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Aim: To determine characteristics associated with more severe outcomes in a global registry of people with systemic lupus erythematosus (SLE) and COVID-19., Methods: People with SLE and COVID-19 reported in the COVID-19 Global Rheumatology Alliance registry from March 2020 to June 2021 were included. The ordinal outcome was defined as: (1) not hospitalised, (2) hospitalised with no oxygenation, (3) hospitalised with any ventilation or oxygenation and (4) death. A multivariable ordinal logistic regression model was constructed to assess the relationship between COVID-19 severity and demographic characteristics, comorbidities, medications and disease activity., Results: A total of 1606 people with SLE were included. In the multivariable model, older age (OR 1.03, 95% CI 1.02 to 1.04), male sex (1.50, 1.01 to 2.23), prednisone dose (1-5 mg/day 1.86, 1.20 to 2.66, 6-9 mg/day 2.47, 1.24 to 4.86 and ≥10 mg/day 1.95, 1.27 to 2.99), no current treatment (1.80, 1.17 to 2.75), comorbidities (eg, kidney disease 3.51, 2.42 to 5.09, cardiovascular disease/hypertension 1.69, 1.25 to 2.29) and moderate or high SLE disease activity (vs remission; 1.61, 1.02 to 2.54 and 3.94, 2.11 to 7.34, respectively) were associated with more severe outcomes. In age-adjusted and sex-adjusted models, mycophenolate, rituximab and cyclophosphamide were associated with worse outcomes compared with hydroxychloroquine; outcomes were more favourable with methotrexate and belimumab., Conclusions: More severe COVID-19 outcomes in individuals with SLE are largely driven by demographic factors, comorbidities and untreated or active SLE. Patients using glucocorticoids also experienced more severe outcomes., Competing Interests: Competing interests: MFU-G has received research grants from Pfizer and Janssen, not related to this manuscript. AD-G is supported by the Rheumatology Research Foundation (Scientist Development Award) and the Centers for Disease Control and Prevention. CR-S has received research grants from Janssen, not related to this manuscript. AEC has received consulting fees from AstraZeneca, BMS and GSK, all unrelated to this manuscript. LW has received consulting fees and speaker’s honoraria from Aurinia Pharma unrelated to this manuscript. GJP-E reports no competing interests related to this work. Outside of this work, he reports personal consulting and/or speaking fees from Pfizer, GSK, Janssen and Sanofi (all

Objectives: This study aimed to determine the prevalence of ultrasound-detected tendon abnormalities in healthy subjects (HS) across the age range., Methods: Adult HS (age 18-80 years) were recruited in 23 international Outcome Measures in Rheumatology ultrasound centres and were clinically assessed to exclude inflammatory diseases or overt osteoarthritis before undergoing a bilateral ultrasound examination of digit flexors (DFs) 1-5 and extensor carpi ulnaris (ECU) tendons to detect the presence of tenosynovial hypertrophy (TSH), tenosynovial power Doppler (TPD) and tenosynovial effusion (TEF), usually considered ultrasound signs of inflammatory diseases. A comparison cohort of patients with rheumatoid arthritis (RA) was taken from the Birmingham Early Arthritis early arthritis inception cohort., Results: 939 HS and 144 patients with RA were included. The majority of HS (85%) had grade 0 for TSH, TPD and TEF in all DF and ECU tendons examined. There was a statistically significant difference in the proportion of TSH and TPD involvement between HS and subjects with RA (HS vs RA p<0.001). In HS, there was no difference in the presence of ultrasound abnormalities between age groups., Conclusions: Ultrasound-detected TSH and TPD abnormalities are rare in HS and can be regarded as markers of active inflammatory disease, especially in newly presenting RA., Competing Interests: Competing interests: There are no declared competing interests from authors except the following: CC declared grants from NIHR Versus Arthritis, Lilly sponsored EULAR conference travel, Modern Biosciences payment as DSM committee member, Roche consultancy fee and Novartis sponsored writing of one medical paper. KI declared a Mitsubishi-Tanabe research grant for RA; Abbvie, Eli Lilly, Mitsubishi-Tanabe, Bristol-Myers-Squib and Novartis speaker’s fees; and participation on a DSM board for Abbvie, Eli Lilly and Mitsubishi-Tanabe. RK declared support from Abbvie, Roche, Novartis and UCB with payments for travel to meetings/lectures, presentations, speakers’ bureaus, manuscript writing/educational events., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY. Published by BMJ.)