The CRQ is a 20-item questionnaire examines how chronic obstructive pulmonary disease (COPD) effects quality of life, and evaluates four dimensions: dyspnea, fatigue, emotional function, and mastery. Dyspnea portion is individualized to each person: the person is aksed to select the 5 activities associated with beathlessness that they perform frequently and are most important to them. Items are scored from 1 (most severe) to 7 (no impairment);
Year: 1987 Authors: Guyatt et al Disease: COPD Outcome: COPD symptoms (short term)
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Measure: Dyspnea or breathlessness
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Number of RCTs that used this tool (in our study): 33
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Scale: Higher scores are better, scores range 1-7 Reference: Guyatt, G. H., Berman, L. B., Townsend, M., Pugsley, S. O., & Chambers, L. W. (1987). A measure of quality of life for clinical trials in chronic lung disease. Thorax, 42(10), 773–778.
Target population: General population Focus Disease specific Translations available: Yes Original version validated: Yes Original language: English Form of delivery: Self-reported Licence needed: Yes 10.1136/thx.42.10.773

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