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Concordance analysis among the evaluations with respected to vessel diameter/inflammation.
| Classification | Kappa | CI 95% | Concordance |
| Degree 0: no vessels or inflammation | - | - | - |
| Degree 1: little inflammation, vessels of small diameter | 0.383 | 0.061 – 0.706 | Weak |
| Degree 2: moderate inflammatory reaction, medium diameter vessels | 0.339 | 0.017 – 0.661 | Weak |
| Degree 3: intense inflammatory reaction, vessels of large diameter | 0.853 | 0.531 – 1 | Excellent |
CI – confidence interval.
