Sensitivity and specificity of laboratory parameters combined in series and analyzed for ability to discriminate SLE-related PLE from active SLE without PLE.

NLR: negative likelihood ratio; NPV: negative predictive value; PLR: positive likelihood ratio; PPV: positive predictive value; Se: sensitivity; Sp: specificity.Sensitivity and specificity of laboratory parameters combined in series and analyzed for ability to discriminate SLE-related PLE from active SLE without PLE.