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The partial scoring of each compartment (glomeruli, tubules, and interstitium) was summed to obtain the cumulative score
| Cumulative score (glomeruli, tubules, interstitium) | Final score | Renal injury |
|---|---|---|
| 0–0.9 | 0 | No histological abnormality |
| 1.0–2.9 | 1 | Minimal |
| 3.0–6.9 | 2 | Mild |
| 7.0–10.9 | 3 | Moderate |
| 11.0–13.9 | 4 | Marked |
| 14.0–15.0 | 5 | Severe |
The cumulative score was then converted to a final score indicating the degree of renal injury
