Additional file 1.

Sensitivity analysis comparing the effectiveness algorithm to an alternate definition of the effectiveness gold standard. Table S1 Sensitivity analysis comparing the effectiveness algorithm to an alternate definition of the effectiveness gold standard for biologic users. Table S2 Sensitivity analysis comparing the effectiveness algorithm to an alternate definition of the effectiveness gold standard for biologic and nonbiologic disease-modifying agent in rheumatic disease treatments.

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Curtis et al. Arthritis Research & Therapy 2011 13:R155   doi:10.1186/ar3471