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Table 4 Internal consistency

From: The validity and precision of the leicester cough questionnaire in COPD patients with chronic cough

 

Cronbach's alpha coefficient

LCQ*

Birring[16]†

Huisman[17]†

This study‡

   physical

0.79

0.77

0.67

   psychological

0.89

0.84

0.75

   social

0.85

0.83

0.74

   total

0.92

0.93

0.86

  1. * Leicester Cough questionnaire
  2. † patients with chronic cough
  3. ‡ patients with COPD and chronic productive cough
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Health and Quality of Life Outcomes

ISSN: 1477-7525

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