Table 2.

Contingency tables comparing the Banff 2019 diagnosis and the six clusters derived from semi-supervised learning. Proportions represent the distribution in the clusters per Banff category (n=3510 biopsies)

Banff 2019 DiagnosisNCluster 1 (%)Cluster 2 (%)Cluster 3 (%)Cluster 4 (%)Cluster 5 (%)Cluster 6 (%)
No rejection26592387 (89.8)53 (2.0)4 (0.2)215 (8.1)0 (0.0)0 (0.0)
Borderline changes327261 (79.8)9 (2.8)26 (8.0)23 (7.0)0 (0.0)8 (2.4)
TCMR28548 (16.8)25 (8.8)184 (64.6)5 (1.8)0 (0.0)23 (8.1)
ABMR1228 (6.6)4 (3.3)0 (0.0)56 (45.9)53 (43.4)1 (0.8)
Mixed borderline rejection271 (3.7)3(11.1)1 (3.7)3 (11.1)15 (55.6)4 (14.8)
Mixed rejection905 (5.6)7 (7.8)16 (17.8)5 (5.6)27 (30.0)30 (33.3)
Total35102710 (77.2)101 (2.9)231 (6.6)307 (8.7)95 (2.7)66 (1.9)