Appendix 3.
Disease Activity Thresholds for Commonly Used Rheumatoid Arthritis Disease Activity Scores
| DAS28 (0–10) | SDAI (0–86) | CDAI (0–76) | RAPID3 (0–30) | |
|---|---|---|---|---|
| High | >5.1 | >26 | >22 | >12 |
| Moderate | 3.2 – 5.1 | 11.1 – 26 | 10.1 – 22 | 6.1 – 12 |
| Low | 2.6 – 3.1 | 3.3 – 11 | 2.9 – 10 | 3.1 – 6 |
| Remission | ≤ 2.5 | ≤ 3.3 | ≤ 2.8 | ≤ 3 |
Adapted from Reference 13. DAS28, Disease Activity Score – 28 joint count; SDAI, Simplified Disease Activity Index; CDAI, Clinical Disease Activity Index; RAPID3, Rheumatoid Arthritis Patient Index of Disease – 3 questions. The range of possible scores is presented in the parentheses.