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Table 2 Agreement of remission and response rates calculated with DAS28(4v)-ESR and DAS28(4v)-CRP at different timepoints after initiating biological therapy

From: Comparison of remission criteria in a tumour necrosis factor inhibitor treated rheumatoid arthritis longitudinal cohort: patient global health is a confounder

  κ value
Remission – 3 months 0.689 (P <0.0001)
Remission – 6 months 0.617 (P <0.0001)
Remission – 12 months 0.717 (P <0.0001)
Response – 3 months 0.556 (P <0.0001)
Response – 6 months 0.731 (P <0.0001)
Response – 12 months 0.725 (P <0.0001)
  1. κ value according to Landis and Koch interpretation. DAS28(4v)-ESR, disease activity score based on 28-joint count, erythrocyte sedimentation rate and patient global health, DAS28(4v)-CRP, disease activity score based on 28-joint count, C-reactive protein and patient global health.