Additional file 1.

Supplemental figures. Figure S1: Cumulative plot of the vSHS score variation between baseline and month 12. Figure S2: Fit of the final model estimated by receiver operating characteristic curve analysis. Figure S3: Observed patient frequencies in the different cells of the ESPOIR matrix.

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Fautrel et al. Arthritis Research & Therapy 2012 14:R249   doi:10.1186/ar4092