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. 2018 Jan 11;13(1):e0190887. doi: 10.1371/journal.pone.0190887

Table 4. Diagnostic accuracy of ceruloplasmin at the conventional cutoff value in whole group.

CP(mg/L) No. of patients diagnosed Sensitivity(%, 95% CI) Specificity(%, 95% CI) PPV(%, 95% CI) NPV(%, 95% CI)
WD Non-WD Total
< 200 294 718 1023 99.0(98.9–99.1) 80.9(79.6–82.2) 29.1(26.3–31.9) 99.9(99,8–100.0)
≥ 200 3 3033 3036
Total 297 3751 4048

CP, CI, confidence interval, Ceruloplasmin; WD, Wilson’s disease; PPV, positive predictive value; NPV, negative predictive value.