Figure 3.

Discordance of joint assessment is dependent on overall number of active joints. Bland-Altman-Plot for patient and biometrician joint counts, plotting the differences of their joint counts (y-axis) against the mean of the joint counts (x-axis). The discordance of assessment increases with higher number of affected joints.

Radner et al. Arthritis Res Ther 2012 14:R61   doi:10.1186/ar3777
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