| Causes | Number of patients N = 462 (%) |
| Hypertension | 214 (46.32) |
| Diabetes | 97 (20.99) |
| Mixed nephropathy (Hypertension et Diabetes) | 69 (15.00) |
| Lupus nephritis | 2 (0.43) |
| HIV | 1 (0.21) |
| Focal segmental glomerulosclerosis | 10 (2.16) |
| Membranous nephropathy | 12 (2.59) |
| Amyloidosis | 8 (1.72) |
| Minimal change disease | 4 (0.86) |
| Obstructive uropathy | 3 (0.65) |
| Autosomal dominant polycystic kidney disease | 24 (5.19) |
| Hemopathy | 4 (0.86) |
| Urinary lithiasis | 6 (1.29) |
| undetermined | 8 (1.73) |