Table 2

Remission rates and distribution of the JADAS3 at 30-year follow-up according to the ILAR classification of JIA

ILAR classificationN (%)In remission off medication*JADAS3†JADAS3
0–1.0
JADAS3
1.1–2.0
JADAS3
2.1–4.5
JADAS3
>4.5
Systemic arthritis12 (7)10 (83)0.6 (0.4 to 5.1)8 (67)2 (17)1 (8)1 (8)
Polyarticular RF negative25 (14)13 (52)3.9 (0.4 to 10.5)7 (28)2 (8)5 (20)11 (44)
Polyarticular RF positive6 (3)1 (17)4.5 (1.4 to 23.1)0 (0)1 (17)2 (33)3 (50)
Oligoarticular persistent50 (28)40 (80)0.8 (0.2 to 12.7)26 (52)7 (14)9 (18)8 (16)
Oligoarticular extended24 (14)12 (50)2.6 (0.4 to13.3)8 (33)4 (17)5 (21)7 (29)
Enthesitis-related arthritis27 (15)10 (37)3.1 (0.2 to 15.6)10 (37)3 (11)4 (15)10 (37)
Psoriatic arthritis21 (12)10 (48)2.8 (0.3 to 12.1)7 (33)3 (14)3 (14)8 (38)
Undifferentiated arthritis11 (6)7 (64)0.7 (0.4 to 11.7)6 (55)1 (9)2 (18)2 (18)
Total176 (100)103 (59)1.9 (0.2 to 23.1)72 (41)23 (13)31 (18)50 (28)
  • Values refer to numbers (%) or median (range).

  • *p=0.001 for differences between categories.

  • †p=0.019 for differences between categories.

  • JADAS3, Juvenile Arthritis Disease Activity Score, clinical version; RF, rheumatoid factor; ILAR, International League of Associations for Rheumatology; JIA, juvenile idiopathic arthritis.