Factors associated with physical function among people with systemic sclerosis: a SPIN cohort cross-sectional study

• Published in: Rheumatology (Oxford, England) England), 2024-10, Vol.63 (10), p.2660-2669
• Main Authors: Dal Santo, Tiffany, Rice, Danielle B, Carrier, Marie-Eve, Virgili-Gervais, Gabrielle, Levis, Brooke, Kwakkenbos, Linda, Golberg, Meira, Bartlett, Susan J, Gietzen, Amy, Gottesman, Karen, Guillot, Geneviève, Hudson, Marie, Hummers, Laura K, Malcarne, Vanessa L, Mayes, Maureen D, Mouthon, Luc, Richard, Michelle, Sauvé, Maureen, Wojeck, Robyn K, Geoffroy, Marie-Claude, Benedetti, Andrea, Thombs, Brett D
• Format: Article
• Language: English
• Subjects: Adult; Age Factors; Aged; Cohort Studies; Cross-Sectional Studies; Female; Humans; Life Style; Male; Middle Aged; Patient Reported Outcome Measures; Scleroderma, Systemic - physiopathology; Sex Factors; Smoking - epidemiology
• ISSN: 1462-0324; 1462-0332; 1462-0332
• DOI: 10.1093/rheumatology/keae162

To compare physical function in systemic sclerosis (SSc, scleroderma) to general population normative data and identify associated factors. Scleroderma Patient-centered Intervention Network Cohort participants completed the Physical Function domain of the Patient-Reported Outcomes Measurement Information System Version 2 upon enrolment. Multivariable linear regression was used to assess associations of sociodemographic, lifestyle, and disease-related variables. Among 2385 participants, the mean physical function T-score (43.7, SD = 8.9) was ∼2/3 of a standard deviation (SD) below the US general population (mean = 50, SD = 10). Factors associated in the multivariable analysis included older age (-0.74 points per SD years, 95% CI -0.78 to -1.08), female sex (-1.35, -2.37 to -0.34), fewer years of education (-0.41 points per SD in years, -0.75 to -0.07), being single, divorced, or widowed (-0.76, -1.48 to -0.03), smoking (-3.14, -4.42 to -1.85), alcohol consumption (0.79 points per SD drinks per week, 0.45-1.14), BMI (-1.41 points per SD, -1.75 to -1.07), diffuse subtype (-1.43, -2.23 to -0.62), gastrointestinal involvement (-2.58, -3.53 to -1.62), digital ulcers (-1.96, -2.94 to -0.98), moderate (-1.94, -2.94 to -0.93) and severe (-1.76, -3.24 to -0.28) small joint contractures, moderate (-2.10, -3.44 to -0.76) and severe (-2.54, -4.64 to -0.44) large joint contractures, interstitial lung disease (-1.52, -2.27 to -0.77), pulmonary arterial hypertension (-3.72, -4.91 to -2.52), rheumatoid arthritis (-2.10, -3.64 to -0.56) and idiopathic inflammatory myositis (-2.10, -3.63 to -0.56). Physical function is impaired for many individuals with SSc and is associated with multiple disease factors.