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Receiver operating characteristic (ROC) curve of DSCSA for the prediction of LCCSS. The optimal cut-off point of DSCSA was 98.60 mm2 , with sensitivity 80.0%, specificity 80.8%, and area under the curve of 0.87 (95% CI = 0.83–0.92). AUC = area under the curve, CI = confidence intervals, DSCSA = dural sac cross-sectional area, LCCSS = lumbar central canal spinal stenosis.
