Table 2

Distribution of progressive IMI-APPROACH patients across clusters.

Cluster (members)No progressionOnly painOnly structureBoth
C1 (69)39 (57%)20 (29%)7 (10%)3 (4%)
C2 (84)45 (54%)21 (25%)16 (19%)2 (2%)
C3 (68)30 (44%)25 (37%)7 (10%)6 (9%)