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Table 1 American College of Rheumatology disease activity measures for rheumatoid arthritis clinical trials: Core Set

From: The ACR20 and defining a threshold for response in rheumatic diseases: too much of a good thing

Disease activity measure

  1

Tender joint count

  2

Swollen joint count

  3

Patient’s assessment of pain

  4

Patient’s global assessment of disease activity

  5

Physician’s assessment of physical function

  6

Patient’s assessment of physical function

  7

Acute-phase reactant value

For trial duration ≥1 year and agent being tested as a ‘DMARD’, also perform:

  8

Radiography or other imaging technique

  1. DMARD disease-modifying anti-rheumatic drug.