| Pre-op | 6 mo-post | 2 yr-post | P |
Serum creatinine (μmol/L) | 76.90 ± 16.91 | 112.40 ± 81.32 | 82.80 ± 14.77 | 0.236 |
Urea nitrogen (g/L) | 4.11 ± 1.05 | 4.78 ± 0.98 | 4.03 ± 1.05 | 0.776 |