Is the health‐related quality of life and functional status of patients with psoriatic arthritis worse than that of patients with psoriasis alone?

Aim The aim of this study was to compare the health‐related quality of life and functional status of patients with psoriasis ( P s), psoriatic arthritis ( P s A ) and control subjects. Method Eighty patients with P s A , 40 patients with P s and 40 healthy subjects were included. Physical functions were evaluated with the H ealth A ssessment Q uestionnaire for S pondyloarthropathies ( HAQ ‐ S ) while life satisfaction was evaluated with the P soriatic A rthritis Q uality of L ife ( P s AQ o L ) questionnaire. The D isease A ctivity S core 28 ( DAS 28), D isease A ctivity I ndex for the A ssessment of R eactive A rthritis ( DAREA ), B ath A nkylosing S pondylitis D isease A ctivity I ndex ( BASDAI ) and A nkylosing S pondylitis D isease A ctivity S core‐ C ‐Reactive Protein ( ASDAS ‐ CRP ), Maastrich Ankylosing Spondylitis Enthesitis Score (MASES) and visual analog scale‐pain were calculated. Results The HAQ ‐ S data revealed that physical functional status in the P s A group was worse than the P s and control groups (mean scores: 0.5 ± 0.5, 0.2 ± 0.5 and 0.1 ± 0.3, respectively). The P s AQ o L data revealed a worse quality of life in the P s A and P s groups than in the control group but the same quality of life in the P s A and P s groups (mean scores: 6.9 ± 5.4, 7 ± 5.9 and 3.3 ± 4.2, respectively). Both the HAQ ‐ S and P s AQ o L data were found to be moderately to weakly correlated with disease activity measures ( DAS 28, DAREA , BASDAI , ASDAS ‐ CRP ), pain and enthesitis. Conclusion Patients with P s and P s A had worse quality of life and patients with PsA had worse functional status than healthy individuals. Although P s patients with arthritis had a worse functional status than the ones without arthritis, quality of life according to PSAQ o L was found to be similar between them.