Table 3.

Patient-reported responses to IPSS-irritative voiding questions at baseline and following SBRT for prostate cancer, recorded as the percent of the patient cohort.

	Start	1	3	6	9	12	18	24	30	36
A. Frequency
Never	17.7%	11.5%	17.7%	16.1%	13.5%	17.4%	15.8%	21.7%	19.3%	21.7%
Less than half	52.7%	44.5%	62.6%	60.2%	57.8%	51.7%	60.6%	57.7%	58.5%	52.2%
Half or more	24.1%	37.5%	16.7%	21.5%	23.2%	27.0%	21.2%	16.0%	19.3%	23.6%
Almost always	5.4%	6.5%	3.0%	2.2%	5.4%	3.9%	2.4%	4.6%	2.9%	2.5%
Wilcoxon		<0.0001*	0.1358	0.1787	0.8268	0.9429	0.093	0.0022*	0.0066*	0.1198
N =	203	200	198	186	185	178	165	175	171	157
B. Urgency
Never	41.9%	21.0%	35.5%	31.2%	31.4%	32.0%	33.5%	39.4%	35.1%	39.5%
Less than half	41.9%	47.0%	47.2%	50.5%	48.6%	45.5%	48.2%	42.3%	46.8%	43.3%
Half or more	10.8%	25.0%	12.2%	14.5%	13.5%	16.3%	12.2%	11.4%	12.9%	10.2%
Almost always	5.4%	7.0%	5.1%	3.8%	6.5%	6.2%	6.7%	6.9%	5.3%	7.0%
Wilcoxon		<0.0001*	0.6357	0.0943	0.0738	0.0287*	0.1207	0.6797	0.6818	0.5435
N =	203	200	198	186	185	178	165	175	171	157
C. Nocturia
None	9.4%	5.0%	9.6%	7.5%	7.6%	10.1%	9.1%	9.1%	9.9%	6.4%
1 time	38.4%	21.0%	31.3%	39.8%	35.1%	28.7%	37.0%	33.7%	36.3%	38.9%
2 times	25.6%	31.0%	34.8%	29.0%	28.6%	34.3%	30.3%	32.6%	30.4%	33.8%
≥3 times	26.6%	43.0%	24.2%	23.7%	28.6%	27.0%	23.6%	24.6%	23.4%	21.0%
Wilcoxon		< 0.0001**	0.5314	0.5303	0.2733	0.087	0.9624	0.6498	0.797	0.8063
N =	203	200	198	186	185	178	165	175	171	157

(A) Frequency (IPSS question 2) defined as how often a patient had to urinate within 2 hours of previously urinating.

(B) Urgency (IPSS question 4) defined as how often a patient found it difficult to postpone urination.

(C) Nocturia (IPSS question 7) defined as how often a patient needed to get up to urinate at night.