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Percentage of patients switching from initial therapy.
Notes: First year: Eta vs. Ada p=0.05; Eta vs. Inf p=0.25; Ada vs. Inf p=0.55. Second year: Eta vs. Ada p=0.18; Eta vs. Inf p=0.05; Ada vs. Inf p=0.64.
Abbreviations: Eta, etanercept; Ada, adalimumab; Inf, infliximab.
