What CDAI scores define RA disease activity levels?

CDAI ≤2.8 = remission; 2.9–10.0 = low activity; 10.1–22.0 = moderate activity; >22.0 = high activity. CDAI remission is slightly more stringent than DAS28 remission in clinical trials.

What is the advantage of CDAI over DAS28?

CDAI requires no laboratory results and can be calculated instantly at the bedside during clinical assessment, making it ideal for routine clinical practice, telehealth, and resource-limited settings.

CDAI — Clinical Disease Activity Index for Rheumatoid Arthritis

Calculate the Clinical Disease Activity Index (CDAI = SJC + TJC + PtGA + PhGA) without laboratory tests to assess rheumatoid arthritis activity quickly at the point of care.

Use the full interactive calculator below, or

CDAI — Clinical Disease Activity Index for Rheumatoid Arthritis

Frequently Asked Questions

What CDAI scores define RA disease activity levels?

What is the advantage of CDAI over DAS28?