Feasibility of SLEDAI-2000 and BILAG-2004 scoring systems for assessing renal disease activity in children with lupus nephritis

ZHOU Jie-Qing; JIANG Hong

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Chinese Journal of Contemporary Pediatrics ›› 2012, Vol. 14 ›› Issue (10) : 775-779.

Feasibility of SLEDAI-2000 and BILAG-2004 scoring systems for assessing renal disease activity in children with lupus nephritis

ZHOU Jie-Qing, JIANG Hong

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Abstract

OBJECTIVE: To study feasibility of Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2000) and British Isles Lupus Assessment Group 2004 (BILAG-2004) scoring systems for assessing renal disease activity in children with lupus nephritis (LN). METHODS: The clinical data of 159 children with systemic lupus erythematosus (SLE) and LN were collected, and disease activity was assessed by SLEDAI-2000 and BILAG-2004 scoring systems. The correlations between SLEDAI-2000 and BILAG-2004 scores and 24-hour urinary protein excretion and renal pathology index were analyzed. The SLEDAI-2000 and BILAG-2004 scoring systems were evaluated using ROC curve. RESULTS: Approximately one third (31.5%) of the 159 children had a moderate level of 24-hour urinary protein excretion. Among the 37 patients undergoing renal biopsy, 46.0% had diffuse LN (type Ⅳ). 24-hour urinary protein excretion was positively correlated with both SLEDAI-2000 (r=0.36, P<0.05) and BILAG-2004 scores (r= 0.39, P<0.05). Children with types Ⅰ, Ⅱ, Ⅲ, and Ⅳ LN had pathology activity index (AI) which positively correlated with SLEDAI-2000 scores (r=0.86, 0.88, 0.84, 0.77 respectively; P<0.05) and BILAG-2004 scores (r= 0.88, 0.98, 0.86, 0.89 respectively; P<0.05). SLEDAI-2000 score showed the best correlation with AI in patients with type Ⅱ LN, followed by those with type Ⅰ LN. BIILAG-2004 score showed the best correlation with AI in patients with type Ⅱ LN, followed by those with type Ⅳ LN. The BILAG-2004 scoring system had an area under the ROC curve (AUC) of 0.93, and the SLEDAI-2000 scoring system had an AUC of 0.88. CONCLUSIONS: BILAG-2004 and SLEDAI-2000 scoring systems can be used to assess renal disease activity of patients with LN. The BILAG-2004 scoring system can provide more reliable and comprehensive assessment.

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Lupus nephritis / BILAG-2004 scoring system / SLEDAI-2000 scoring system / Child

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ZHOU Jie-Qing, JIANG Hong. Feasibility of SLEDAI-2000 and BILAG-2004 scoring systems for assessing renal disease activity in children with lupus nephritis[J]. Chinese Journal of Contemporary Pediatrics. 2012, 14(10): 775-779

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