Table 4 Area under the ROC curve of prediction methods with different osseous structure indicators

Bone mineral density

0.323

0.032

0.174~0.473

Volume of sclerotic bone

0.600

0.225

0.434~0.766

Volume of soft tissue

0.573

0.377

0.410~0.736

Combined volume (sclerotic bone and soft tissue)

0.654

0.061

0.501~0.808

Composite index (logistic regression model integrating bone mineral density and volume of sclerotic bone)

0.765

0.001

0.630~0.900