*PSSD symptom score is the average severity of 5 symptoms (itch, pain, burning, stinging, and skin tightness) over the previous 24 hours scored on a numerical scale ranging from 0 (absent) to 100 (worst).⁴

DLQI, Dermatology Life Quality Index; PASI, Psoriasis Area and Severity Index; PSSD, Psoriasis Symptoms and Signs Diary; SD, standard deviation; sPGA, static Physician’s Global Assessment; ss-PGA, scalp-specific Physician’s Global Assessment; y, years.