Table 2. Average levels of renal markers among seropositive SLE subjects and seronegative controls.
| Renal Markers (Unit) | Female | Male | ||||
|---|---|---|---|---|---|---|
| Seropositive SLE | Control | P value | Seropositive SLE | Control | P value | |
| Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | |||
| eGFR | 82.7±22.2 | 90.5±20.8 | <0.001 | 80.3±27.8 | 85.2±18.7 | 0.415 |
| BUN/creatinine | 20.1±5.3 | 19.3±6.1 | 0.145 | 18.2±5.1 | 17.3±5.5 | 0.413 |
| BUN (mg/dL) | 15.6±4.9 | 13.9±4.7 | <0.00001 | 21.0±10 | 16.4±5.5 | 0.024 |
| Creatinine (Mg/Dl) | 0.8±0.2 | 0.7±0.2 | 0.129 | 1.1±0.4 | 1.0±0.2 | 0.081 |
| Cystatin C (mg/L) | 1.0±0.3 | 0.9±0.2 | <0.00001 | 1.2±0.4 | 1.0±0.3 | 0.006 |
| Albumin (G/Dl) | 4.4±0.4 | 4.6±0.3 | <0.001 | 4.5±0.4 | 4.6±0.3 | 0.138 |
| Sodium (Mmol/L) | 141.5±3.8 | 141.5±2.8 | 0.864 | 141.3±4.1 | 142.0±2.8 | 0.423 |
| Potassium (Mmol/L) | 4.4±0.4 | 4.4±0.4 | 0.799 | 4.9±1.2 | 4.5±0.4 | 0.068 |
| Chloride (Mmol/L) | 101.0±3.5 | 101.3±2.8 | 0.430 | 100.5±3.9 | 101.0±2.9 | 0.535 |
| Total bicarbonate (Mmol/L) | 22.5±3 | 22.3±2.9 | 0.603 | 22.3±3.4 | 22.7±3.1 | 0.497 |
| Calcium (Mg/Dl) | 9.8±0.4 | 9.6±0.4 | <0.001 | 9.6±0.4 | 9.7±0.4 | 0.407 |
| Phosphate (Mg/Dl) | 3.8±0.6 | 3.7±0.5 | 0.055 | 3.7±0.6 | 3.5±0.6 | <0.000001 |
| Magnesium (Mg/Dl) | 2.1±0.2 | 2.1±0.2 | 0.415 | 2.1±0.2 | 2.1±0.2 | 0.270 |