RT Journal Article SR Electronic T1 Association Between Comorbidities and Quality of Life in Psoriatic Arthritis: Results from a Multicentric Cross-sectional Study JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.181471 DO 10.3899/jrheum.181471 A1 Wallis Bavière A1 Xavier Deprez A1 Eric Houvenagel A1 Peggy Philippe A1 Valerie Deken A1 Rene-Marc Flipo A1 Julien Paccou YR 2019 UL http://www.jrheum.org/content/early/2019/10/28/jrheum.181471.abstract AB Objective In psoriatic arthritis (PsA), comorbidities add to the burden of disease, which may lead to poorer quality of life. The purpose of this study was to evaluate the relationship between comorbidities and quality of life (QOL). Methods Patients from a multicentric, cross-sectional study on comorbidities in PsA were included in the analysis. Data on comorbidities were collected and were subsequently used to compute the modified Rheumatic Disease Comorbidity Index (mRDCI). The Medical Outcomes Study Short Form-36 questionnaire physical (PCS) and mental component summary (MCS) scales were used to assess QOL. Results In total, 124 recruited patients fulfilled the ClASsification for Psoriatic ARthritis criteria (CASPAR): 62.1% were male; mean age and mean disease duration were 52.6 ± 12.6 years and 11.3 ± 9.6 years, respectively. The number of comorbid conditions was 2.0 ± 1.3, with 30.6% of the sample having currently or a history of 3 or more comorbidities. In the multivariate linear regression analysis, only anxiety remained significantly related to mental health (p < 0.0001). Anxiety alone accounted for 28.7% of the variance in MCS scores. Moreover, MCS was also significantly associated with the mRDCI score, which explained 4.9% of the variance in MCS [β = –1.56 (standard error 0.64), R2 = 0.049, p = 0.0167]. In contrast, PCS was not significantly associated either with type or number of comorbidities. Conclusion In this study, the type of comorbidity appeared to have a greater effect than the number of comorbidities. Indeed, anxiety in PsA was independently associated with QOL and would thus be an important factor to take into account in daily clinical practice.