Physician‘s Global Assessment (PGA) of Psoriasis
5-point disease severity scale based on induration, scaling and redness of the lesions.
No signs of psoriasis, but postinflammatory discoloration may be present
Only minimal plaque elevation, scaling, and erythema
Slight plaque elevation, scaling, and erythema
Moderate plaque elevation, scaling, and erythema
Very marked plaque elevation, scaling, and erythema
Reference: Pascoe VL, Enamandram M, Corey KC, et al. Using the Physician Global Assessment in a Clinical Setting to Measure and Track Patient Outcomes.
JAMA Dermatol. 2015;151(4):375–381. doi:10.1001/jamadermatol.2014.3513