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. 2009 Nov 29;69(5):862–867. doi: 10.1136/ard.2009.112714

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Cumulative probability plot of 1-year radiographic progression. Cut-off point was defined by the smallest detectable difference (SDC =36.0)—dotted lines. Inset: progression of interphalangeal (IP) finger joints through anatomical phases as defined in the categorical phase scoring system. Anatomical phases at baseline (T0m) and after 12 months (T12m) are given. The categorical phase scoring system and the Ghent University Scoring System allowed nine and 12 IP joints, respectively, to be identified as remodelled. Eight and nine IP joints were recognised as destructive. Anatomical phases: E, erosive; J, joint space lost; R, remodelled; S, non-erosive. nr, number of IP finger joints.