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OCN cutoff points
| OCN-change cutoff point at week 12 (μg/L) | Sensitivity | Specificity | Accuracy |
|---|---|---|---|
| 0 | 0.986 | 0.1 | 0.728 |
| 5 | 0.938 | 0.183 | 0.718 |
| 10 | 0.884 | 0.317 | 0.718 |
Notes: Sensitivity (TP rate) = TP/(TP + FN); specificity (TN rate) = TN/(TN + FP); accuracy (correct-assessment rate) = (TN + TP)/(TN + TP + FN + FP). Only cutoff points with accuracy >0.7 presented.
Abbreviations: OCN, osteocalcin; TP, true positive; FN, false negative; TN, true negative; FP, false positive.
