Fig. 2From: Neutrophil gelatinase-associated lipocal in protein levels as an acute appendicitis biomarker in childrenThe sensitivity and specificity percentages of preoperative serum NGAL for detecting appendicitis in children. The area under the ROC curve, NGAL sensitivity of 77.3 % and specificity of 97.4 %, were identified when the Alvarado score was set to a cut-off point of “7”Back to article page