Characteristics of patients with psoriasis with Psoriasis Area and Severity Index < 10 treated with biological agents: results from the French PsoBioTeq cohort

Decision to initiate systemic therapy in psoriasis is mainly based on disease severity assessments, determined using physicians' derived scores, e.g. the Psoriasis Area and Severity Index (PASI), an absolute value of 10 or more indicates severe disease. How patients perceive the severity of psoriasis and physicians' evaluation may be discordant, especially when lesions involve visible areas, or are associated with itching, therefore having a greater impact on quality of life (QoL) as evaluated using patient-reported outcomes, like the Dermatology Life Quality Index (DLQI).