Table 2.
Predictive values of urinary hepcidin level in detection of iron deficiency
| Urinary hepcidin-25 level for detection of | |||
|---|---|---|---|
| Stage-1(ID) | Stage-2(ID) | Stage-3(IDA) | |
| Area under ROC curve | 0.838 | 0.944 | 0.999 |
| Standard error | 0.058 | 0.034 | 0.004 |
| 95%confidence interval | 0.707-0.927 | 0.840-0.988 | 0.927-1.000 |
| Significance level p (area = 0.05) | 0.0001 | 0.0001 | 0.0001 |
| Cut off point (nmol/mmol Cr) | ≤ 0.94 | ≤ 0.42 | ≤ 0.08 |
| Sensitivity (%) | 88.0 | 96.0 | 96.0 |
| Specificity (%) | 88.0 | 92.0 | 100.0 |
| Positive predictive value (%) | 88.0 | 92.3 | 100 |
| Negative predictive value (%) | 88.0 | 95.8 | 96.2 |