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Table 2 Cronbach’s alpha analysis

From: Portuguese version of the Expanded Prostate Cancer Index Composite for Clinical Practice (EPIC-CP): psychometric validation and prospective application for early functional outcomes at a single institution

EPIC-CP

Cronbach’s alpha

Median

SD

IC 95%

Urinary

 Incontinence

1.1

1.8

0.82

0.77–0.86

 Irritation/obstruction

0.3

1.3

0.75

0.67–0.81

Bowel

1.1

0.7

0.77

0.70–0.83

Sexual

5.8

3.0

0.76

0.68–0.82

Vitalily/hormonal

0.29

1.0

0.35

0.14–0.51

Total

10.1

5.8

0.77

0.71–0.82