Table 1. The Demographic Characteristics of the Participants .

		Ozone group (n = 30)	LLLT group (n = 30)	Total (n = 60)	P value
Gender	Male n (%)	10 (33.3%)	12 (40 %)	22 (36.7)	0.592
	Female n (%)	20 (66.6 %)	18 (60 %)	38 (63.3%)
Age mean (SD)		57.67 ± 9.35	53.33 ± 9.37	55.5 ± 9.36	0.078
Height mean (SD)		166.9 ± 6.9	166.2 ± 4.4	166.55 ± 5.25	0.841
Weight mean (SD)		87.53 ± 12.4	92.0 ± 6.1	89.77 ± 9.87	0.083
Side of treated knee joint	Right	17 (56.7%)	16 (53.3%)	33 (55.0%)	0.79
	Left	13 (43.3%)	14 (46.7%)	27 (45.0%)