A DAS28 score less than which value indicates remission?

• A. Less than 2.6
• B. Less than 3.2
• C. Less than 5.1
• D. Less than 4.0

Answer: (A)

DAS28 measures how active rheumatoid arthritis is by combining the number of tender and swollen joints (out of 28), the patient’s global health assessment, and an inflammatory marker (ESR or CRP). The score can range from near 0 up to around 9–10, with lower numbers meaning less disease activity. Remission is defined by most guidelines as a DAS28 of 2.6 or less, meaning there is minimal clinical and inflammatory activity. Therefore, a DAS28 score below 2.6 best indicates remission. The other values reflect low, moderate, or high disease activity (for example, up to 3.2 is low activity, 3.2–5.1 is moderate, and above 5.1 is high), so they do not indicate remission.