Figure 8From: Important CT findings for prediction of severe appendicitis: involvement of retroperitoneal spaceReceiver characteristic curve derived from sensitivities and specificities of various clinical variables. RPS count is plotted in light green line with the following variables: CRP level (light blue), appendicolithiasis (pink), appendiceal diameter (dark blue), and age (red). Yellow line is a reference line. RPS count had the largest area under the curve of 0.70.Back to article page