Figure 3
Receiver-operator characteristic (ROC) curve of an absolute threshold of 65% for minimal cSO 2 during cardiopulmonary bypass. The threshold discriminates patients with and without postoperative neurocognitive deficit with a sensitivity of 86.7% and a specificity of 65.0% by trend (p = 0.03, AUC = 0.61, without Bonferroni correction). Dashed line is line of identity.