15.87 (13.04 to 24.36), n = 66 vs. 23.56 (17.26 to 27.12), n = 19
SLE + LN patients vs. SLE non-LN patients
16.42 (13.09 to 24.71), n = 23 vs. 15.72 (12.81 to 24.30), n = 43
Continuous variables presented as the median (interquartile range). LN, lupus nephritis; SLE, systemic lupus erythematosus The area under the curve (AUC) was calculated from nonparametric receiver operating characteristic (ROC) curves constructed to test the ability of serum TNF-like weak inducer of apoptosis (TWEAK) to distinguish between patients and healthy controls. *P < 0.05. The Mann- Whitney U test was used to compare between two groups.