Santo, Tiffany Dal, 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, and Geoffroy, Marie-Claude
Objectives To compare physical function in systemic sclerosis (SSc, scleroderma) to general population normative data and identify associated factors. Methods 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. Results 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). Conclusion Physical function is impaired for many individuals with SSc and is associated with multiple disease factors. [ABSTRACT FROM AUTHOR]