SAT0442 Functional disease status and healthcare costs in psoriatic arthritis: a similar relationship to that seen in rheumatoid arthritis

Background

The Health Assessment Questionnaire-Disability Index (HAQ-DI), an important, validated measure of functional status in patients with psoriatic arthritis (PsA), has been used as an intermediate variable in modelling of costs and quality-adjusted life-years. The relationship between HAQ-DI and costs has been well documented for rheumatoid arthritis (RA),^1,2 but less so for PsA. The HAQ-DI study data in PsA patients...