The VITACORA- 19 and PsAID questionnaires are equally valid for assessing the impact of psoriatic arthritis on patients' quality of life

This is the first study comparing the VITACORA-19 and PsAID questionnaires. Either of the two questionnaires could be used to assess HRQoL in PsA. For the first time, VITACORA-19 thresholds are defined that identify the different DAPSA activity categories. A VITACORA-19 score ≥ 66 could be an appropriate treatment target. Key Points • Health-related quality of life (HRQoL) is an often-underestimated aspect in psoriatic arthritis (PsA). • The PsAID and VITACORA-19 questionnaires offer similar performance for assessing HRQoL in PsA. • A VITACORA-19 ≥ 66 identifies the low disease impact state according to the PsAID. • VITACORA-19 thresholds identifying DAPSA categories are reported.