Use the SDAI Rheumatoid Arthritis Calculator to quickly determine disease activity based on key clinical parameters. This tool is vital for monitoring treatment effectiveness and guiding therapeutic decisions in rheumatoid arthritis management.
Formula:
The SDAI (Simplified Disease Activity Index) is calculated using the following formula:
SDAI = SJC (28) + TJC (28) + PGA + EGA + CRP (mg/dL)
- SJC (28): Swollen Joint Count (0-28)
- TJC (28): Tender Joint Count (0-28)
- PGA: Patient Global Assessment (0-10 scale)
- EGA: Evaluator Global Assessment (0-10 scale)
- CRP (mg/dL): C-reactive protein (in mg/dL)