Table 3.

Regression analysis for all cases (n = 61)

	r value	r2value	Correlation	(95% CI)	p value
Prostate D90-PI, Prostate D90-post	0.09	0.006	None	(–0.26_0.48)	0.54
Prostate V100-PI, Prostate V100-post	0.18	0.034	None	(–0.22_1.35)	0.16
Prostate V150-PI, Prostate V150-post	0.57	0.33	Significant correlation	(0.31_0.69)	<0.001
Urethral D90-PI, Urethral D90-post	0.58	0.33	Significant correlation	(0.34_0.82)	<0.001
Urethral D10-PI, Urethral D10-post	0.69	0.47	Significant correlation	(0.62_1.10)	<0.001
Urethral D5-PI, Urethral D5-post	0.54	0.3	Significant correlation	(0.54_1.16)	<0.001
RV100-PI, RV100-post	0.28	0.08	None	(0.06_0.75)	0.02
RD2-PI, RD2-post	0.54	0.3	Significant correlation	(0.29_0.67)	<0.001

PI: prostate implantation

RV100: Rectal V100

RD2: Rectal D2