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09-07-2018 | Systemic lupus erythematosus | Article

Clinical characteristics and risk factors of infections in patients with systemic lupus erythematosus

Journal:
Clinical Rheumatology

Authors: Chengcheng Hou, Ou Jin, Xi Zhang

Publisher: Springer London

Abstract

To investigate the clinical characteristics of infection in SLE patients and analyze the risk factors of infection. A retrospective analysis method was used and the data were collected from 173 case times of 142 hospitalized patients. We found the incidence rate of infections in SLE was 50.7%. The most common infection sites were lungs, followed by upper respiratory tracts and urinary tracts. The most common pathogens were bacteria, followed by fungi. The infection-associated risk factors were duration of hospitalization, lupus activity state, the use of high-dose corticosteroids and immunosuppressive agents, the low serum level of complements 3 and 4 (C3 and C4), fever, the high level of erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP), the abnormality of white blood cell (< 4 × 109/L or > 10 × 109/L), and the low level of albumin (P < 0.05 or P < 0.001). The independent risk factors for SLE patients with infection consist of the abnormality of white blood cells, the high level of CRP, the low serum level of C4, and longtime hospitalization. Attention should be paid to the risk factors of infection, and treatment to enhance immunity should be carried out to reduce the chance of infection.

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