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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