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Table 5 Item reliability for the 5 items of CET (N = 237)

From: A new simple score of chronic cough: cough evaluation test

 

Scale Mean if Item Deleted

Scale Variance if Item Deleted

Corrected Item-Total Correlation

Squared Multiple Correlation

Cronbach’s Alpha if Item Deleted

Cough during the day

10.35

13.98

0.47

0.26

0.80

Cough disturbed sleep

11.73

11.64

0.55

0.33

0.79

Intense cough

11.22

11.56

0.66

0.45

0.75

Cough interfered with daily life

11.32

10.56

0.69

0.50

0.74

Feel anxious or depressive

11.13

11.28

0.62

0.42

0.76