Table 1.

Comparison of clinical characteristics between OA patients and the control group

	OA group (n = 20)	Control group (n = 20)	P value
Gender
Male	11	10	0.64
Female	9	10
Age
< 60	13	14	0.07
≥ 60	7	6
BMI (kg/m2)
< 24	7	8	0.12
≥ 24	13	12
Kellgren-Lawrence grading
2	8
3	7
4	5