Siobhan O’Donnell|Saskia Vanderloo|Louise McRae|Jay Onysko|Scott B. Patten|Louise Pelletier
Comparison of the estimated prevalence of mood and/or anxiety disorders in Canada between self-report and administrative data
Public Health Agency of Canada|Public Health Agency of Canada|Public Health Agency of Canada|Public Health Agency of Canada|University of Calgary|Public Health Agency of Canada
compare trends estimated prevalence mood andor anxiety disorders identified two data sources selfreport administrative reviewing synthesising interpreting data two sources help identify potential factors underlie observed estimates inform public health actionwe used selfreported diagnosed mood andor anxiety disorder cases canadian community health survey cchs across 5year span 2003 2009 estimate prevalence among canadian population aged 15 years also estimated prevalence mood andor anxiety disorders using canadian chronic disease surveillance system ccdss identified cases using icd910ca codes physician billing claims hospital discharge records time period prevalence rates mood andor anxiety disorders compared across cchs ccdss age sex available years data 2003 2009 summary rates agestandardised canadian population 1 october 1991in 2009 prevalence mood andor anxiety disorders 94 using selfreported data v 113 using administrative data prevalence rates obtained administrative data consistently higher selfreport men women however due increase prevalence selfreported cases differences decreased time rate ratios sexes 1612 prevalence estimates consistently higher among females compared males irrespective data source differences prevalence estimates two data sources evident across age groups reduction differences greater among adolescent young middleaged adults compared 70 years olderthe overall narrowing differences time reflects convergence information regarding prevalence mood andor anxiety disorders trends selfreport administrative data sources administrative databased prevalences remained relatively stable selfreported prevalences increased time observations may reflect positive societal changes perceptions mental health declining stigma andor increasing mental health literacy additional research using nonecological data required understanding observed findings trends including data linkage exercise permitting comparison prevalence estimates population characteristics two data sources separately merged