Figure 2.

Receiver operating characteristic (ROC) curve of patients versus volunteers. A) The cutoff Cho/Cr of the frontal region used to differentiate patients with metabolic syndrome from volunteers was ≥ 0.895 with an area under the curve of 0.992, sensitivity of 100.0%, specificity of 93.3%, and accuracy of 97.0%. B) The cutoff NAA/Cr of the frontal lobe used to differentiate patients with metabolic syndrome from volunteers was ≤ 1.77 with an area under the curve of 0.867, sensitivity of 100.0%, specificity of 86.7%, and accuracy of 93.0%