SciELO - Scientific Electronic Library Online

vol.25 issue2Randomised controlled trial of cognitive-motivational therapy program for the initial phase of schizophrenia: a 6-month assessmentImpact of psychological disorders after female genital mutilation among Kurdish girls in Northern Iraq author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google


The European Journal of Psychiatry

Print version ISSN 0213-6163


MANN, Robert E. et al. Estimating prevalence of anxiety and mood disorder in survey data using the GHQ12: Exploration of threshold values. Eur. J. Psychiat. [online]. 2011, vol.25, n.2, pp.81-91. ISSN 0213-6163.

Background and Objectives: Our study explored the validity of different threshold values on the 12-item version of the General Health Questionnaire (GHQ12) for estimating the prevalence of anxiety and mood disorders (AMD) in Ontario population survey data. Methods: Data were drawn from the 2003, 2004 and 2006 cycles of the CAMH Monitor (N = 7,126), an ongoing general population survey of Ontario adults aged 18 and older, which includes the GHQ12. The concordance of different threshold values on the GHQ12 for determination of AMD with a criterion based on individuals who were prescribed either anti-anxiety or anti-depressant drugs in the past 12 months and who reported 14 or more mentally unhealthy days in the past 30 days was examined using receiver operator characteristic (ROC) analysis. Results: Concordance between the GHQ12 determination of AMD and the criterion measure reached "moderate" levels. ROC analysis revealed an area under the curve (AUC) of 0.89. At a GHQ12 threshold value of 4, the specificity and sensitivity values obtained were 0.92 and 0.71, respectively. Also at that value, the estimated prevalence of AMD was nearly identical to that seen in recent Canadian studies using the CIDI. Conclusions: These analyses suggest that the GHQ12 may be suitable for providing a proxy measure of AMD for epidemiological and surveillance purposes. A threshold score of 4 seems to be most suitable for these purposes when using Canadian data.

Keywords : GHQ12; Anxiety disorder; Mood disorder; Survey; Validity; Prevalence.

        · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License