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  • Title: Increased risk of hospital admissions in patients with active systemic lupus erythematosus (SLE) classified according to two different SLE disease activity indices: a prospective cohort study.
    Author: Lu MC, Hsu CW, Koo M, Lai NS.
    Journal: Clin Exp Rheumatol; 2023 Jul; 41(7):1409-1416. PubMed ID: 36377575.
    Abstract:
    OBJECTIVES: The aim of this prospective cohort study was to investigate the risk of hospital admissions within one year in patients with active systemic lupus erythematosus (SLE), classified according to the Systemic Lupus Erythematosus Disease Activity Score (SLE-DAS) or the Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K). METHODS: This study was conducted in adult patients with SLE recruited from the rheumatology outpatient department in a regional hospital in southern Taiwan. SLE disease activity was measured with SLE-DAS and SLEDAI-2K. The computerised patient record database was accessed to identify patients' hospital admissions. Cox regression analyses were used to estimate the hazard ratio (HR) for all-cause and SLE-related hospital admission in SLE patients classified by SLE-DAS and SLEDAI-2K. RESULTS: A total of 326 adult patients with SLE completed this study. All-cause and SLE-related hospital admissions within one year occurred in 17.5% and 12.6% of the patients, respectively. Results of the Cox regression analysis indicated that SLE patients with moderate/severe disease activity classified by the SLE-DAS (HR=2.43, p=0.005) but not moderate/severe disease activity classified by the SLEDAI-2K (HR=1.84, p=0.057) was significantly associated with the risk of SLE-related admissions. However, only moderate/severe disease activity classified by the SLE-DAS was significantly associated with the risk of all-cause admissions (HR=1.94, p=0.016). When steroid dosage was considered, only the steroid dosage was significantly associated all-cause and SLE-related admissions. CONCLUSIONS: In this study, SLE disease activity classified by SLE-DAS was significantly associated with an increased risk for both all-cause and SLE-related hospital admissions. Rheumatologists should be vigilant for increased risk of hospital admissions in patients with moderate/high SLE disease activity as classified by SLE-DAS.
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