https://www.selleckchem.com/products/avelestat-azd9668.html Fatigue is one of the most common symptoms reported in patients living with SLE. We aim to 1) determine if different trajectories of fatigue associate with specific latent classes of disease activity and 2) define the patient characteristics and associated factors in different latent classes. Data from an inception cohort of adult patients from the Toronto Lupus Clinic from 1997-2018 were analyzed. Fatigue levels were measured using Fatigue Severity Scale (FSS) and disease activity by the Adjusted Mean Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) (AMS). Dual latent class trajectory analysis, for fatigue and AMS, was performed. Univariable and multivariable logistic regression analyses assessed the association of baseline variables with class membership. Among 280 patients, 4 dual classes (C) of fatigue and disease activity were identified C1- lowest disease activity and second highest fatigue trajectory (27%); C2- second highest disease activity and highest fatigue trajectory (30 activity were associated with higher cumulative glucocorticoid use. Higher baseline glucocorticoid use was more likely associated with more fatigue while older age at SLE diagnosis was associated with less fatigue.Systemic lupus erythematosus (SLE) is a systemic autoimmune/inflammatory disease. Patients diagnosed with juvenile-onset SLE (jSLE), when compared to individuals with adult-onset SLE, develop more severe organ involvement, increased disease activity and greater tissue and organ damage. In adult-onset SLE, clinical characteristics, pathomechanisms, disease progression and outcomes do not only vary between individuals and age groups, but also ethnicities. However, in children and young people, the influence of ethnicity on disease onset, phenotype and outcome has not been investigated in detail. In this study, we investigated clinical and laboratory characteristics in pediatric SLE patients from diff