International Psoriasis Council

Advancing Knowledge. Improving Care.

Advancing Knowledge. Improving Care.

Assessments

A list of commonly used measurement tools for psoriasis management and clinical trials.

GENERAL

DLQI: Dermatology Quality of Life Index

A simple 10-question validated questionnaire that has been used for more than 40 different skin conditions in over 80 countries and is available in over 110 languages to measure disease severity and quality of life.

GET THE DLQI 

DOWNLOAD THE OFFICIAL APP (free)

OPAT™: The Optimal Psoriasis Assessment Tool

A simple proxy for PASI and DLQI using body surface area (BSA) and one or more of Skin Pain Visual Analog Score (Skin Pain VAS), Itch numeric rating scale (Itch NRS), and patient global assessment (patGA).

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PASI: Psoriasis Area and Severity Index

Quantifies the severity of psoriasis measured by redness, thickness, and scaliness of the lesions, weighed by the area of involvement.

GET THE PASI

PGA: Physician's Global Assessment

Physician’s assessment of the severity of disease based on a scale from clear to very severe.

GET THE PGA

PSI: Psoriasis Symptom Inventory

Self-administered, patient-reported outcome measure (PRO) to assess symptom severity in chronic plaque psoriasis.

GET THE PSI

SPI: Simplified Psoriasis Index

The Simplified Psoriasis Index (SPI) is a tool that has been developed to enable either healthcare professionals or patients with psoriasis to make regular assessments of disease severity and its impact on well-being. It also incorporates a summary of past behavior and treatment.

GET THE SPI

SPECIAL AREAS & POPULATIONS

CDLQI: The Children's Dermatology Life Quality Index

A 10-question questionnaire based on the experiences of children with skin disease. Available in both a text-only version and the Cartoon CDLQI, with each question illustrated by a cartoon based on the theme of the question, catering to younger children.

GET THE CDLQI

PEST: Psoriasis Epidemiology Screening Tool

A validated screening tool for psoriatic arthritis (PsA). It is recommended that patients with psoriasis who do not have a diagnosis of PsA complete an annual PEST questionnaire (NICE psoriasis guidelines 2012). A score of 3 or more indicates referral to rheumatology should be considered.

GET THE PEST

sPGA-G: Static Physician's Global Assessment of Genitalia

A clinical outcome measure for the assessment of genital psoriasis severity that accounts for the erythematous clinical presentation of genital psoriasis.

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RESOURCES

The Generalized Pustular Psoriasis Physician Global Assessment (GPPGA) Score

A validated online measure designed to comprehensively evaluate disease activity in generalized pustular psoriasis, providing clinicians with a reliable tool to assess the severity and progression of the condition.

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Clinical Disease Measures in Generalized Pustular Psoriasis

Includes validated tools that help clinicians accurately monitor disease severity, progression, and treatment response.

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The Psychometric Validation of the Generalized Pustular Psoriasis Physician Global Assessment (GPPGA) and Generalized Pustular Psoriasis Area and Severity Index (GPPASI)

This confirms the reliability and accuracy in assessing disease severity and extent, providing essential tools for clinicians to effectively evaluate and manage generalized pustular psoriasis.

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