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Kyoto classification score
| Kyoto classification | Score |
| Atrophy | |
| None, C1 | 0 |
| C2 and C3 | 1 |
| O1-O3 | 2 |
| Intestinal metaplasia | |
| None | 0 |
| Antrum | 1 |
| Corpus and antrum | 2 |
| Enlarged folds | |
| Absence | 0 |
| Presence | 1 |
| Nodularity | |
| Absence | 0 |
| Presence | 1 |
| Diffuse redness | |
| None | 0 |
| Mild (with RAC) | 1 |
| Severe | 2 |
| Kyoto score | 0-8 |
RAC: Regular arrangement of collecting venules.
