AsseSSing Impact in pSoriatic Treatment

Psoriatic arthritis (PsA) is a form of inflammatory arthritis associated with the skin condition psoriasis. A variety of different treatments are used to try to control arthritis and skin psoriasis and management often involves trial and error to find the right medication for the right person. Very little is known about the decisions made to increase treatment in individual patients. Previous research in rheumatoid arthritis found that clinical measures of disease activity, patient reported outcomes and characteristics of the treating doctor all influenced the decision to change therapy in routine practice. This investigators particularly want to establish whether routine use of the psoriatic arthritis impact of disease (PsAID-12) questionnaire in the clinic setting can enable a better understanding of the impact of PsA on each individual, improve physician-patient communication and lead to appropriate interventions. The PsAID-12 questionnaire is a relatively new European developed questionnaire measuring patient impact across 12 different domains in PsA. This study will use routine implementation of the PsAID-12 questionnaire and see if this is related to treatment decisions and patient satisfaction. The investigators will also examine other factors that may influence treatment decisions including patient characteristics, physician characteristics, disease activity and quality of patient-physician interactions.