Table 3.

Results of the multiple backward linear regression to estimate association of the tested parameters with the PD after treatment (n = 293)

Explanatory variable	β	t	P
Sector	−0.016	−0.281	0.779
α-Angle	0.006	0.100	0.920
Height	0.108	1.841	0.067

β correlation coefficients; R square of the model, 0.12. None of the differences in the tested parameters was significantly associated with PD scores after treatment at the multiple linear regression