| Parameter | Group | Mean ± SD | P-value |
| Creatinine (mg/dl) | Preeclampsia | 0.5446 ± 0.1 | 0.00 |
| Normal pregnant | 0.6920 ± 0.1 | ||
| Urea (mg/dl) | Preeclampsia | 18.9800 ± 6.3 | 0.01 |
| Normal pregnant | 16.2400 ± 3.1 | ||
| Uric acid (mg/dl) | Preeclampsia | 6.0880 ± 1.5 | 0.00 |
| Normal pregnant | 4.0540 ± 0.5 |