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Table 3 Urinary Incontinence following SBRT for prostate cancer: patient-reported responses to EPIC-26 questions 1 (frequency of leakage), 2 (urinary control), 3 (pad usage), 4a (dripping or leaking urine) and UI domain scores

From: Patient-reported urinary incontinence following stereotactic body radiation therapy (SBRT) for clinically localized prostate cancer

  Start 1 M 6 M 12 M 18 M 24 M 30 M 36 M
N= 204 200 186 178 165 175 171 157
Frequency of leakage         
Never leak 79.3% 69.5% 69.9% 69.1% 69.7% 68.0% 65.5% 64.3%
Leak ≤ 1 time/day 16.3% 24.0% 27.4% 27.5% 24.2% 24.6% 29.8% 29.9%
Leak >1 time/day 4.4% 6.5% 2.7% 3.4% 6.1% 7.4% 4.7% 5.7%
Urinary Control         
Total Control 72.9% 61.8% 61.8% 54.8% 57.6% 65.1% 59.1% 57.3%
Occasional dribbling 26.1% 35.2% 34.9% 41.2% 37.0% 31.4% 34.5% 36.3%
Frequent dribbling 0.0% 2.0% 1.6% 1.7% 3.0% 3.4% 5.8% 4.5%
No control 1.0% 1.0% 1.6% 2.3% 1.8% 0.0% 0.6% 1.9%
Pad Usage         
No pads 96.6% 92.5% 95.7% 92.7% 91.5% 92.0% 90.1% 89.2%
1 pad/day 3.0% 5.5% 3.2% 5.1% 6.1% 5.1% 6.4% 6.3%
≥ 2 pads/day 0.5% 2.0% 1.1% 2.2% 2.4% 2.9% 3.5% 4.5%
Bother-dripping/leaking         
No problem 75.9% 62.9% 68.3% 61.8% 64.2% 60.6% 60.8% 58.0%
Small problem 23.2% 34.5% 30.1% 34.8% 29.7% 33.7% 34.5% 35.7%
Mod-Big problem 1.0% 2.5% 1.6% 3.4% 6.1% 5.7% 4.7% 6.4%
UI Domain         
Mild (70-100) 90.1% 85.5% 86.6% 84.8% 81.8% 85.1% 83.6% 84.7%
Moderate (50-69) 7.4% 11.0% 11.8% 12.4% 14.5% 9.1% 11.1% 8.3%
Severe (0-49) 2.5% 3.5% 1.6% 2.8% 3.6% 5.7% 5.3% 7.0%