Age and Serum Creatinine Can Differentiate Wilson Disease Patients with Pseudonormal Ceruloplasmin

Table 5

Accuracy of the logistic regression model.

Group (N)	Cutoff value	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Total (184)	≥0.617	80.2	92.9	90.8	84.3
	≥−1	90.7	80.6	80.4	90.8
Training set (92)	≥0.617	83.7	98.0	97.3	87.3
	≥−1	93.0	81.6	81.6	93.0
Validation set (92)	≥0.617	76.7	87.8	84.6	81.1
	≥−1	88.4	79.6	79.2	88.6

PPV, positive predictive value; NPV, negative predictive value.