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faqs

    • Comparison of prevalence estimates between countries and regions.

    • The website reports the crude prevalence estimates. (These have not been age-and-gender standardised due to lack of information). Therefore, comparison between countries, particularly between countries with very different population age structure, need to be interpreted with caution.

    • Where can I get more information on the data and how it has been calculated?

    • A detailed academic publication will be available soon for reference. For more information please contact the GPA team.

    • Interpretation of prevalence estimates and further notes (include crude estimates).

    • Not all countries have available data on the prevalence of psoriasis, therefore for some countries the estimates have a high level of uncertainty and need to be interpreted with caution.

      The website reports the crude prevalence estimates. (These have not been age-and-gender standardised due to lack of information).

    • How the prevalence estimates have been calculated/produced?

    • Prevalence estimates have been produced by a two-step approach:

      1. A comprehensive systematic review of the literature on the prevalence of psoriasis.

      2. A meta-analysis which has used an advanced statistical model to generate estimates for every country, region and super-region of the world.

    • Where can I get information on the classification of the countries, region and super-regions?

    • Please visit the UN Stats website for more information.