Table 5.

Regression analysis of loose seed brachytherapy cases (n = 33)

	r value	r2value	Correlation	(95% CI)	p value
Prostate D90-PI, Prostate D90-post	0.09	0.008	None	(–0.35_0.59)	0.61
Prostate V100-PI, Prostate V100-post	0.09	0.007	None	(–0.79_1.28)	0.62
Prostate V150-PI, Prostate V150-post	0.54	0.3	Significant correlation	(0.17_0.62)	0.001
Urethral D90-PI, Urethral D90-post	0.55	0.3	Significant correlation	(0.27_0.93)	<0.001
Urethral D10-PI, Urethral D10-post	0.56	0.32	Significant correlation	(0.31_1.02)	<0.001
Urethral D5-PI, Urethral D5-post	0.43	0.19	Significant correlation	(0.15_1.07)	0.01
RV100-PI, RV100-post	0.54	0.3	Significant correlation	(0.38_1.36)	0.001
RD2-PI, RD2-post	0.59	0.35	Significant correlation	(0.28_0.86)	<0.001

PI: prostate implantation

RV100: Rectal V100

RD2: Rectal D2