CCR, too low and too high classification rate (%) and average CCR of JADAS10 and cJADAS10 cut-off values proposed by Backström et al13 20 and by Consolaro et al12 17–19 for selected disease activity levels of JIA; CID according to Wallace,7 LDA and MDA as proposed by Beukelman et al10 and HDA as proposed by Backström et al13
| Cut-off range | CCR (%) | Too low (%) | Too high (%) | |||||
| JADAS10 | cJADAS10 | JADAS10 | cJADAS10 | JADAS10 | cJADAS10 | JADAS10 | cJADAS10 | |
| Oligoarticular disease | ||||||||
| CID7 | ||||||||
| Backström et al20 | 0.5 | 0.5 | 74.4 | 74.4 | – | – | 25.6 | 25.6 |
| Consolaro et al17 18 | 1.0 | 1.0 | 84.9 | 84.8 | – | – | 15.1 | 15.1 |
| Consolaro et al19 | 1.5 | 1.2 | 90.7 | 84.9 | – | – | 9.3 | 15.1 |
| LDA10 | ||||||||
| Backström et al20 | 0.6–2.7 | 0.6–2.7 | 41.9 | 41.9 | 27.9 | 27.9 | 30.2 | 30.2 |
| Consolaro et al17 18 | 1.1–2.0 | 1.1–1.5 | 23.2 | 11.6 | 34.9 | 34.9 | 41.9 | 53.5 |
| Consolaro et al19 | 1.6–3.9 | 1.3–3.4 | 48.8 | 48.8 | 46.5 | 37.2 | 4.6 | 14.0 |
| MDA10 | ||||||||
| Backström et al13 20 | 2.8–6.6 | 2.8–6.6 | 65.2 | 60.9 | 9.7 | 13.0 | 26.1 | 26.1 |
| Consolaro et al12 17 18 | 2.1–4.2 | 1.6–4.0 | 32.6 | 32.6 | 2.2 | 2.2 | 65.2 | 65.2 |
| Consolaro et al19 | 4.0–16.4 | 3.5–14.3 | 71.7 | 78.3 | 28.3 | 19.6 | 0.0 | 2.2 |
| HDA13 | ||||||||
| Backström et al13 | >6.6 | >6.6 | 75.0 | 75.0 | 25.0 | 24.0 | – | – |
| Consolaro et al12 18 | >4.2 | >4.0 | 100.0 | 87.5 | 0 | 12.5 | – | – |
| Consolaro et al19 | >16.4 | >14.3 | 0.0 | 0.0 | 100.0 | 100.0 | – | – |
| Average CCR of all disease activity levels | ||||||||
| Backström et al13 20 | 64.1 | 63.1 | ||||||
| Consolaro et al12 17 18 | 60.2 | 54.1 | ||||||
| Consolaro et al19 | 52.8 | 53.0 | ||||||
| Polyarticular disease | ||||||||
| CID7 | ||||||||
| Backström et al20 | 0.7 | 0.7 | 65.3 | 65.3 | – | – | 34.7 | 34.7 |
| Consolaro et al17 18 | 1.0 | 1.0 | 76.4 | 76.4 | – | – | 23.6 | 23.6 |
| Consolaro et al19 | 2.6 | 2.4 | 90.3 | 86.1 | – | – | 9.7 | 13.9 |
| LDA10 | ||||||||
| Backström et al20 | 0.8–3.9 | 0.8–3.9 | 63.6 | 63.6 | 12.1 | 12.1 | 24.2 | 24.2 |
| Consolaro et al17 18 | 1.1–3.8 | 1.1–2.5 | 54.5 | 30.3 | 21.5 | 21.2 | 24.2 | 48.5 |
| Consolaro et al19 | 2.7–5.1 | 2.5–5.1 | 39.4 | 42.4 | 54.5 | 51.5 | 6.1 | 6.1 |
| MDA10 | ||||||||
| Backström et al13 20 | 4.0–15.2 | 4.0–14.0 | 69.8 | 69.8 | 20.9 | 20.9 | 9.3 | 9.3 |
| Consolaro et al12 17 18 | 3.9–10.5 | 2.6–8.5 | 53.4 | 44.2 | 21.0 | 11.6 | 25.6 | 44.2 |
| Consolaro et al19 | 5.2–18.9 | 5.1–19.0 | 74.4 | 72.1 | 25.6 | 27.9 | 0.0 | 0.0 |
| HDA13 | ||||||||
| Backström et al13 | >15.2 | >14.0 | 100.0 | 100.0 | 0.0 | 0.0 | – | – |
| Consolaro et al12 18 | >10.5 | >8.5 | 100.0 | 100.0 | 0.0 | 0.0 | – | – |
| Consolaro et al19 | >18.9 | >19.0 | 83.3 | 50.0 | 16.7 | 50.0 | – | – |
| Average CCR of all disease activity levels n=154 | ||||||||
| Backström et al13 20 | 74.7 | 74.7 | ||||||
| Consolaro et al17 18 | 71.1 | 62.7 | ||||||
| Consolaro et al19 | 71.9 | 62.7 | ||||||
CCR, correct classification rate; CID, clinically inactive disease; HDA, high disease activity; JADAS, Juvenile Arthritis Disease Activity Score; JIA, juvenile idiopathic arthritis; LDA, low disease activity; MDA, moderate disease activity; cJADAS, clinical JADAS.