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.