Mrowietz U, Kragballe K, Reich K, et al. Definition of treatment goals for moderate to severe psoriasis: a European consensus. Arch Dermatol Res. 2011;303(1):1-10.

Australiasian College of Dermatologists. The Australasian College of Dermatologist Consensus Statement. Treatment goals for psoriasis 2017. https://www.dermcoll.edu.au/wp-content/uploads/ACD-Consensus-Statement-Treatment-goals-for-psoriasis-March-2017.pdf. Accessed March 19, 2019.

Elmets CA, Leonardi CL, Davis DMR, et al. Joint AAD-NPF guidelines of care for the management and treatment of psoriasis with awareness and attention to comorbidities. J Am Acad Dermatol. 2019;80(4):1073-1113.

Fredriksson T, Pettersson U. Severe psoriasis--oral therapy with a new retinoid. Dermatologica. 1978;157(4):238-44.

Langley RG, Ellis CN. Evaluating psoriasis with Psoriasis Area and Severity Index, Psoriasis Global Assessment, and Lattice System Physician's Global Assessment. J Am Acad Dermatol. 2004;51(4):563-9.

Schmitt J, Wozel G. The Psoriasis area and severity index is the adequate criterion to define severity in chronic plaque-type psoriasis. Clinical and Laboratory Investigations. 2005; 210: 194-199. 

Feldman SR, Krueger GG. Psoriasis assessment tools in clinical trials. Ann Rheum Dis. 2005; 64: 65-68.

Berth-Jones J, Grotzinger K, Rainville C et al.  A study examining inter- and intrarater reliability of three scales for measuring severity of psoriasis: Psoriasis Area and Severity Index, Physicians Global Assessment and Lattice System Physicians Global Assessment. Clinical and Laboratory Investigations. 2006; 155: 707-713.

Spuls PI, Lecluse LLA, Poulsen MNF et al. How Good are Clinical Severity and Outcome Measures for Psoriasis?: Quantitative Evaluation in a Systematic Review. Journal of Investigative Dermatology. 2010; 130 (4): 933-943.

Puzenat E, Bronsard V, Gourraud PA et al. What are the best outcome measures for assessing plaque psoriasis severity? A systematic review of the literature. European Academy of Dermatology and Venereology. 2010; 24: 10-16.

Simpson MJ, Chow C, Morgenstem H et al. Comparison of 3 methods for measuring psoriasis severity in clinical studies (Part 2 of 2): use of quality of life to assess construct validity of LS-PGA, PASI and Static Physician’s Global assessment. European Academy of Dermatology and Venereology. 2015; 29: 1415-1420.

Dr. Torsten Fredriksson

Psoriasis Area and Severity Index (PASI)

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Zhi Mei Low, MBBS

The Psoriasis Area and Severity Index (PASI) quantifies severity of psoriasis.

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