SDAI and other Rheumatoid Arthritis Activity Scores
Disease activity categories and respective cut-points for the CDAI, SDAI and DAS28

Ranges: CDAI = 0 to 80; SDAI = 0 to 100; DAS28 = 0.5 to 9. HDA: High Dose Activity; MDA:
Moderate Dose Activity; LDA: Low Dose Activity; CDAI: Clinical Disease Activity Index; SDAI