TABLE 4.

Multiple regression analysis of the combined influence of clinical characteristics and treatment of type variables on VAS in patients with KOA.

Variables	B	SE	β	t	P
Constant	4.18	1.08	-	3.87	<0.001
Type of treatment*	−0.90	0.19	−0.45	−4.96	<0.001
Sex*	−0.22	0.26	-0.09	-0.83	0.413
Age	0.02	0.01	0.23	2.18	0.034
BMI	0.01	0.03	0.05	0.45	0.654
K-L Grade*	0.68	0.15	0.48	4.64	<0.001

Model summary: r = 0.575; p < 0.001. Coefficient B indicates the number of units that the dependent variable increases by for each increase in the unit of the independent variable. SE, is the standard error. The coefficient β is the standardized coefficient B. VAS, visual analogue scale; KOA, knee osteoarthritis; BMI, body mass index; K-L; Kellgren-Lawrence; *The hyaluronic acid group, the male, and Kellgren-Lawrence grade I served as the control group, respectively. Boldface indicates the significant differences in p value.

The bold values indicate a significant difference in the dependent variable caused by the change in the independent variable.