Carotid Atherosclerosis as a Surrogate Maker of Cardiovascular Disease in Diabetic Patients
Receiver operating characteristics (ROC) curve. Sensitivity represents the true-positive results and 1—specificity, the false-positive results. The best markers have ROC curves that are shifted to the left with areas under the curve near unity. Nondiagnostic markers are represented by diagonals with areas under the ROC curves close to 0.5. The ROC curve analysis shows that the best marker of CVD was carotid IMT, with an area under the ROC curve of 0.718 (95% confidence interval (CI), 0.650–0.785).
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