Table 1.

Characteristics of children with juvenile idiopathic arthritis (JIA) and controls, and subgroup diagnoses of the children in the research group according to the diagnostic criteria of the International League of Association for Rheumatology. There was no difference between the groups in terms of sex, age, height, weight, and body mass index

	Children with JIA (n = 28)	Control group (n = 36)
Age in years, mean ± SD	12.9 ± 3	13.1 ± 3.1
Female, %	57	56
Height in cm, mean ± SD	156 ± 13.8	159 ± 15.2
Weight in kg, mean ± SD	51.2 ± 19.5	52.3 ± 13.3
BMI in kg/m2, mean ± SD	20.2 ± 4.6	20.3 ± 2.7
JADAS from 0 to 57	2.9 ± 3.1
Children with joint inflammation, n	6
	Arthritis subtype n (%)
Oligoarthritis	13 (46.4)
Rheumatoid factor positive polyarthritis	1 (3.6)
Rheumatoid factor negative polyarthritis	2 (7.1)
Enthesitis related arthritis	5 (17.9)
Psoriatic arthritis	2 (7.1)
Undifferentiated arthritis	5 (17.9)