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. Author manuscript; available in PMC: 2020 Aug 31.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2018 Dec 31;104(1):50–60. doi: 10.1016/j.ijrobp.2018.12.047

Table 3.

Patient-reported quality-of-life assessments

2-wk posttreatment difference from baseline
Assessment tool   Dose level No. Median (Min, Q1, Q3, Max)

EPIC-26: Bowel* 3.6 Gy × 15 fractions 6 −4.2 (−50.0, −20.8, 0, 8.3)
4.7 Gy × 10 fractions 6 −33.3 (−87,5, −54.2, 0, 3.3)
7.1 Gy × 5 fractions 12 −31.3 (−75.0, −54.2, −14.6, 8.3)
EPIC-26: Urinary irritative* 3.6 Gy × 15 fractions 6 −6.3 (−25, −18.8, 0, 6.3)
4.7 Gy × 10 fractions 6 0 (−6.3, −6.3, 0, 12.5)
7.1 Gy × 5 fractions 12 −6.3 (−56.3, −18.8, −3.1, 12.5)
EPIC-26: Urinary incontinence* 3.6 Gy × 15 fractions 6 4.1 (−12.5, −8.3, 8.3, 8.3)
4.7 Gy × 10 fractions 6 3.1 (0, 0, 6.3, 14.5)
7.1 Gy × 5 fractions 12 3.1 (−31.3, −11.5, 6.3, 62.8)
IPSS total score 3.6 Gy × 15 fractions 6 2 (−3, −3, 7, 9)
4.7 Gy × 10 fractions 6 1 (−1, −1, 3, 4)
7.1 Gy × 5 fractions 12 2 (−3, 0, 3, 14)

6-wk posttreatment difference from baseline
10-wk posttreatment difference from baseline
6-mo posttreatment difference from baseline
No. Median (Min, Q1, Q3, Max) No. Median (Min, Q1, Q3, Max) No. Median (Min, Q1, Q3, Max)

6 0 (−25.0, 0, 4.2, 8.3) 6 0 (−16.7, 0, 8.3, 8.3) 6 −2.1 (−4.2, −4.2, 8.3, 12.5)
6 −6.3 (−37.5, −25, 0, 12.5) 6 −2.1 (−25.0, −12.5, 0, 16.7) 6 −4.2 (−8.3, −8.3, 0, 0)
12 −16.7 (−50.0, −31.3, −2.1, 8.3) 11 −16.7 (−54,2, −20.8, 0, 8.3) 12 −6.3 (−41.7, −12.5, 0, 11.7)
6 −6.3 (−12.5, −6.3, −6.3, 31.3) 6 0 (−12.5, 0, 6.3, 37.5) 6 0 (−6.3, 0, 12.5, 37.5)
6 0 (−6.3, 0, 6.3, 18.8) 6 0 (−6.3, −6.3, 6.3, 25) 6 3.1 (0, 0, 6.3, 6.3)
12 −6.3 (−43.8, −12.5, 0, 6.3) 11 0 (−6.3, −6.3, 6.3, 25) 12 0 (−50, −6.3, 6.3, 25)
6 1 (−27, −12.5, 8.3, 33.3) 6 6.3 (0, 6.3, 22.8, 41.8) 6 0 (−33.3, −14.5, 45.8, 60.5)
6 0 (−8.3, −6.3, 6.3, 22.8) 6 1 (−14.5, 0, 6.3, 29) 6 −7.3 (−20.8, −16.8, 0, 0)
12 2 (−21, 0, 9.4, 35.8) 11 0 (−12.5, −6.3, 6.3, 27) 12 −3.1 (−21, −10.4, 21.9, 69)
6 2 (−7, −3, 5, 7) 6 −1.5 (−9, −7, 0, 2) 6 0.5 (−9, −6, 3, 4)
6 2 (−2, 0, 3, 3) 6 2 (−14, 0, 3, 4) 6 1 (−3, −1, 3, 3)
12 1 (−9, −2.5, 7.5, 14) 11 0 (−6, 0, 4, 9) 12 2 (−7, −2.5, 4.5, 18)

Abbreviations: EPIC = Expanded Prostate Cancer Index; IPSS = International Prostate Symptom Score; max = maximum; Min = minimum.

*

EPIC-26 (range 0–100). The higher the score, the better the patient is doing.

IPSS (range 0–35). Scores 1 to 7 = mild, 8 to 19 = moderate, 20 to 35 = severe prostate symptoms.