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Impact of Skin, Musculoskeletal and Psychosocial Aspects on Quality of Life in Psoriatic Arthritis Patients: A Cross-Sectional Study of Outpatient Clinic Patients in the Biologic Treatment Era

Author

RMD Open. 2020 May;6(1):e001223. doi: 10.1136/rmdopen-2020-001223.

Glenn Haugeberg 1, Brigitte Michelsen 2, Arthur Kavanaugh 3

Author Information

1 Division of Rheumatology, Dept. of Medicine, Sorlandet Hospital Kristiansand, Kristiansand, Norway glenn.haugeberg@sshf.no.

2 Department of Rheumatology, Hospital of Southern Norway Trust Kristiansand, Kristiansand, Norway.

3 UCSD, San Diego, California, USA.

Abstract

Background: In psoriatic arthritis (PsA), both psoriasis and musculoskeletal manifestations may impair Health-Related Quality of Life (HRQoL). Our objective was to explore the impact of the various disease manifestations and disease consequences, including psychosocial factors, on HRQoL in PsA patients treated in the biologic treatment era.

Methods: Data collection in the 131 outpatient clinic PsA patients assessed included demographics, disease activity measures for both skin and musculoskeletal involvement and patient-reported outcome (PRO) measures, treatment and psychosocial burden. The skin dimension of quality of life was assessed by the Dermatology Life Quality Index (DLQI) and the overall HRQoL by the 15-Dimensional (15D) Questionnaire.

Results: The mean age was 51.9 years, PsA disease duration 8.6 years, 50.4% were men, 56.9% were employed/working and 47.7% had ≥1 comorbidities. Prevalence of monotherapy with conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) was 36.6% and with biologic DMARDs 12.2% and combination of both 22.9%. Mean DLQI was 3.3 and 15D 0.84. In adjusted analysis, not employed/working, higher scores for fatigue, sleep disturbances, anxiety and depression, Modified Health Assessment Questionnaire and presence of comorbidities were independently associated with impaired HRQoL (lower 15D scores), whereas Psoriasis Area Severity Index (PASI) and DLQI were not. Younger age and higher Psoriatic Arthritis Disease Activity Score and PASI scores were independently associated with impaired skin quality of life (higher DLQI score).

Conclusion: Our study highlights the negative impact the psychosocial burden, impaired physical function and comorbidities has on reduced HRQoL in PsA outpatients. Thus, to further improve HRQoL in PsA patients, not only physical concerns but also psychological concerns need to be addressed.