Table 3.
International classification of interstitial and vascular lesions in diabetic kidney disease
| Type of Lesion and Criteria | Score |
| IFTA, % | |
| Absent | 0 |
| <25 | 1 |
| 25–50 | 2 |
| >50 | 3 |
| Interstitial inflammation | |
| Absent | 0 |
| Infiltration only in relation to IFTA | 1 |
| Infiltration in areas without IFTA | 2 |
| Vascular lesions arteriolar hyalinosis | |
| Absent | 0 |
| At least one area of arteriolar hyalinosis | 1 |
| More than one area of arteriolar hyalinosis | 2 |
| Presence of large vessels arteriosclerosis | |
| No intimal thickening | 0 |
| Intimal thickening less than thickness of media | 1 |
| Intimal thickening greater that thickness of media | 2 |
IFTA, interstitial fibrosis and tubular atrophy.