Table 5. Characteristics of subjects who developed CKD of unknown etiology.
| Case 1 | Case 2 | |
|---|---|---|
| Sex | Male | Male |
| Age (years) | 30.6 | 33.1 |
| Month of Acute Presentation | June 2016 | April 2017 |
| Occupation | Seasonal sugarcane seed cutter; not working in the 1 month prior | Seasonal sugarcane seed cutter; working in the 1 month prior |
| Healthy Baseline | ||
| Creatinine (mg/dL) | 1.2 | 1.3 |
| Hematocrit (%) | Unknown* | 42 |
| Hemoglobin (g/dL) | Unknown* | Unknown* |
| Leukocytes (cells/mm3) | Unknown* | Unknown* |
| Acute Presentation | ||
| Creatinine (mg/dL) | 1.4 | 2.97 |
| Hematocrit (%) | 32.0 | 31.3 |
| Hemoglobin (g/dL) | Unknown* | 10.4 |
| Leukocytes (cells/mm3) | Unknown* | 10400 |
| AKI Stage | AKIN criteria not met | 2 |
| Number of Days from Baseline to | ||
| Acute Visit | 30 | 97 |
| Number of Days from Acute to | ||
| CKD Diagnosis | 508 | 93 |
| CKD Stage | 3 | 3 |
| Concentration of Trace Element in Toenail (mg/kg) | ||
| Nickel | 0.24 | 0.48 |
| Aluminum | 62.64 | 30.47 |
| Vanadium | 0.20 | <MDL |
| Manganese | 1.63 | 1.36 |
| Iron | 81.89 | 15.46 |
| Cobalt | <MDL | 0.02 |
| Copper | 4.98 | 3.06 |
| Zinc | 134.62 | 72.11 |
| Arsenic | 0.11 | <MDL |
| Selenium | 0.84 | <MDL |
| Cadmium | <MDL | <MDL |
| Mercury | 0.12 | 0.13 |
| Lead | 0.06 | <MDL |
| Uranium | <MDL | <MDL |
| Chromium | 0.42 | <MDL |
*Reliance on retrospective review of medical records for clinical parameters resulted in unknown values for measurements not studied during clinical encounter.