Table 1 Demographic and clinical characteristics of the study population (n = 87) at baseline

Sex (female)

55 (63.2%)

Current age in years, median (IQR)

11 (7; 15)

JIA characteristics

Disease duration at the last visit, median (IQR)

2 (5; 9)

JIA category

Systemic

6 (6.9%)

Oligoarticular, persistent

39 (44.8%)

Oligoarticular, extended

6 (6.9%)

Polyarticular RF negative

16 (18.4%)

Polyarticular RF positive

3 (3.4%)

Psoriatic

7 (8.0%)

ERA

6 (6.9%)

Undifferentiated

4 (4.6%)

Extra-articular manifestations

24 (27.6%)

Uveitis

10 (11.5%)

Psoriasis

8 (9.2%)

Others^b

6 (6.8%)

Treatment

No current treatment

29 (33.3%)

Conventional synthetic DMARDs

42 (48.3%)

Biological DMARDs

40 (46.0%)

Laboratory data

ESR (mm/h), median (IQR)^c

6 (2; 13)

CRP (mg/dL), median (IQR)^d

0.08 (0.05; 0.22)

Disease activity state

Remission (by Wallace criteria)

69 (79.3%)

Remission (by JADAS27-ESR < 1)^c

42 (50.6%)

Remission (by JADAS27-CRP < 1)^d

45 (52.3%)

Quality of life

PRQL – JAMAR, median (IQR)^c

1 (0; 5)

Physical (JAMAR), median (IQR)^c

1 (0; 3)

Psychosocial (JAMAR), median (IQR)^c

0 (0; 2)

Satisfaction with disease outcome (JAMAR)^c

75 (90.4%)