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Table 4 A-C Norwegian sample findings on EPIC-26 (N = 651)

From: Psychometric properties of the expanded prostate cancer index composite - 26 instrument in a cohort of radical prostatectomy patients: theoretical and practical examinations

A. Characteristics of EPIC-26 domain-specific scores
Domain Mean (SD) % Minimum % Maximum Median (range) Cronbach’s α
Urinary
 Incontinence 71.8 (27.8) 1.5 27.9 79.3 (0.0–100.0) 0.89
 Irritation 86.7 (15.1) 0.0 29.8 90.0 (10.0–100.0) 0.72
Bowel 93.7 (12.5) 0.0 62.5 100.0 (12.5–100.0) 0.82
Sexual 32.9 (27.7) 11.8 1.1 23.7 (0.0–100.0) 0.78
Hormonal 86.9 (17.5) 0.3 41.8 95.0 (0.3–100.0) 0.78
B. Correlation matrix of EPIC-26 domains and psychosocial scales (*p < 0.001)
EPIC domains HADS-A HADS-D SF-12 PCS SF-12 MCS Neuroticism
Urinary
 Incontinence −0.16* −0.17* 0.27* 0.13* −0.22*
 Irritation −0.24* −0.26* 0.34* 0.21* −0.30*
Bowel −0.27* −0.26* 0.28* 0.20* −0.26*
Sexual −0.06 −0.16* 0.15* 0.11* −0.16*
Hormonal −0.48* −0.53* 0.47* 0.58* −0.66*
Urinary bother −0.17* −0.19* 0.29* 0.20* −0.26*
Bowel bother −0.23* −0.21* 0.24* 0.15* −0.21*
Sexual bother −0.14* −0.13* 0.15* 0.15* −0.18*
C. Correlation matrix of EPIC-26 domains and prostate cancer variables (*p < 0.02)
EPIC-26 domains D’Amico risk score Positive margins Prostate volume Nerve-sparing Relapse
Urinary
 Incontinence −0.14* −0.03 −0.12* 0.16* −0.08
 Irritation −0.13* −0.07 −0.02 0.15* −0.13*
Bowel −0.11* −0.07 −0.02 0.09* −0.06
Sexual −0.19* −0.08 −0.19* 0.28* −0.10*
Hormonal −0.10* −0.08 0.04 0.16* −0.20*
Urinary bother −0.11* −0.05 −0.06 0.11* −0.13*
Bowel bother −0.11* −0.10* −0.03 0.09* −0.05
Sexual bother −0.10* −0.13* −0.16* 0.16* −0.02