Chest
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Randomized Controlled Trial
Validation of the COPD Assessment Test (CAT) as an outcome measure in bronchiectasis.
Objective assessment of symptoms in bronchiectasis is important for research and in clinical practice. The COPD Assessment Test (CAT) is a short, simple assessment tool widely used in COPD. The items included in the CAT are not specific to COPD and also reflect the dominant symptoms of bronchiectasis. We therefore performed a study to validate the CAT as an outcome measure in bronchiectasis. ⋯ CAT is a valid, responsive symptom assessment tool in bronchiectasis. The MCID is estimated as 4 points.