Skip to main content

Table 1 Study population at risk (yearly)

From: Validation of an EMR algorithm to measure the prevalence of ADHD in the Canadian Primary Care Sentinel Surveillance Network (CPCSSN)

  2008 2009 2010 2011 2012 2013 2014 2015
n 345,173 413,715 460,970 528,698 565,517 587,707 609,756 624,419
Age, %
 4–17 years 18.5 18.8 18.4 18.3 18.5 18.6 18.6 18.7
 18–34 years 25.6 25.9 26.1 26.4 26.6 26.8 26.8 26.8
 35–64 years 55.9 55.3 55.5 55.3 54.8 54.7 54.6 54.5
Gender, %
 male 42.0 42.4 42.9 43.0 43.1 43.1 43.3 43.6