Assessing health status in COPD. A head-to-head comparison between the COPD assessment test (CAT) and the clinical COPD questionnaire (CCQ) Full Text
BMC Pulmonary Medicine, 05/21/2012
Tsiligianni IG et al. – The COPD assessment test and Clinical COPD Questionnaire have similar psychometric properties with a slight advantage for Clinical COPD Questionnaire based mainly on patients' preference and are both valid and reliable questionnaires to assess health status in COPD patients.