Table 1.

Patient’s Global Assessment (PsGA)

Score	Category	Description
0	Clear	The skin looks normal with no signs of lesions
1	Almost clear	There are only faint lesions with some slight redness, barely elevated and a few scales
2	Mild	The skin lesions have a light red color, may be slightly elevated and a bit scaly
3	Mild to moderate	The skin lesions have a reddish color, are a bit elevated and somewhat scaly
4	Moderate	The skin lesions are clearly red, elevated and scaly
5	Moderate to severe	The skin lesions are really red, thick and with a lot of scales
6	Severe	The skin lesions are very red, really thick and with heavy scaling

Development of the patient’s global assessment (PsGA) tool was based on the commonly used clinical assessment physician global assessment tool [42] to be used for assessment of psoriasis’ condition severity by the patient