POMC and ischemia: The ROC curve showed that an ACTH/cortisol ratio > 2.4 was a poor diagnostic test to predict ischemia with an area under the ROC of 0.63, with sensitivity of 62.8% (48.1‐75.9), specificity of 64.2% (53.7‐73.8) and a likelihood ratio of 1.75 for the presence of an ischemic lesion (P = .0071).