About the GPA

Why do we need a Global Psoriasis Atlas?


The GPA is a long-term project that seeks to drive continuous improvement in the understanding of psoriasis and to uncover how it affects both the individual and society at large.  


The GPA is a collaboration between three leading international organisations in world dermatology: International Federation of Psoriasis Associations (IFPA); International League of Dermatological Societies (ILDS); and International Psoriasis Council (IPC)


This reliable resource on psoriasis was first published in 2019 and one of the key aims of the GPA website is to provide detailed, open-access information about the worldwide epidemiology of psoriasis. Our network of specialist dermatologists and international organisations around the world are working together to regularly update the GPA website.

The website contains data on the number of psoriasis cases in adults and children in every country of the world, healthcare data from Latin America and personal accounts of people with psoriasis worldwide.


The GPA four key research focus areas are:

  • Epidemiology of Psoriasis

  • Comorbid Disease Burden of Psoriasis

  • Early Diagnosis of Psoriasis

  • Health Economic Impact of Psoriasis

‘’The Global Psoriasis Atlas brings together committed and enthusiastic colleagues from around the world who share a mission to understand the epidemiology of psoriasis. The Atlas will provide important data on the true burden of psoriasis and its cost to the individual and to society in each country around the world. In turn these data will be foundational to improve the best care of people with psoriasis, wherever they live, by highlighting unmet needs to health authorities, governments, payers, and regulators.’’
Professor Chris Griffiths, GPA Director


Epidemiological research has the potential to add to our understanding of the prevalence and incidence of psoriasis and its comorbid diseases, as well as their psychosocial and societal impact. However, previous studies on the epidemiology of psoriasis have lacked standardisation in case- definition and methodology. This thereby limits the value of geographic comparisons and provides very limited data on temporal comparisons of the prevalence of this serious, chronic non-communicable skin disease.

The mission of the GPA is to provide the common benchmark on the complete burden of psoriasis in all countries and regions throughout the world. The GPA will leverage existing data from publications and registries; where gaps are identified additional studies will be commissioned.

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