Table 1 Baseline demographics and disease characteristics

Age, years

1.3 (0.33)

6.6 (3.3)

 Min, max

0.83, 1.83

2, 16

Females, n (%)

7 (63.6)

18 (47)

Weight, kg

9.97 (1.38)

20.07 (5.93)

Disease duration, years

0.319 (0.17)

4.03 (3.160)

JADAS-71, median (min, max)

20.50^b (9.0, 37.6)

32.70 (12.6, 96.1)

No. of active joints, median (min, max)

4.0 (2, 19)

13.5 (3, 71)

No. of joints with LOM, median (min, max)

3.0 (0, 15)

14.5 (0, 67)

Physician global VAS score, median (min, max)

62.0 (30, 98)

71.0 (28, 100)

ESR, mm/h

59.4^b (27.5)

64.1 (29.76)

CRP level, mg/L, median (min to max)

33.3 (18.0 to 1190.0)

123.2 (5.36 to 1704.9)

Fever, n (%)

5 (45.5)

20 (53.0)^c

Rash, n (%)

8 (72.7)

13 (34.0)

No. of patients exposed to previous biologics, n (%)

2 (18.2)^d

28 (73.7)

Previous MTX use, n (%)

2 (18.2)

31 (81.6)

Previous glucocorticoid use, n (%)

8 (72.7)

36 (94.7)