Table 4.

Regression model analysis of toxicity.

Ordinal regression model GI toxicity	OR	95% CI	p-value
Years from first to second treatment	0.82	[0.44, 1.32]	0.45
Dmax urethra, Gy	0.99	[0.94, 1.04]	0.81
Initial treatment-seeds	0.28	[0.01, 2.47]	0.29
Ordinal regression model GU toxicity	OR	95% CI	p-value
Years from first to second treatment	0.82	[0.49, 1.24]	0.38
Dmax urethra, Gy	0.99	[0.96, 1.02]	0.61
Initial treatment-seeds	2.23	[0.36, 18.26]	0.40
Ordinal regression model toxicity GI	OR	95% CI	p-value
Volume*Seeds	1.003	[0.998, 1.009]	0.27
D90	1.05	[0.92, 1.29]	0.58
V100	1.01	[0.85, 1.30]	0.91
V150	0.93	[0.80, 1.07]	0.33
V200	0.92	[0.68, 1.20]	0.54
Ordinal regression model GU toxicity	OR	95% CI	p-value
Volume*Seeds	1.004	[0.999, 1.011]	0.12
D90	1.01	[0.91, 1.17]	0.84
V100	0.997	[0.86, 1.20]	0.97
V150	0.98	[0.87, 1.10]	0.77
V200	0.88	[0.67, 1.12]	0.32

CI, confidence interval; OR, odds ratio; GI, gastrointestinal; GU, genitourinary.

*Volume and seeds have been considered at the same time.