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Fig. 3 | BMC Musculoskeletal Disorders

Fig. 3

From: Development and validation of a nomogram for predicting the probability of new vertebral compression fractures after vertebral augmentation of osteoporotic vertebral compression fractures

Fig. 3

The receiver operating characteristic curves with corresponding area under the curves of nomogram and independent predictors in training cohort (A) and validation cohort (D). Calibration of the nomogram in training cohort (B) and validation cohort (E). The lines in the figure represent the apparent value, the bias corrected value, and ideal value. The apparent and the bias corrected values are close to each other, which means the nomogram has a good predictive performance. Decision curve analysis for nomogram prediction of risk of postoperative VCFs in training cohort (C) and validation cohort (F). The y-axis shows the net benefit: x-axis shows the threshold probability. The blue line represents the net benefit of our nomogram. The oblique gray line indicates the hypothesis that all patients had positive VCFs. The black horizontal line represents the hypothesis that no patients had positive VCFs

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