Skip to main content

Table 2 BCI scores distribution and internal consistency

From: Bladder cancer index: cross-cultural adaptation into Spanish and psychometric evaluation

BCI domains

N° items

Mean (SD)

Missing items

Missing score

Observed range

Floor effect

Ceiling effect

Cronbach’s alpha

Urinary

14

88.8 (19.3)

15.7

8.6

0 – 100

0.6

50.0

0.92

Function

6

88.2 (24.4)

7.6

7.6

0 – 100

2.7

71.4

0.91

Bother

8

89.2 (20.0)

13.7

10.2

0 – 100

0.6

58.2

0.90

Bowel

10

90.1 (14.7)

7.6

2.5

13.9 – 100

0

34.4

0.84

Function

4

92.4 (15.1)

4.1

4.1

6.3 – 100

0

57.7

0.75

Bother

6

89.0 (17.2)

6.1

3.0

20.0 – 100

0

51.3

0.78

Sexual

12

51.5 (24.0)

17.8

12.7

6.8 – 100

0

2.9

0.88

Function

7

31.2 (32.1)

15.2

10.7

0 – 100

33.0

4.0

0.97

Bother

5

79.3 (29.8)

15.2

12.7

0 – 100

0.6

58.1

0.86

  1. Missing items: percentage of patients with any missing items; Missing score: percentage of patients with any missing score; Floor effect: percentage of patients with worst possible score (0); Ceiling effect: percentage of patients with best possible score (100).