Mean fecal calprotectin values.

<p>Mean fecal calprotectin values in the groups with appendicitis, infectious enteritis and healthy controls.</p

Receiver operating characteristic (ROC) curve for WBC and CRP.

<p>Receiver operating characteristic (ROC) curve for WBC (AUC: 0.728, 95% CI: 0.473–0.983, p = 0.098) and CRP in prediction the presence of acute appendicitis (AUC: 0.316, 95% CI: 0.033–0.593, p = 0.181).</p

Negative control with specific anti calprotectin antibody.

<p>Negative reaction (no gold stain) following immunochemical staining.</p

Receiver operating characteristic (ROC) curve for fecal calprotectin.

<p>Receiver operating characteristic (ROC) curve for fecal calprotectin in prediction the presence of acute appendicitis. The area under the curve (AUC) was 0.869 (95% confidence interval (CI) CI 0.715–1.0), p = 0.009.</p