Table 4.

Multiple regression model

Predictors	WOMAC total score (0–100)
	β	95% CI		Std. Error	P-value
		Lower	Upper
Constant	7.66	−24.81	40.13	16.45	0.64
Age	0.35	0.13	0.57	0.21	0.002
Comorbidity	2.12	0.06	4.19	1.05	0.04
Baseline WOMAC total (0–100)	0.44	0.29	0.59	0.08	<0.001
Self-efficacy (10–40)	−0.44	−0.87	−0.02	0.22	0.04
Social support
Reliable alliance (4–16)	−1.40	−2.81	0.01	0.71	0.05

R² = 0.285, N = 172