Table 3. Grading of chronic allograft nephropathy (CAN) according to the Banff 97 classification .
| CAN Grades | Number of patients | Percentage |
| Ia | 12 | 28.6 |
| IIa | 15 | 35.7 |
| IIb | 10 | 23.8 |
| IIIa | 05 | 11.9 |
| Total | 42 | 100 |
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