Background
Disease activity
The juvenile arthritis disease activity score
Physician global assessment | Parent/patient global assessment | Active joint count | Acute-phase reactant (range) | Score range (total) | |
---|---|---|---|---|---|
JADAS | |||||
• JADAS10 | 0–10-cm VAS | 0–10-cm VAS | Simple count, 0–10a
| Normalized ESR (0–10)c
| 0–40 |
• JADAS27 | 0–10-cm VAS | 0–10-cm VAS | Reduced count, 0–27 | Normalized ESR (0–10)c
| 0–57 |
• JADAS71 | 0–10-cm VAS | 0–10-cm VAS | Simple count, 0–71 | Normalized ESR (0–10)c
| 0–101 |
JADAS-CRP | |||||
• JADAS10-CRP | 0–10-cm VAS | 0–10-cm VAS | Simple count, 0–10a
| Normalized CRP (0–10)b
| 0–40 |
• JADAS27-CRP | 0–10-cm VAS | 0–10-cm VAS | Reduced count, 0–27 | Normalized CRP (0–10)b
| 0–57 |
• JADAS71-CRP | 0–10-cm VAS | 0–10-cm VAS | Simple count, 0–71 | Normalized CRP (0–10)b
| 0–101 |
cJADAS | |||||
• cJADAS-10 | 0–10-cm VAS | 0–10-cm VAS | Simple count, 0–10a
| – | 0–30 |
• cJADAS-27 | 0–10-cm VAS | 0–10-cm VAS | Reduced count, 0–27 | – | 0–47 |
• cJADAS-71 | 0–10-cm VAS | 0–10-cm VAS | Simple count, 0–71 | – | 0–91 |
The JADAS-CRP
The cJADAS
The juvenile spondyloarthritis disease activity index
Disease activity states and response to treatment
Inactive disease, low and high disease activity according to the JADAS
JADAS10/71 | JADAS27 | cJADAS10 | |
---|---|---|---|
Oligoarthritis | |||
Inactive disease | ≤1 | ≤1 | ≤1 |
Low disease activity | 1.1 – 2 | 1.1 – 2 | 1.1 – 1.5 |
Moderate disease activity | 2.1 – 4.2 | 2.1 – 4.2 | 1.51 – 4 |
High disease activity | >4.2 | >4.2 | >4 |
Polyarthritis | |||
Inactive disease | ≤1 | ≤1 | ≤1 |
Low disease activity | 1.1 – 3.8 | 1.1 – 3.8 | 1.1 – 2.5 |
Moderate disease activity | 3.9 – 10.5 | 3.9 – 8.5 | 2.51 – 8.5 |
High disease activity | >10.5 | >8.5 | >8.5 |
Definition of inactive disease, remission, and minimal disease activity
Inactive disease |
---|
- No joints with active arthritis |
- No fever, rash, serositis, splenomegaly, or generalized lymphadenopathy attributable to JIA |
- No active uveitis as defined by the SUN Working Group [28] |
- ESR or CRP level within normal limits in the laboratory where tested or, if elevated, not attributable to JIA |
- Physician’s global assessment of disease activity score of best possible on the scale used |
- Duration of morning stiffness of 15 min |