sex.

	1999-2000 (95% Confidence Interval)	2011-2012 (95% Confidence Interval)
Manitoba
Male	24.1 (23.3-24.7)	41.0 (40.0-42.1)
Female	6.3 (5.9-6.7)	13.20 (12.59-13.8)
Nova Scotia
Male	34.6 (33.5-35.8)	55.0 (53.5-56.6)
Female	8.8 (8.2-9.4)	19.4 (18.5-20.4)
Ontario
Male	16.4 (16.2-16.6)	16.0 (15.8-16.2)
Female	4.4 (4.3-4.5)	5.8 (5.6-5.9)
Quebec
Male	16.9 (16.6-17.2)	52.4 (51.9-52.9)
Female	4.6 (4.4-4.7)	22.2 (21.8-22.5)