Levels of Selected Matrix Metalloproteinases, Their Inhibitors in Saliva, and Oral Status in Juvenile Idiopathic Arthritis Patients vs. Healthy Controls

Table 1

Disease duration and demographic characteristics in JIA children and controls (C) including the type of dentition.

Demographic characteristic			Mixed dentition		Permanent dentition		Total
			JIA; N = 15	C; N = 15	JIA; N = 19	C; N = 19	JIA; N = 34	C; N = 34
Disease duration (years)		Mean (SD)	3.15 (2.61)		5.71 (3.79)		4.62 (3.53)
		Min-Max	0.25–8		0.17–13		0.17–13
Age (years)		Mean (SD)	7.47 (1.46)	8.53 (2.35)	15.95 (2.17)	15.89 (2.28)	12.29 (4.57)	12.64 (4.35)
		Min-max	6–10	6–13	11–18	11–18	6–18	6–18
		value	0.384		1.0		0.74
Sex	Female	Mean (%)	10 (66.67%)	10 (66.67%)	11 (57.90%)	11 (57.90%)	21 (61.76)	21 (61.76)
	Male	Mean (%)	5 (33.33)	5 (33.33)	8 (42.10)	8 (42.10)	13 (38.24)	13 (38.24)

Note. Mann–Whitney test.